237 files changed, 4363 insertions, 2474 deletions
diff --git a/Documentation/ABI/obsolete/proc-pid-oom_adj b/Documentation/ABI/obsolete/proc-pid-oom_adj
new file mode 100644
index 000000000000..cf63f264ce0f
--- /dev/null
+++ b/Documentation/ABI/obsolete/proc-pid-oom_adj
@@ -0,0 +1,22 @@
+What:   /proc/<pid>/oom_adj
+When:   August 2012
+Why:    /proc/<pid>/oom_adj allows userspace to influence the oom killer's
+        badness heuristic used to determine which task to kill when the kernel
+        is out of memory.
+        The badness heuristic has since been rewritten since the introduction of
+        this tunable such that its meaning is deprecated.  The value was
+        implemented as a bitshift on a score generated by the badness()
+        function that did not have any precise units of measure.  With the
+        rewrite, the score is given as a proportion of available memory to the
+        task allocating pages, so using a bitshift which grows the score
+        exponentially is, thus, impossible to tune with fine granularity.
+        A much more powerful interface, /proc/<pid>/oom_score_adj, was
+        introduced with the oom killer rewrite that allows users to increase or
+        decrease the badness() score linearly.  This interface will replace
+        /proc/<pid>/oom_adj.
+        A warning will be emitted to the kernel log if an application uses this
+        deprecated interface.  After it is printed once, future warnings will be
+        suppressed until the kernel is rebooted.
diff --git a/Documentation/filesystems/xfs-delayed-logging-design.txt b/Documentation/filesystems/xfs-delayed-logging-design.txt
index 96d0df28bed3..7445bf335dae 100644
--- a/Documentation/filesystems/xfs-delayed-logging-design.txt
+++ b/Documentation/filesystems/xfs-delayed-logging-design.txt
@@ -794,17 +794,6 @@ designed.
 Roadmap:
-2.6.37 Remove experimental tag from mount option
-        => should be roughly 6 months after initial merge
-        => enough time to:
-                => gain confidence and fix problems reported by early
-                   adopters (a.k.a. guinea pigs)
-                => address worst performance regressions and undesired
-                   behaviours
-                => start tuning/optimising code for parallelism
-                => start tuning/optimising algorithms consuming
-                   excessive CPU time
 2.6.39 Switch default mount option to use delayed logging
        => should be roughly 12 months after initial merge
        => enough time to shake out remaining problems before next round of
diff --git a/Documentation/leds-class.txt b/Documentation/leds-class.txt
index 8fd5ca2ae32d..58b266bd1846 100644
--- a/Documentation/leds-class.txt
+++ b/Documentation/leds-class.txt
@@ -60,15 +60,18 @@ Hardware accelerated blink of LEDs
 Some LEDs can be programmed to blink without any CPU interaction. To
 support this feature, a LED driver can optionally implement the
-blink_set() function (see <linux/leds.h>). If implemented, triggers can
+blink_set() function (see <linux/leds.h>). To set an LED to blinking,
-attempt to use it before falling back to software timers. The blink_set()
+however, it is better to use use the API function led_blink_set(),
-function should return 0 if the blink setting is supported, or -EINVAL
+as it will check and implement software fallback if necessary.
-otherwise, which means that LED blinking will be handled by software.
+To turn off blinking again, use the API function led_brightness_set()
-The blink_set() function should choose a user friendly blinking
+as that will not just set the LED brightness but also stop any software
-value if it is called with *delay_on==0 && *delay_off==0 parameters. In
+timers that may have been required for blinking.
-this case the driver should give back the chosen value through delay_on
-and delay_off parameters to the leds subsystem.
+The blink_set() function should choose a user friendly blinking value
+if it is called with *delay_on==0 && *delay_off==0 parameters. In this
+case the driver should give back the chosen value through delay_on and
+delay_off parameters to the leds subsystem.
 Setting the brightness to zero with brightness_set() callback function
 should completely turn off the LED and cancel the previously programmed
diff --git a/Documentation/leds/leds-lp5521.txt b/Documentation/leds/leds-lp5521.txt
new file mode 100644
index 000000000000..c4d8d151e0fe
--- /dev/null
+++ b/Documentation/leds/leds-lp5521.txt
@@ -0,0 +1,88 @@
+Kernel driver for lp5521
+========================
+* National Semiconductor LP5521 led driver chip
+* Datasheet: http://www.national.com/pf/LP/LP5521.html
+Authors: Mathias Nyman, Yuri Zaporozhets, Samu Onkalo
+Contact: Samu Onkalo (samu.p.onkalo-at-nokia.com)
+Description
+-----------
+LP5521 can drive up to 3 channels. Leds can be controlled directly via
+the led class control interface. Channels have generic names:
+lp5521:channelx, where x is 0 .. 2
+All three channels can be also controlled using the engine micro programs.
+More details of the instructions can be found from the public data sheet.
+Control interface for the engines:
+x is 1 .. 3
+enginex_mode : disabled, load, run
+enginex_load : store program (visible only in engine load mode)
+Example (start to blink the channel 2 led):
+cd   /sys/class/leds/lp5521:channel2/device
+echo "load" > engine3_mode
+echo "037f4d0003ff6000" > engine3_load
+echo "run" > engine3_mode
+stop the engine:
+echo "disabled" > engine3_mode
+sysfs contains a selftest entry.
+The test communicates with the chip and checks that
+the clock mode is automatically set to the requested one.
+Each channel has its own led current settings.
+/sys/class/leds/lp5521:channel0/led_current - RW
+/sys/class/leds/lp5521:channel0/max_current - RO
+Format: 10x mA i.e 10 means 1.0 mA
+example platform data:
+Note: chan_nr can have values between 0 and 2.
+static struct lp5521_led_config lp5521_led_config[] = {
+        {
+                .chan_nr        = 0,
+                .led_current    = 50,
+                .max_current    = 130,
+        }, {
+                .chan_nr        = 1,
+                .led_current    = 0,
+                .max_current    = 130,
+        }, {
+                .chan_nr        = 2,
+                .led_current    = 0,
+                .max_current    = 130,
+        }
+};
+static int lp5521_setup(void)
+{
+        /* setup HW resources */
+}
+static void lp5521_release(void)
+{
+        /* Release HW resources */
+}
+static void lp5521_enable(bool state)
+{
+        /* Control of chip enable signal */
+}
+static struct lp5521_platform_data lp5521_platform_data = {
+        .led_config     = lp5521_led_config,
+        .num_channels   = ARRAY_SIZE(lp5521_led_config),
+        .clock_mode     = LP5521_CLOCK_EXT,
+        .setup_resources   = lp5521_setup,
+        .release_resources = lp5521_release,
+        .enable            = lp5521_enable,
+};
+If the current is set to 0 in the platform data, that channel is
+disabled and it is not visible in the sysfs.
diff --git a/Documentation/leds/leds-lp5523.txt b/Documentation/leds/leds-lp5523.txt
new file mode 100644
index 000000000000..fad2feb8b7ce
--- /dev/null
+++ b/Documentation/leds/leds-lp5523.txt
@@ -0,0 +1,83 @@
+Kernel driver for lp5523
+========================
+* National Semiconductor LP5523 led driver chip
+* Datasheet: http://www.national.com/pf/LP/LP5523.html
+Authors: Mathias Nyman, Yuri Zaporozhets, Samu Onkalo
+Contact: Samu Onkalo (samu.p.onkalo-at-nokia.com)
+Description
+-----------
+LP5523 can drive up to 9 channels. Leds can be controlled directly via
+the led class control interface. Channels have generic names:
+lp5523:channelx where x is 0...8
+The chip provides 3 engines. Each engine can control channels without
+interaction from the main CPU. Details of the micro engine code can be found
+from the public data sheet. Leds can be muxed to different channels.
+Control interface for the engines:
+x is 1 .. 3
+enginex_mode : disabled, load, run
+enginex_load : microcode load (visible only in load mode)
+enginex_leds : led mux control (visible only in load mode)
+cd /sys/class/leds/lp5523:channel2/device
+echo "load" > engine3_mode
+echo "9d80400004ff05ff437f0000" > engine3_load
+echo "111111111" > engine3_leds
+echo "run" > engine3_mode
+sysfs contains a selftest entry. It measures each channel
+voltage level and checks if it looks reasonable. If the level is too high,
+the led is missing; if the level is too low, there is a short circuit.
+Selftest uses always the current from the platform data.
+Each channel contains led current settings.
+/sys/class/leds/lp5523:channel2/led_current - RW
+/sys/class/leds/lp5523:channel2/max_current - RO
+Format: 10x mA i.e 10 means 1.0 mA
+Example platform data:
+Note - chan_nr can have values between 0 and 8.
+static struct lp5523_led_config lp5523_led_config[] = {
+        {
+                .chan_nr        = 0,
+                .led_current    = 50,
+                .max_current    = 130,
+        },
+...
+        }, {
+                .chan_nr        = 8,
+                .led_current    = 50,
+                .max_current    = 130,
+        }
+};
+static int lp5523_setup(void)
+{
+        /* Setup HW resources */
+}
+static void lp5523_release(void)
+{
+        /* Release HW resources */
+}
+static void lp5523_enable(bool state)
+{
+        /* Control chip enable signal */
+}
+static struct lp5523_platform_data lp5523_platform_data = {
+        .led_config     = lp5523_led_config,
+        .num_channels   = ARRAY_SIZE(lp5523_led_config),
+        .clock_mode     = LP5523_CLOCK_EXT,
+        .setup_resources   = lp5523_setup,
+        .release_resources = lp5523_release,
+        .enable            = lp5523_enable,
+};
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 3894eaa23486..209e1584c3dc 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -28,6 +28,7 @@ show up in /proc/sys/kernel:
 - core_uses_pid
 - ctrl-alt-del
 - dentry-state
+- dmesg_restrict
 - domainname
 - hostname
 - hotplug
@@ -213,6 +214,19 @@ to decide what to do with it.
 ==============================================================
+dmesg_restrict:
+This toggle indicates whether unprivileged users are prevented from using
+dmesg(8) to view messages from the kernel's log buffer.  When
+dmesg_restrict is set to (0) there are no restrictions.  When
+dmesg_restrict is set set to (1), users must have CAP_SYS_ADMIN to use
+dmesg(8).
+The kernel config option CONFIG_SECURITY_DMESG_RESTRICT sets the default
+value of dmesg_restrict.
+==============================================================
 domainname & hostname:
 These files can be used to set the NIS/YP domainname and the
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 54b479c35ee0..51dcd59eda6a 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -116,4 +116,6 @@ endmenu
 config SH_CLK_CPG
        bool
+source "drivers/sh/Kconfig"
 endif
diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index 46ca4d4abf91..32d9e2816e56 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -565,12 +565,50 @@ static struct platform_device *qhd_devices[] __initdata = {
 /* FSI */
 #define IRQ_FSI         evt2irq(0x1840)
+static int fsi_set_rate(int is_porta, int rate)
+{
+        struct clk *fsib_clk;
+        struct clk *fdiv_clk = &sh7372_fsidivb_clk;
+        int ret;
+        /* set_rate is not needed if port A */
+        if (is_porta)
+                return 0;
+        fsib_clk = clk_get(NULL, "fsib_clk");
+        if (IS_ERR(fsib_clk))
+                return -EINVAL;
+        switch (rate) {
+        case 48000:
+                clk_set_rate(fsib_clk, clk_round_rate(fsib_clk, 85428000));
+                clk_set_rate(fdiv_clk, clk_round_rate(fdiv_clk, 12204000));
+                ret = SH_FSI_ACKMD_256 | SH_FSI_BPFMD_64;
+                break;
+        default:
+                pr_err("unsupported rate in FSI2 port B\n");
+                ret = -EINVAL;
+                break;
+        }
+        clk_put(fsib_clk);
+        return ret;
+}
 static struct sh_fsi_platform_info fsi_info = {
        .porta_flags = SH_FSI_BRS_INV |
                       SH_FSI_OUT_SLAVE_MODE |
                       SH_FSI_IN_SLAVE_MODE |
                       SH_FSI_OFMT(PCM) |
                       SH_FSI_IFMT(PCM),
+        .portb_flags = SH_FSI_BRS_INV |
+                       SH_FSI_BRM_INV |
+                       SH_FSI_LRS_INV |
+                       SH_FSI_OFMT(SPDIF),
+        .set_rate = fsi_set_rate,
 };
 static struct resource fsi_resources[] = {
@@ -634,6 +672,7 @@ static struct platform_device lcdc1_device = {
 static struct sh_mobile_hdmi_info hdmi_info = {
        .lcd_chan = &sh_mobile_lcdc1_info.ch[0],
        .lcd_dev = &lcdc1_device.dev,
+        .flags = HDMI_SND_SRC_SPDIF,
 };
 static struct resource hdmi_resources[] = {
@@ -992,6 +1031,7 @@ static void __init ap4evb_map_io(void)
 #define GPIO_PORT9CR    0xE6051009
 #define GPIO_PORT10CR   0xE605100A
+#define USCCR1          0xE6058144
 static void __init ap4evb_init(void)
 {
        u32 srcr4;
@@ -1062,7 +1102,7 @@ static void __init ap4evb_init(void)
        /* setup USB phy */
        __raw_writew(0x8a0a, 0xE6058130);       /* USBCR2 */
-        /* enable FSI2 */
+        /* enable FSI2 port A (ak4643) */
        gpio_request(GPIO_FN_FSIAIBT,   NULL);
        gpio_request(GPIO_FN_FSIAILR,   NULL);
        gpio_request(GPIO_FN_FSIAISLD,  NULL);
@@ -1079,6 +1119,10 @@ static void __init ap4evb_init(void)
        gpio_request(GPIO_PORT41, NULL);
        gpio_direction_input(GPIO_PORT41);
+        /* setup FSI2 port B (HDMI) */
+        gpio_request(GPIO_FN_FSIBCK, NULL);
+        __raw_writew(__raw_readw(USCCR1) & ~(1 << 6), USCCR1); /* use SPDIF */
        /* set SPU2 clock to 119.6 MHz */
        clk = clk_get(NULL, "spu_clk");
        if (!IS_ERR(clk)) {
diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c
index 8565aefa21fd..7db31e6c6bf2 100644
--- a/arch/arm/mach-shmobile/clock-sh7372.c
+++ b/arch/arm/mach-shmobile/clock-sh7372.c
@@ -50,6 +50,9 @@
 #define SMSTPCR3        0xe615013c
 #define SMSTPCR4        0xe6150140
+#define FSIDIVA         0xFE1F8000
+#define FSIDIVB         0xFE1F8008
 /* Platforms must set frequency on their DV_CLKI pin */
 struct clk sh7372_dv_clki_clk = {
 };
@@ -288,6 +291,7 @@ struct clk sh7372_pllc2_clk = {
        .ops            = &pllc2_clk_ops,
        .parent         = &extal1_div2_clk,
        .freq_table     = pllc2_freq_table,
+        .nr_freqs       = ARRAY_SIZE(pllc2_freq_table) - 1,
        .parent_table   = pllc2_parent,
        .parent_num     = ARRAY_SIZE(pllc2_parent),
 };
@@ -417,6 +421,101 @@ static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = {
                                      fsibckcr_parent, ARRAY_SIZE(fsibckcr_parent), 6, 2),
 };
+/* FSI DIV */
+static unsigned long fsidiv_recalc(struct clk *clk)
+{
+        unsigned long value;
+        value = __raw_readl(clk->mapping->base);
+        if ((value & 0x3) != 0x3)
+                return 0;
+        value >>= 16;
+        if (value < 2)
+                return 0;
+        return clk->parent->rate / value;
+}
+static long fsidiv_round_rate(struct clk *clk, unsigned long rate)
+{
+        return clk_rate_div_range_round(clk, 2, 0xffff, rate);
+}
+static void fsidiv_disable(struct clk *clk)
+{
+        __raw_writel(0, clk->mapping->base);
+}
+static int fsidiv_enable(struct clk *clk)
+{
+        unsigned long value;
+        value  = __raw_readl(clk->mapping->base) >> 16;
+        if (value < 2) {
+                fsidiv_disable(clk);
+                return -ENOENT;
+        }
+        __raw_writel((value << 16) | 0x3, clk->mapping->base);
+        return 0;
+}
+static int fsidiv_set_rate(struct clk *clk,
+                           unsigned long rate, int algo_id)
+{
+        int idx;
+        if (clk->parent->rate == rate) {
+                fsidiv_disable(clk);
+                return 0;
+        }
+        idx = (clk->parent->rate / rate) & 0xffff;
+        if (idx < 2)
+                return -ENOENT;
+        __raw_writel(idx << 16, clk->mapping->base);
+        return fsidiv_enable(clk);
+}
+static struct clk_ops fsidiv_clk_ops = {
+        .recalc         = fsidiv_recalc,
+        .round_rate     = fsidiv_round_rate,
+        .set_rate       = fsidiv_set_rate,
+        .enable         = fsidiv_enable,
+        .disable        = fsidiv_disable,
+};
+static struct clk_mapping sh7372_fsidiva_clk_mapping = {
+        .phys   = FSIDIVA,
+        .len    = 8,
+};
+struct clk sh7372_fsidiva_clk = {
+        .ops            = &fsidiv_clk_ops,
+        .parent         = &div6_reparent_clks[DIV6_FSIA], /* late install */
+        .mapping        = &sh7372_fsidiva_clk_mapping,
+};
+static struct clk_mapping sh7372_fsidivb_clk_mapping = {
+        .phys   = FSIDIVB,
+        .len    = 8,
+};
+struct clk sh7372_fsidivb_clk = {
+        .ops            = &fsidiv_clk_ops,
+        .parent         = &div6_reparent_clks[DIV6_FSIB],  /* late install */
+        .mapping        = &sh7372_fsidivb_clk_mapping,
+};
+static struct clk *late_main_clks[] = {
+        &sh7372_fsidiva_clk,
+        &sh7372_fsidivb_clk,
+};
 enum { MSTP001,
       MSTP131, MSTP130,
       MSTP129, MSTP128, MSTP127, MSTP126, MSTP125,
@@ -585,6 +684,9 @@ void __init sh7372_clock_init(void)
        if (!ret)
                ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
+        for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
+                ret = clk_register(late_main_clks[k]);
        clkdev_add_table(lookups, ARRAY_SIZE(lookups));
        if (!ret)
diff --git a/arch/arm/mach-shmobile/include/mach/gpio.h b/arch/arm/mach-shmobile/include/mach/gpio.h
index 5bc6bd444d72..2b1bb9e43dda 100644
--- a/arch/arm/mach-shmobile/include/mach/gpio.h
+++ b/arch/arm/mach-shmobile/include/mach/gpio.h
@@ -35,12 +35,12 @@ static inline int gpio_cansleep(unsigned gpio)
 static inline int gpio_to_irq(unsigned gpio)
 {
-        return -ENOSYS;
+        return __gpio_to_irq(gpio);
 }
 static inline int irq_to_gpio(unsigned int irq)
 {
-        return -EINVAL;
+        return -ENOSYS;
 }
 #endif /* CONFIG_GPIOLIB */
diff --git a/arch/arm/mach-shmobile/include/mach/sh7372.h b/arch/arm/mach-shmobile/include/mach/sh7372.h
index 147775a94bce..e4f9004e7103 100644
--- a/arch/arm/mach-shmobile/include/mach/sh7372.h
+++ b/arch/arm/mach-shmobile/include/mach/sh7372.h
@@ -464,5 +464,7 @@ extern struct clk sh7372_dv_clki_div2_clk;
 extern struct clk sh7372_pllc2_clk;
 extern struct clk sh7372_fsiack_clk;
 extern struct clk sh7372_fsibck_clk;
+extern struct clk sh7372_fsidiva_clk;
+extern struct clk sh7372_fsidivb_clk;
 #endif /* __ASM_SH7372_H__ */
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 5c075f562eba..7f217b3a50a8 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -193,6 +193,7 @@ config CPU_SH2
 config CPU_SH2A
        bool
        select CPU_SH2
+        select UNCACHED_MAPPING
 config CPU_SH3
        bool
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 307b3a4a790b..9c8c6e1a2a15 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -133,10 +133,7 @@ machdir-$(CONFIG_SOLUTION_ENGINE)		+= mach-se
 machdir-$(CONFIG_SH_HP6XX)                      += mach-hp6xx
 machdir-$(CONFIG_SH_DREAMCAST)                  += mach-dreamcast
 machdir-$(CONFIG_SH_SH03)                       += mach-sh03
-machdir-$(CONFIG_SH_SECUREEDGE5410)             += mach-snapgear
 machdir-$(CONFIG_SH_RTS7751R2D)                 += mach-r2d
-machdir-$(CONFIG_SH_7751_SYSTEMH)               += mach-systemh
-machdir-$(CONFIG_SH_EDOSK7705)                  += mach-edosk7705
 machdir-$(CONFIG_SH_HIGHLANDER)                 += mach-highlander
 machdir-$(CONFIG_SH_MIGOR)                      += mach-migor
 machdir-$(CONFIG_SH_AP325RXA)                   += mach-ap325rxa
diff --git a/arch/sh/boards/Kconfig b/arch/sh/boards/Kconfig
index 9c94711aa6ca..2018c7ea4c93 100644
--- a/arch/sh/boards/Kconfig
+++ b/arch/sh/boards/Kconfig
@@ -81,13 +81,6 @@ config SH_7343_SOLUTION_ENGINE
          Select 7343 SolutionEngine if configuring for a Hitachi
          SH7343 (SH-Mobile 3AS) evaluation board.
-config SH_7751_SYSTEMH
-        bool "SystemH7751R"
-        depends on CPU_SUBTYPE_SH7751R
-        help
-          Select SystemH if you are configuring for a Renesas SystemH
-          7751R evaluation board.
 config SH_HP6XX
        bool "HP6XX"
        select SYS_SUPPORTS_APM_EMULATION
diff --git a/arch/sh/boards/Makefile b/arch/sh/boards/Makefile
index 38ef655cc0f0..be7d11d04b26 100644
--- a/arch/sh/boards/Makefile
+++ b/arch/sh/boards/Makefile
@@ -2,10 +2,12 @@
 # Specific board support, not covered by a mach group.
 #
 obj-$(CONFIG_SH_MAGIC_PANEL_R2) += board-magicpanelr2.o
+obj-$(CONFIG_SH_SECUREEDGE5410) += board-secureedge5410.o
 obj-$(CONFIG_SH_SH2007)         += board-sh2007.o
 obj-$(CONFIG_SH_SH7785LCR)      += board-sh7785lcr.o
 obj-$(CONFIG_SH_URQUELL)        += board-urquell.o
 obj-$(CONFIG_SH_SHMIN)          += board-shmin.o
+obj-$(CONFIG_SH_EDOSK7705)      += board-edosk7705.o
 obj-$(CONFIG_SH_EDOSK7760)      += board-edosk7760.o
 obj-$(CONFIG_SH_ESPT)           += board-espt.o
 obj-$(CONFIG_SH_POLARIS)        += board-polaris.o
diff --git a/arch/sh/boards/board-edosk7705.c b/arch/sh/boards/board-edosk7705.c
new file mode 100644
index 000000000000..4cb3bb74c36f
--- /dev/null
+++ b/arch/sh/boards/board-edosk7705.c
@@ -0,0 +1,78 @@
+/*
+ * arch/sh/boards/renesas/edosk7705/setup.c
+ *
+ * Copyright (C) 2000  Kazumoto Kojima
+ *
+ * Hitachi SolutionEngine Support.
+ *
+ * Modified for edosk7705 development
+ * board by S. Dunn, 2003.
+ */
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/smc91x.h>
+#include <asm/machvec.h>
+#include <asm/sizes.h>
+#define SMC_IOBASE      0xA2000000
+#define SMC_IO_OFFSET   0x300
+#define SMC_IOADDR      (SMC_IOBASE + SMC_IO_OFFSET)
+#define ETHERNET_IRQ    0x09
+static void __init sh_edosk7705_init_irq(void)
+{
+        make_imask_irq(ETHERNET_IRQ);
+}
+/* eth initialization functions */
+static struct smc91x_platdata smc91x_info = {
+        .flags = SMC91X_USE_16BIT | SMC91X_IO_SHIFT_1 | IORESOURCE_IRQ_LOWLEVEL,
+};
+static struct resource smc91x_res[] = {
+        [0] = {
+                .start  = SMC_IOADDR,
+                .end    = SMC_IOADDR + SZ_32 - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = ETHERNET_IRQ,
+                .end    = ETHERNET_IRQ,
+                .flags  = IORESOURCE_IRQ ,
+        }
+};
+static struct platform_device smc91x_dev = {
+        .name           = "smc91x",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(smc91x_res),
+        .resource       = smc91x_res,
+        .dev    = {
+                .platform_data  = &smc91x_info,
+        },
+};
+/* platform init code */
+static struct platform_device *edosk7705_devices[] __initdata = {
+        &smc91x_dev,
+};
+static int __init init_edosk7705_devices(void)
+{
+        return platform_add_devices(edosk7705_devices,
+                                    ARRAY_SIZE(edosk7705_devices));
+}
+__initcall(init_edosk7705_devices);
+/*
+ * The Machine Vector
+ */
+static struct sh_machine_vector mv_edosk7705 __initmv = {
+        .mv_name                = "EDOSK7705",
+        .mv_nr_irqs             = 80,
+        .mv_init_irq            = sh_edosk7705_init_irq,
+};
diff --git a/arch/sh/boards/mach-snapgear/setup.c b/arch/sh/boards/board-secureedge5410.c
index 331745dee379..32f875e8493d 100644
--- a/arch/sh/boards/mach-snapgear/setup.c
+++ b/arch/sh/boards/board-secureedge5410.c
@@ -1,6 +1,4 @@
 /*
- * linux/arch/sh/boards/snapgear/setup.c
- *
 * Copyright (C) 2002  David McCullough <davidm@snapgear.com>
 * Copyright (C) 2003  Paul Mundt <lethal@linux-sh.org>
 *
@@ -19,18 +17,19 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <asm/machvec.h>
-#include <mach/snapgear.h>
+#include <mach/secureedge5410.h>
 #include <asm/irq.h>
 #include <asm/io.h>
 #include <cpu/timer.h>
+unsigned short secureedge5410_ioport;
 /*
 * EraseConfig handling functions
 */
 static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id)
 {
-        (void)__raw_readb(0xb8000000);  /* dummy read */
+        ctrl_delay();   /* dummy read */
        printk("SnapGear: erase switch interrupt!\n");
@@ -39,21 +38,22 @@ static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id)
 static int __init eraseconfig_init(void)
 {
+        unsigned int irq = evt2irq(0x240);
        printk("SnapGear: EraseConfig init\n");
        /* Setup "EraseConfig" switch on external IRQ 0 */
-        if (request_irq(IRL0_IRQ, eraseconfig_interrupt, IRQF_DISABLED,
+        if (request_irq(irq, eraseconfig_interrupt, IRQF_DISABLED,
                                "Erase Config", NULL))
                printk("SnapGear: failed to register IRQ%d for Reset witch\n",
-                                IRL0_IRQ);
+                                irq);
        else
                printk("SnapGear: registered EraseConfig switch on IRQ%d\n",
-                                IRL0_IRQ);
+                                irq);
-        return(0);
+        return 0;
 }
 module_init(eraseconfig_init);
-/****************************************************************************/
 /*
 * Initialize IRQ setting
 *
@@ -62,7 +62,6 @@ module_init(eraseconfig_init);
 * IRL2 = eth1
 * IRL3 = crypto
 */
 static void __init init_snapgear_IRQ(void)
 {
        printk("Setup SnapGear IRQ/IPR ...\n");
@@ -76,20 +75,5 @@ static void __init init_snapgear_IRQ(void)
 static struct sh_machine_vector mv_snapgear __initmv = {
        .mv_name                = "SnapGear SecureEdge5410",
        .mv_nr_irqs             = 72,
-        .mv_inb                 = snapgear_inb,
-        .mv_inw                 = snapgear_inw,
-        .mv_inl                 = snapgear_inl,
-        .mv_outb                = snapgear_outb,
-        .mv_outw                = snapgear_outw,
-        .mv_outl                = snapgear_outl,
-        .mv_inb_p               = snapgear_inb_p,
-        .mv_inw_p               = snapgear_inw,
-        .mv_inl_p               = snapgear_inl,
-        .mv_outb_p              = snapgear_outb_p,
-        .mv_outw_p              = snapgear_outw,
-        .mv_outl_p              = snapgear_outl,
        .mv_init_irq            = init_snapgear_IRQ,
 };
diff --git a/arch/sh/boards/mach-edosk7705/Makefile b/arch/sh/boards/mach-edosk7705/Makefile
deleted file mode 100644
index cd54acb51499..000000000000
--- a/arch/sh/boards/mach-edosk7705/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the EDOSK7705 specific parts of the kernel
-#
-obj-y    := setup.o io.o
diff --git a/arch/sh/boards/mach-edosk7705/io.c b/arch/sh/boards/mach-edosk7705/io.c
deleted file mode 100644
index 5b9c57c43241..000000000000
--- a/arch/sh/boards/mach-edosk7705/io.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * arch/sh/boards/renesas/edosk7705/io.c
- *
- * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
- * Based largely on io_se.c.
- *
- * I/O routines for Hitachi EDOSK7705 board.
- *
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/io.h>
-#include <mach/edosk7705.h>
-#include <asm/addrspace.h>
-#define SMC_IOADDR      0xA2000000
-/* Map the Ethernet addresses as if it is at 0x300 - 0x320 */
-static unsigned long sh_edosk7705_isa_port2addr(unsigned long port)
-{
-        /*
-         * SMC91C96 registers are 4 byte aligned rather than the
-         * usual 2 byte!
-         */
-        if (port >= 0x300 && port < 0x320)
-                return SMC_IOADDR + ((port - 0x300) * 2);
-        maybebadio(port);
-        return port;
-}
-/* Trying to read / write bytes on odd-byte boundaries to the Ethernet
- * registers causes problems. So we bit-shift the value and read / write
- * in 2 byte chunks. Setting the low byte to 0 does not cause problems
- * now as odd byte writes are only made on the bit mask / interrupt
- * register. This may not be the case in future Mar-2003 SJD
- */
-unsigned char sh_edosk7705_inb(unsigned long port)
-{
-        if (port >= 0x300 && port < 0x320 && port & 0x01)
-                return __raw_readw(port - 1) >> 8;
-        return __raw_readb(sh_edosk7705_isa_port2addr(port));
-}
-void sh_edosk7705_outb(unsigned char value, unsigned long port)
-{
-        if (port >= 0x300 && port < 0x320 && port & 0x01) {
-                __raw_writew(((unsigned short)value << 8), port - 1);
-                return;
-        }
-        __raw_writeb(value, sh_edosk7705_isa_port2addr(port));
-}
-void sh_edosk7705_insb(unsigned long port, void *addr, unsigned long count)
-{
-        unsigned char *p = addr;
-        while (count--)
-                *p++ = sh_edosk7705_inb(port);
-}
-void sh_edosk7705_outsb(unsigned long port, const void *addr, unsigned long count)
-{
-        unsigned char *p = (unsigned char *)addr;
-        while (count--)
-                sh_edosk7705_outb(*p++, port);
-}
diff --git a/arch/sh/boards/mach-edosk7705/setup.c b/arch/sh/boards/mach-edosk7705/setup.c
deleted file mode 100644
index d59225e26fb9..000000000000
--- a/arch/sh/boards/mach-edosk7705/setup.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * arch/sh/boards/renesas/edosk7705/setup.c
- *
- * Copyright (C) 2000  Kazumoto Kojima
- *
- * Hitachi SolutionEngine Support.
- *
- * Modified for edosk7705 development
- * board by S. Dunn, 2003.
- */
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <asm/machvec.h>
-#include <mach/edosk7705.h>
-static void __init sh_edosk7705_init_irq(void)
-{
-        /* This is the Ethernet interrupt */
-        make_imask_irq(0x09);
-}
-/*
- * The Machine Vector
- */
-static struct sh_machine_vector mv_edosk7705 __initmv = {
-        .mv_name                = "EDOSK7705",
-        .mv_nr_irqs             = 80,
-        .mv_inb                 = sh_edosk7705_inb,
-        .mv_outb                = sh_edosk7705_outb,
-        .mv_insb                = sh_edosk7705_insb,
-        .mv_outsb               = sh_edosk7705_outsb,
-        .mv_init_irq            = sh_edosk7705_init_irq,
-};
diff --git a/arch/sh/boards/mach-microdev/io.c b/arch/sh/boards/mach-microdev/io.c
index 2960c659020e..acdafb0c6404 100644
--- a/arch/sh/boards/mach-microdev/io.c
+++ b/arch/sh/boards/mach-microdev/io.c
@@ -54,7 +54,7 @@
 /*
 * map I/O ports to memory-mapped addresses
 */
-static unsigned long microdev_isa_port2addr(unsigned long offset)
+void __iomem *microdev_ioport_map(unsigned long offset, unsigned int len)
 {
        unsigned long result;
@@ -72,16 +72,6 @@ static unsigned long microdev_isa_port2addr(unsigned long offset)
                         *      Configuration Registers
                         */
                result = IO_SUPERIO_PHYS + (offset << 1);
-#if 0
-        } else if (offset == KBD_DATA_REG || offset == KBD_CNTL_REG ||
-                   offset == KBD_STATUS_REG) {
-                        /*
-                         *      SMSC FDC37C93xAPM SuperIO chip
-                         *
-                         *      PS/2 Keyboard + Mouse (ports 0x60 and 0x64).
-                         */
-                result = IO_SUPERIO_PHYS + (offset << 1);
-#endif
        } else if (((offset >= IO_IDE1_BASE) &&
                    (offset <  IO_IDE1_BASE + IO_IDE_EXTENT)) ||
                    (offset == IO_IDE1_MISC)) {
@@ -131,237 +121,5 @@ static unsigned long microdev_isa_port2addr(unsigned long offset)
                result = PVR;
        }
-        return result;
+        return (void __iomem *)result;
-}
-#define PORT2ADDR(x) (microdev_isa_port2addr(x))
-static inline void delay(void)
-{
-#if defined(CONFIG_PCI)
-        /* System board present, just make a dummy SRAM access.  (CS0 will be
-           mapped to PCI memory, probably good to avoid it.) */
-        __raw_readw(0xa6800000);
-#else
-        /* CS0 will be mapped to flash, ROM etc so safe to access it. */
-        __raw_readw(0xa0000000);
-#endif
-}
-unsigned char microdev_inb(unsigned long port)
-{
-#ifdef CONFIG_PCI
-        if (port >= PCIBIOS_MIN_IO)
-                return microdev_pci_inb(port);
-#endif
-        return *(volatile unsigned char*)PORT2ADDR(port);
-}
-unsigned short microdev_inw(unsigned long port)
-{
-#ifdef CONFIG_PCI
-        if (port >= PCIBIOS_MIN_IO)
-                return microdev_pci_inw(port);
-#endif
-        return *(volatile unsigned short*)PORT2ADDR(port);
-}
-unsigned int microdev_inl(unsigned long port)
-{
-#ifdef CONFIG_PCI
-        if (port >= PCIBIOS_MIN_IO)
-                return microdev_pci_inl(port);
-#endif
-        return *(volatile unsigned int*)PORT2ADDR(port);
-}
-void microdev_outw(unsigned short b, unsigned long port)
-{
-#ifdef CONFIG_PCI
-        if (port >= PCIBIOS_MIN_IO) {
-                microdev_pci_outw(b, port);
-                return;
-        }
-#endif
-        *(volatile unsigned short*)PORT2ADDR(port) = b;
-}
-void microdev_outb(unsigned char b, unsigned long port)
-{
-#ifdef CONFIG_PCI
-        if (port >= PCIBIOS_MIN_IO) {
-                microdev_pci_outb(b, port);
-                return;
-        }
-#endif
-        /*
-         *      There is a board feature with the current SH4-202 MicroDev in
-         *      that the 2 byte enables (nBE0 and nBE1) are tied together (and
-         *      to the Chip Select Line (Ethernet_CS)). Due to this connectivity,
-         *      it is not possible to safely perform 8-bit writes to the
-         *      Ethernet registers, as 16-bits will be consumed from the Data
-         *      lines (corrupting the other byte).  Hence, this function is
-         *      written to implement 16-bit read/modify/write for all byte-wide
-         *      accesses.
-         *
-         *      Note: there is no problem with byte READS (even or odd).
-         *
-         *                      Sean McGoogan - 16th June 2003.
-         */
-        if ((port >= IO_LAN91C111_BASE) &&
-            (port <  IO_LAN91C111_BASE + IO_LAN91C111_EXTENT)) {
-                        /*
-                         * Then are trying to perform a byte-write to the
-                         * LAN91C111.  This needs special care.
-                         */
-                if (port % 2 == 1) {    /* is the port odd ? */
-                        /* unset bit-0, i.e. make even */
-                        const unsigned long evenPort = port-1;
-                        unsigned short word;
-                        /*
-                         * do a 16-bit read/write to write to 'port',
-                         * preserving even byte.
-                         *
-                         *      Even addresses are bits 0-7
-                         *      Odd  addresses are bits 8-15
-                         */
-                        word = microdev_inw(evenPort);
-                        word = (word & 0xffu) | (b << 8);
-                        microdev_outw(word, evenPort);
-                } else {
-                        /* else, we are trying to do an even byte write */
-                        unsigned short word;
-                        /*
-                         * do a 16-bit read/write to write to 'port',
-                         * preserving odd byte.
-                         *
-                         *      Even addresses are bits 0-7
-                         *      Odd  addresses are bits 8-15
-                         */
-                        word = microdev_inw(port);
-                        word = (word & 0xff00u) | (b);
-                        microdev_outw(word, port);
-                }
-        } else {
-                *(volatile unsigned char*)PORT2ADDR(port) = b;
-        }
-}
-void microdev_outl(unsigned int b, unsigned long port)
-{
-#ifdef CONFIG_PCI
-        if (port >= PCIBIOS_MIN_IO) {
-                microdev_pci_outl(b, port);
-                return;
-        }
-#endif
-        *(volatile unsigned int*)PORT2ADDR(port) = b;
-}
-unsigned char microdev_inb_p(unsigned long port)
-{
-        unsigned char v = microdev_inb(port);
-        delay();
-        return v;
-}
-unsigned short microdev_inw_p(unsigned long port)
-{
-        unsigned short v = microdev_inw(port);
-        delay();
-        return v;
-}
-unsigned int microdev_inl_p(unsigned long port)
-{
-        unsigned int v = microdev_inl(port);
-        delay();
-        return v;
-}
-void microdev_outb_p(unsigned char b, unsigned long port)
-{
-        microdev_outb(b, port);
-        delay();
-}
-void microdev_outw_p(unsigned short b, unsigned long port)
-{
-        microdev_outw(b, port);
-        delay();
-}
-void microdev_outl_p(unsigned int b, unsigned long port)
-{
-        microdev_outl(b, port);
-        delay();
-}
-void microdev_insb(unsigned long port, void *buffer, unsigned long count)
-{
-        volatile unsigned char *port_addr;
-        unsigned char *buf = buffer;
-        port_addr = (volatile unsigned char *)PORT2ADDR(port);
-        while (count--)
-                *buf++ = *port_addr;
-}
-void microdev_insw(unsigned long port, void *buffer, unsigned long count)
-{
-        volatile unsigned short *port_addr;
-        unsigned short *buf = buffer;
-        port_addr = (volatile unsigned short *)PORT2ADDR(port);
-        while (count--)
-                *buf++ = *port_addr;
-}
-void microdev_insl(unsigned long port, void *buffer, unsigned long count)
-{
-        volatile unsigned long *port_addr;
-        unsigned int *buf = buffer;
-        port_addr = (volatile unsigned long *)PORT2ADDR(port);
-        while (count--)
-                *buf++ = *port_addr;
-}
-void microdev_outsb(unsigned long port, const void *buffer, unsigned long count)
-{
-        volatile unsigned char *port_addr;
-        const unsigned char *buf = buffer;
-        port_addr = (volatile unsigned char *)PORT2ADDR(port);
-        while (count--)
-                *port_addr = *buf++;
-}
-void microdev_outsw(unsigned long port, const void *buffer, unsigned long count)
-{
-        volatile unsigned short *port_addr;
-        const unsigned short *buf = buffer;
-        port_addr = (volatile unsigned short *)PORT2ADDR(port);
-        while (count--)
-                *port_addr = *buf++;
-}
-void microdev_outsl(unsigned long port, const void *buffer, unsigned long count)
-{
-        volatile unsigned long *port_addr;
-        const unsigned int *buf = buffer;
-        port_addr = (volatile unsigned long *)PORT2ADDR(port);
-        while (count--)
-                *port_addr = *buf++;
 }
diff --git a/arch/sh/boards/mach-microdev/setup.c b/arch/sh/boards/mach-microdev/setup.c
index d1df2a4fb9b8..d8a747291e03 100644
--- a/arch/sh/boards/mach-microdev/setup.c
+++ b/arch/sh/boards/mach-microdev/setup.c
@@ -195,27 +195,6 @@ device_initcall(microdev_devices_setup);
 static struct sh_machine_vector mv_sh4202_microdev __initmv = {
        .mv_name                = "SH4-202 MicroDev",
        .mv_nr_irqs             = 72,
+        .mv_ioport_map          = microdev_ioport_map,
-        .mv_inb                 = microdev_inb,
-        .mv_inw                 = microdev_inw,
-        .mv_inl                 = microdev_inl,
-        .mv_outb                = microdev_outb,
-        .mv_outw                = microdev_outw,
-        .mv_outl                = microdev_outl,
-        .mv_inb_p               = microdev_inb_p,
-        .mv_inw_p               = microdev_inw_p,
-        .mv_inl_p               = microdev_inl_p,
-        .mv_outb_p              = microdev_outb_p,
-        .mv_outw_p              = microdev_outw_p,
-        .mv_outl_p              = microdev_outl_p,
-        .mv_insb                = microdev_insb,
-        .mv_insw                = microdev_insw,
-        .mv_insl                = microdev_insl,
-        .mv_outsb               = microdev_outsb,
-        .mv_outsw               = microdev_outsw,
-        .mv_outsl               = microdev_outsl,
        .mv_init_irq            = init_microdev_irq,
 };
diff --git a/arch/sh/boards/mach-se/7206/Makefile b/arch/sh/boards/mach-se/7206/Makefile
index 63e7ed699f39..5c9eaa0535b9 100644
--- a/arch/sh/boards/mach-se/7206/Makefile
+++ b/arch/sh/boards/mach-se/7206/Makefile
@@ -2,4 +2,4 @@
 # Makefile for the 7206 SolutionEngine specific parts of the kernel
 #
-obj-y    := setup.o io.o irq.o
+obj-y    := setup.o irq.o
diff --git a/arch/sh/boards/mach-se/7206/io.c b/arch/sh/boards/mach-se/7206/io.c
deleted file mode 100644
index adadc77532ee..000000000000
--- a/arch/sh/boards/mach-se/7206/io.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/* $Id: io.c,v 1.5 2004/02/22 23:08:43 kkojima Exp $
- *
- * linux/arch/sh/boards/se/7206/io.c
- *
- * Copyright (C) 2006 Yoshinori Sato
- *
- * I/O routine for Hitachi 7206 SolutionEngine.
- *
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <asm/io.h>
-#include <mach-se/mach/se7206.h>
-static inline void delay(void)
-{
-        __raw_readw(0x20000000);  /* P2 ROM Area */
-}
-/* MS7750 requires special versions of in*, out* routines, since
-   PC-like io ports are located at upper half byte of 16-bit word which
-   can be accessed only with 16-bit wide.  */
-static inline volatile __u16 *
-port2adr(unsigned int port)
-{
-        if (port >= 0x2000 && port < 0x2020)
-                return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000));
-        else if (port >= 0x300 && port < 0x310)
-                return (volatile __u16 *) (PA_SMSC + (port - 0x300));
-        return (volatile __u16 *)port;
-}
-unsigned char se7206_inb(unsigned long port)
-{
-        return (*port2adr(port)) & 0xff;
-}
-unsigned char se7206_inb_p(unsigned long port)
-{
-        unsigned long v;
-        v = (*port2adr(port)) & 0xff;
-        delay();
-        return v;
-}
-unsigned short se7206_inw(unsigned long port)
-{
-        return *port2adr(port);
-}
-void se7206_outb(unsigned char value, unsigned long port)
-{
-        *(port2adr(port)) = value;
-}
-void se7206_outb_p(unsigned char value, unsigned long port)
-{
-        *(port2adr(port)) = value;
-        delay();
-}
-void se7206_outw(unsigned short value, unsigned long port)
-{
-        *port2adr(port) = value;
-}
-void se7206_insb(unsigned long port, void *addr, unsigned long count)
-{
-        volatile __u16 *p = port2adr(port);
-        __u8 *ap = addr;
-        while (count--)
-                *ap++ = *p;
-}
-void se7206_insw(unsigned long port, void *addr, unsigned long count)
-{
-        volatile __u16 *p = port2adr(port);
-        __u16 *ap = addr;
-        while (count--)
-                *ap++ = *p;
-}
-void se7206_outsb(unsigned long port, const void *addr, unsigned long count)
-{
-        volatile __u16 *p = port2adr(port);
-        const __u8 *ap = addr;
-        while (count--)
-                *p = *ap++;
-}
-void se7206_outsw(unsigned long port, const void *addr, unsigned long count)
-{
-        volatile __u16 *p = port2adr(port);
-        const __u16 *ap = addr;
-        while (count--)
-                *p = *ap++;
-}
diff --git a/arch/sh/boards/mach-se/7206/irq.c b/arch/sh/boards/mach-se/7206/irq.c
index 883b21eacaa6..d961949600fd 100644
--- a/arch/sh/boards/mach-se/7206/irq.c
+++ b/arch/sh/boards/mach-se/7206/irq.c
@@ -139,11 +139,13 @@ void __init init_se7206_IRQ(void)
        make_se7206_irq(IRQ0_IRQ); /* SMC91C111 */
        make_se7206_irq(IRQ1_IRQ); /* ATA */
        make_se7206_irq(IRQ3_IRQ); /* SLOT / PCM */
-        __raw_writew(inw(INTC_ICR1) | 0x000b ,INTC_ICR1 ) ; /* ICR1 */
+        __raw_writew(__raw_readw(INTC_ICR1) | 0x000b, INTC_ICR); /* ICR1 */
        /* FPGA System register setup*/
        __raw_writew(0x0000,INTSTS0); /* Clear INTSTS0 */
        __raw_writew(0x0000,INTSTS1); /* Clear INTSTS1 */
        /* IRQ0=LAN, IRQ1=ATA, IRQ3=SLT,PCM */
        __raw_writew(0x0001,INTSEL);
 }
diff --git a/arch/sh/boards/mach-se/7206/setup.c b/arch/sh/boards/mach-se/7206/setup.c
index 8f5c65d43d1d..7f4871c71a01 100644
--- a/arch/sh/boards/mach-se/7206/setup.c
+++ b/arch/sh/boards/mach-se/7206/setup.c
@@ -86,20 +86,5 @@ __initcall(se7206_devices_setup);
 static struct sh_machine_vector mv_se __initmv = {
        .mv_name                = "SolutionEngine",
        .mv_nr_irqs             = 256,
-        .mv_inb                 = se7206_inb,
-        .mv_inw                 = se7206_inw,
-        .mv_outb                = se7206_outb,
-        .mv_outw                = se7206_outw,
-        .mv_inb_p               = se7206_inb_p,
-        .mv_inw_p               = se7206_inw,
-        .mv_outb_p              = se7206_outb_p,
-        .mv_outw_p              = se7206_outw,
-        .mv_insb                = se7206_insb,
-        .mv_insw                = se7206_insw,
-        .mv_outsb               = se7206_outsb,
-        .mv_outsw               = se7206_outsw,
        .mv_init_irq            = init_se7206_IRQ,
 };
diff --git a/arch/sh/boards/mach-se/770x/Makefile b/arch/sh/boards/mach-se/770x/Makefile
index 8e624b06d5ea..43ea14feef51 100644
--- a/arch/sh/boards/mach-se/770x/Makefile
+++ b/arch/sh/boards/mach-se/770x/Makefile
@@ -2,4 +2,4 @@
 # Makefile for the 770x SolutionEngine specific parts of the kernel
 #
-obj-y    := setup.o io.o irq.o
+obj-y    := setup.o irq.o
diff --git a/arch/sh/boards/mach-se/770x/io.c b/arch/sh/boards/mach-se/770x/io.c
deleted file mode 100644
index 28833c8786ea..000000000000
--- a/arch/sh/boards/mach-se/770x/io.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Copyright (C) 2000  Kazumoto Kojima
- *
- * I/O routine for Hitachi SolutionEngine.
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <asm/io.h>
-#include <mach-se/mach/se.h>
-/* MS7750 requires special versions of in*, out* routines, since
-   PC-like io ports are located at upper half byte of 16-bit word which
-   can be accessed only with 16-bit wide.  */
-static inline volatile __u16 *
-port2adr(unsigned int port)
-{
-        if (port & 0xff000000)
-                return ( volatile __u16 *) port;
-        if (port >= 0x2000)
-                return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000));
-        else if (port >= 0x1000)
-                return (volatile __u16 *) (PA_83902 + (port << 1));
-        else
-                return (volatile __u16 *) (PA_SUPERIO + (port << 1));
-}
-static inline int
-shifted_port(unsigned long port)
-{
-        /* For IDE registers, value is not shifted */
-        if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
-                return 0;
-        else
-                return 1;
-}
-unsigned char se_inb(unsigned long port)
-{
-        if (shifted_port(port))
-                return (*port2adr(port) >> 8);
-        else
-                return (*port2adr(port))&0xff;
-}
-unsigned char se_inb_p(unsigned long port)
-{
-        unsigned long v;
-        if (shifted_port(port))
-                v = (*port2adr(port) >> 8);
-        else
-                v = (*port2adr(port))&0xff;
-        ctrl_delay();
-        return v;
-}
-unsigned short se_inw(unsigned long port)
-{
-        if (port >= 0x2000)
-                return *port2adr(port);
-        else
-                maybebadio(port);
-        return 0;
-}
-unsigned int se_inl(unsigned long port)
-{
-        maybebadio(port);
-        return 0;
-}
-void se_outb(unsigned char value, unsigned long port)
-{
-        if (shifted_port(port))
-                *(port2adr(port)) = value << 8;
-        else
-                *(port2adr(port)) = value;
-}
-void se_outb_p(unsigned char value, unsigned long port)
-{
-        if (shifted_port(port))
-                *(port2adr(port)) = value << 8;
-        else
-                *(port2adr(port)) = value;
-        ctrl_delay();
-}
-void se_outw(unsigned short value, unsigned long port)
-{
-        if (port >= 0x2000)
-                *port2adr(port) = value;
-        else
-                maybebadio(port);
-}
-void se_outl(unsigned int value, unsigned long port)
-{
-        maybebadio(port);
-}
-void se_insb(unsigned long port, void *addr, unsigned long count)
-{
-        volatile __u16 *p = port2adr(port);
-        __u8 *ap = addr;
-        if (shifted_port(port)) {
-                while (count--)
-                        *ap++ = *p >> 8;
-        } else {
-                while (count--)
-                        *ap++ = *p;
-        }
-}
-void se_insw(unsigned long port, void *addr, unsigned long count)
-{
-        volatile __u16 *p = port2adr(port);
-        __u16 *ap = addr;
-        while (count--)
-                *ap++ = *p;
-}
-void se_insl(unsigned long port, void *addr, unsigned long count)
-{
-        maybebadio(port);
-}
-void se_outsb(unsigned long port, const void *addr, unsigned long count)
-{
-        volatile __u16 *p = port2adr(port);
-        const __u8 *ap = addr;
-        if (shifted_port(port)) {
-                while (count--)
-                        *p = *ap++ << 8;
-        } else {
-                while (count--)
-                        *p = *ap++;
-        }
-}
-void se_outsw(unsigned long port, const void *addr, unsigned long count)
-{
-        volatile __u16 *p = port2adr(port);
-        const __u16 *ap = addr;
-        while (count--)
-                *p = *ap++;
-}
-void se_outsl(unsigned long port, const void *addr, unsigned long count)
-{
-        maybebadio(port);
-}
diff --git a/arch/sh/boards/mach-se/770x/setup.c b/arch/sh/boards/mach-se/770x/setup.c
index 66d39d1b0901..31330c65c0ce 100644
--- a/arch/sh/boards/mach-se/770x/setup.c
+++ b/arch/sh/boards/mach-se/770x/setup.c
@@ -195,27 +195,5 @@ static struct sh_machine_vector mv_se __initmv = {
 #elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
        .mv_nr_irqs             = 104,
 #endif
-        .mv_inb                 = se_inb,
-        .mv_inw                 = se_inw,
-        .mv_inl                 = se_inl,
-        .mv_outb                = se_outb,
-        .mv_outw                = se_outw,
-        .mv_outl                = se_outl,
-        .mv_inb_p               = se_inb_p,
-        .mv_inw_p               = se_inw,
-        .mv_inl_p               = se_inl,
-        .mv_outb_p              = se_outb_p,
-        .mv_outw_p              = se_outw,
-        .mv_outl_p              = se_outl,
-        .mv_insb                = se_insb,
-        .mv_insw                = se_insw,
-        .mv_insl                = se_insl,
-        .mv_outsb               = se_outsb,
-        .mv_outsw               = se_outsw,
-        .mv_outsl               = se_outsl,
        .mv_init_irq            = init_se_IRQ,
 };
diff --git a/arch/sh/boards/mach-se/7751/Makefile b/arch/sh/boards/mach-se/7751/Makefile
index e6f4341bfe6e..a338fd9d5039 100644
--- a/arch/sh/boards/mach-se/7751/Makefile
+++ b/arch/sh/boards/mach-se/7751/Makefile
@@ -2,4 +2,4 @@
 # Makefile for the 7751 SolutionEngine specific parts of the kernel
 #
-obj-y    := setup.o io.o irq.o
+obj-y    := setup.o irq.o
diff --git a/arch/sh/boards/mach-se/7751/io.c b/arch/sh/boards/mach-se/7751/io.c
deleted file mode 100644
index 6e75bd4459e5..000000000000
--- a/arch/sh/boards/mach-se/7751/io.c
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
- * Based largely on io_se.c.
- *
- * I/O routine for Hitachi 7751 SolutionEngine.
- *
- * Initial version only to support LAN access; some
- * placeholder code from io_se.c left in with the
- * expectation of later SuperIO and PCMCIA access.
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <asm/io.h>
-#include <mach-se/mach/se7751.h>
-#include <asm/addrspace.h>
-static inline volatile u16 *port2adr(unsigned int port)
-{
-        if (port >= 0x2000)
-                return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000));
-        maybebadio((unsigned long)port);
-        return (volatile __u16*)port;
-}
-/*
- * General outline: remap really low stuff [eventually] to SuperIO,
- * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
- * is mapped through the PCI IO window.  Stuff with high bits (PXSEG)
- * should be way beyond the window, and is used  w/o translation for
- * compatibility.
- */
-unsigned char sh7751se_inb(unsigned long port)
-{
-        if (PXSEG(port))
-                return *(volatile unsigned char *)port;
-        else
-                return (*port2adr(port)) & 0xff;
-}
-unsigned char sh7751se_inb_p(unsigned long port)
-{
-        unsigned char v;
-        if (PXSEG(port))
-                v = *(volatile unsigned char *)port;
-        else
-                v = (*port2adr(port)) & 0xff;
-        ctrl_delay();
-        return v;
-}
-unsigned short sh7751se_inw(unsigned long port)
-{
-        if (PXSEG(port))
-                return *(volatile unsigned short *)port;
-        else if (port >= 0x2000)
-                return *port2adr(port);
-        else
-                maybebadio(port);
-        return 0;
-}
-unsigned int sh7751se_inl(unsigned long port)
-{
-        if (PXSEG(port))
-                return *(volatile unsigned long *)port;
-        else if (port >= 0x2000)
-                return *port2adr(port);
-        else
-                maybebadio(port);
-        return 0;
-}
-void sh7751se_outb(unsigned char value, unsigned long port)
-{
-        if (PXSEG(port))
-                *(volatile unsigned char *)port = value;
-        else
-                *(port2adr(port)) = value;
-}
-void sh7751se_outb_p(unsigned char value, unsigned long port)
-{
-        if (PXSEG(port))
-                *(volatile unsigned char *)port = value;
-        else
-                *(port2adr(port)) = value;
-        ctrl_delay();
-}
-void sh7751se_outw(unsigned short value, unsigned long port)
-{
-        if (PXSEG(port))
-                *(volatile unsigned short *)port = value;
-        else if (port >= 0x2000)
-                *port2adr(port) = value;
-        else
-                maybebadio(port);
-}
-void sh7751se_outl(unsigned int value, unsigned long port)
-{
-        if (PXSEG(port))
-                *(volatile unsigned long *)port = value;
-        else
-                maybebadio(port);
-}
-void sh7751se_insl(unsigned long port, void *addr, unsigned long count)
-{
-        maybebadio(port);
-}
-void sh7751se_outsl(unsigned long port, const void *addr, unsigned long count)
-{
-        maybebadio(port);
-}
diff --git a/arch/sh/boards/mach-se/7751/setup.c b/arch/sh/boards/mach-se/7751/setup.c
index 50572512e3e8..9fbc51beb181 100644
--- a/arch/sh/boards/mach-se/7751/setup.c
+++ b/arch/sh/boards/mach-se/7751/setup.c
@@ -56,23 +56,5 @@ __initcall(se7751_devices_setup);
 static struct sh_machine_vector mv_7751se __initmv = {
        .mv_name                = "7751 SolutionEngine",
        .mv_nr_irqs             = 72,
-        .mv_inb                 = sh7751se_inb,
-        .mv_inw                 = sh7751se_inw,
-        .mv_inl                 = sh7751se_inl,
-        .mv_outb                = sh7751se_outb,
-        .mv_outw                = sh7751se_outw,
-        .mv_outl                = sh7751se_outl,
-        .mv_inb_p               = sh7751se_inb_p,
-        .mv_inw_p               = sh7751se_inw,
-        .mv_inl_p               = sh7751se_inl,
-        .mv_outb_p              = sh7751se_outb_p,
-        .mv_outw_p              = sh7751se_outw,
-        .mv_outl_p              = sh7751se_outl,
-        .mv_insl                = sh7751se_insl,
-        .mv_outsl               = sh7751se_outsl,
        .mv_init_irq            = init_7751se_IRQ,
 };
diff --git a/arch/sh/boards/mach-snapgear/Makefile b/arch/sh/boards/mach-snapgear/Makefile
deleted file mode 100644
index d2d2f4b6a502..000000000000
--- a/arch/sh/boards/mach-snapgear/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the SnapGear specific parts of the kernel
-#
-obj-y    := setup.o io.o
diff --git a/arch/sh/boards/mach-snapgear/io.c b/arch/sh/boards/mach-snapgear/io.c
deleted file mode 100644
index 476650e42dbc..000000000000
--- a/arch/sh/boards/mach-snapgear/io.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * Copyright (C) 2002  David McCullough <davidm@snapgear.com>
- * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
- * Based largely on io_se.c.
- *
- * I/O routine for Hitachi 7751 SolutionEngine.
- *
- * Initial version only to support LAN access; some
- * placeholder code from io_se.c left in with the
- * expectation of later SuperIO and PCMCIA access.
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <asm/io.h>
-#include <asm/addrspace.h>
-#ifdef CONFIG_SH_SECUREEDGE5410
-unsigned short secureedge5410_ioport;
-#endif
-static inline volatile __u16 *port2adr(unsigned int port)
-{
-        maybebadio((unsigned long)port);
-        return (volatile __u16*)port;
-}
-/*
- * General outline: remap really low stuff [eventually] to SuperIO,
- * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
- * is mapped through the PCI IO window.  Stuff with high bits (PXSEG)
- * should be way beyond the window, and is used  w/o translation for
- * compatibility.
- */
-unsigned char snapgear_inb(unsigned long port)
-{
-        if (PXSEG(port))
-                return *(volatile unsigned char *)port;
-        else
-                return (*port2adr(port)) & 0xff;
-}
-unsigned char snapgear_inb_p(unsigned long port)
-{
-        unsigned char v;
-        if (PXSEG(port))
-                v = *(volatile unsigned char *)port;
-        else
-                v = (*port2adr(port))&0xff;
-        ctrl_delay();
-        return v;
-}
-unsigned short snapgear_inw(unsigned long port)
-{
-        if (PXSEG(port))
-                return *(volatile unsigned short *)port;
-        else if (port >= 0x2000)
-                return *port2adr(port);
-        else
-                maybebadio(port);
-        return 0;
-}
-unsigned int snapgear_inl(unsigned long port)
-{
-        if (PXSEG(port))
-                return *(volatile unsigned long *)port;
-        else if (port >= 0x2000)
-                return *port2adr(port);
-        else
-                maybebadio(port);
-        return 0;
-}
-void snapgear_outb(unsigned char value, unsigned long port)
-{
-        if (PXSEG(port))
-                *(volatile unsigned char *)port = value;
-        else
-                *(port2adr(port)) = value;
-}
-void snapgear_outb_p(unsigned char value, unsigned long port)
-{
-        if (PXSEG(port))
-                *(volatile unsigned char *)port = value;
-        else
-                *(port2adr(port)) = value;
-        ctrl_delay();
-}
-void snapgear_outw(unsigned short value, unsigned long port)
-{
-        if (PXSEG(port))
-                *(volatile unsigned short *)port = value;
-        else if (port >= 0x2000)
-                *port2adr(port) = value;
-        else
-                maybebadio(port);
-}
-void snapgear_outl(unsigned int value, unsigned long port)
-{
-        if (PXSEG(port))
-                *(volatile unsigned long *)port = value;
-        else
-                maybebadio(port);
-}
-void snapgear_insl(unsigned long port, void *addr, unsigned long count)
-{
-        maybebadio(port);
-}
-void snapgear_outsl(unsigned long port, const void *addr, unsigned long count)
-{
-        maybebadio(port);
-}
diff --git a/arch/sh/boards/mach-systemh/Makefile b/arch/sh/boards/mach-systemh/Makefile
deleted file mode 100644
index 2cc6a23d9d39..000000000000
--- a/arch/sh/boards/mach-systemh/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# Makefile for the SystemH specific parts of the kernel
-#
-obj-y    := setup.o irq.o io.o
-# XXX: This wants to be consolidated in arch/sh/drivers/pci, and more
-# importantly, with the generic sh7751_pcic_init() code. For now, we'll
-# just abuse the hell out of kbuild, because we can..
-obj-$(CONFIG_PCI) += pci.o
-pci-y := ../../se/7751/pci.o
diff --git a/arch/sh/boards/mach-systemh/io.c b/arch/sh/boards/mach-systemh/io.c
deleted file mode 100644
index 15577ff1f715..000000000000
--- a/arch/sh/boards/mach-systemh/io.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * linux/arch/sh/boards/renesas/systemh/io.c
- *
- * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
- * Based largely on io_se.c.
- *
- * I/O routine for Hitachi 7751 Systemh.
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <mach/systemh7751.h>
-#include <asm/addrspace.h>
-#include <asm/io.h>
-#define ETHER_IOMAP(adr) (0xB3000000 + (adr)) /*map to 16bits access area
-                                                of smc lan chip*/
-static inline volatile __u16 *
-port2adr(unsigned int port)
-{
-        if (port >= 0x2000)
-                return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000));
-        maybebadio((unsigned long)port);
-        return (volatile __u16*)port;
-}
-/*
- * General outline: remap really low stuff [eventually] to SuperIO,
- * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
- * is mapped through the PCI IO window.  Stuff with high bits (PXSEG)
- * should be way beyond the window, and is used  w/o translation for
- * compatibility.
- */
-unsigned char sh7751systemh_inb(unsigned long port)
-{
-        if (PXSEG(port))
-                return *(volatile unsigned char *)port;
-        else if (port <= 0x3F1)
-                return *(volatile unsigned char *)ETHER_IOMAP(port);
-        else
-                return (*port2adr(port))&0xff;
-}
-unsigned char sh7751systemh_inb_p(unsigned long port)
-{
-        unsigned char v;
-        if (PXSEG(port))
-                v = *(volatile unsigned char *)port;
-        else if (port <= 0x3F1)
-                v = *(volatile unsigned char *)ETHER_IOMAP(port);
-        else
-                v = (*port2adr(port))&0xff;
-        ctrl_delay();
-        return v;
-}
-unsigned short sh7751systemh_inw(unsigned long port)
-{
-        if (PXSEG(port))
-                return *(volatile unsigned short *)port;
-        else if (port >= 0x2000)
-                return *port2adr(port);
-        else if (port <= 0x3F1)
-                return *(volatile unsigned int *)ETHER_IOMAP(port);
-        else
-                maybebadio(port);
-        return 0;
-}
-unsigned int sh7751systemh_inl(unsigned long port)
-{
-        if (PXSEG(port))
-                return *(volatile unsigned long *)port;
-        else if (port >= 0x2000)
-                return *port2adr(port);
-        else if (port <= 0x3F1)
-                return *(volatile unsigned int *)ETHER_IOMAP(port);
-        else
-                maybebadio(port);
-        return 0;
-}
-void sh7751systemh_outb(unsigned char value, unsigned long port)
-{
-        if (PXSEG(port))
-                *(volatile unsigned char *)port = value;
-        else if (port <= 0x3F1)
-                *(volatile unsigned char *)ETHER_IOMAP(port) = value;
-        else
-                *(port2adr(port)) = value;
-}
-void sh7751systemh_outb_p(unsigned char value, unsigned long port)
-{
-        if (PXSEG(port))
-                *(volatile unsigned char *)port = value;
-        else if (port <= 0x3F1)
-                *(volatile unsigned char *)ETHER_IOMAP(port) = value;
-        else
-                *(port2adr(port)) = value;
-        ctrl_delay();
-}
-void sh7751systemh_outw(unsigned short value, unsigned long port)
-{
-        if (PXSEG(port))
-                *(volatile unsigned short *)port = value;
-        else if (port >= 0x2000)
-                *port2adr(port) = value;
-        else if (port <= 0x3F1)
-                *(volatile unsigned short *)ETHER_IOMAP(port) = value;
-        else
-                maybebadio(port);
-}
-void sh7751systemh_outl(unsigned int value, unsigned long port)
-{
-        if (PXSEG(port))
-                *(volatile unsigned long *)port = value;
-        else
-                maybebadio(port);
-}
-void sh7751systemh_insb(unsigned long port, void *addr, unsigned long count)
-{
-        unsigned char *p = addr;
-        while (count--) *p++ = sh7751systemh_inb(port);
-}
-void sh7751systemh_insw(unsigned long port, void *addr, unsigned long count)
-{
-        unsigned short *p = addr;
-        while (count--) *p++ = sh7751systemh_inw(port);
-}
-void sh7751systemh_insl(unsigned long port, void *addr, unsigned long count)
-{
-        maybebadio(port);
-}
-void sh7751systemh_outsb(unsigned long port, const void *addr, unsigned long count)
-{
-        unsigned char *p = (unsigned char*)addr;
-        while (count--) sh7751systemh_outb(*p++, port);
-}
-void sh7751systemh_outsw(unsigned long port, const void *addr, unsigned long count)
-{
-        unsigned short *p = (unsigned short*)addr;
-        while (count--) sh7751systemh_outw(*p++, port);
-}
-void sh7751systemh_outsl(unsigned long port, const void *addr, unsigned long count)
-{
-        maybebadio(port);
-}
diff --git a/arch/sh/boards/mach-systemh/irq.c b/arch/sh/boards/mach-systemh/irq.c
deleted file mode 100644
index e5ee13adeff4..000000000000
--- a/arch/sh/boards/mach-systemh/irq.c
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * linux/arch/sh/boards/renesas/systemh/irq.c
- *
- * Copyright (C) 2000  Kazumoto Kojima
- *
- * Hitachi SystemH Support.
- *
- * Modified for 7751 SystemH by
- * Jonathan Short.
- */
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <mach/systemh7751.h>
-#include <asm/smc37c93x.h>
-/* address of external interrupt mask register
- * address must be set prior to use these (maybe in init_XXX_irq())
- * XXX : is it better to use .config than specifying it in code? */
-static unsigned long *systemh_irq_mask_register = (unsigned long *)0xB3F10004;
-static unsigned long *systemh_irq_request_register = (unsigned long *)0xB3F10000;
-static void disable_systemh_irq(struct irq_data *data)
-{
-        unsigned long val, mask = 0x01 << 1;
-        /* Clear the "irq"th bit in the mask and set it in the request */
-        val = __raw_readl((unsigned long)systemh_irq_mask_register);
-        val &= ~mask;
-        __raw_writel(val, (unsigned long)systemh_irq_mask_register);
-        val = __raw_readl((unsigned long)systemh_irq_request_register);
-        val |= mask;
-        __raw_writel(val, (unsigned long)systemh_irq_request_register);
-}
-static void enable_systemh_irq(struct irq_data *data)
-{
-        unsigned long val, mask = 0x01 << 1;
-        /* Set "irq"th bit in the mask register */
-        val = __raw_readl((unsigned long)systemh_irq_mask_register);
-        val |= mask;
-        __raw_writel(val, (unsigned long)systemh_irq_mask_register);
-}
-static struct irq_chip systemh_irq_type = {
-        .name           = "SystemH Register",
-        .irq_unmask     = enable_systemh_irq,
-        .irq_mask       = disable_systemh_irq,
-};
-void make_systemh_irq(unsigned int irq)
-{
-        disable_irq_nosync(irq);
-        set_irq_chip_and_handler(irq, &systemh_irq_type, handle_level_irq);
-        disable_systemh_irq(irq_get_irq_data(irq));
-}
diff --git a/arch/sh/boards/mach-systemh/setup.c b/arch/sh/boards/mach-systemh/setup.c
deleted file mode 100644
index 219fd800a43f..000000000000
--- a/arch/sh/boards/mach-systemh/setup.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * linux/arch/sh/boards/renesas/systemh/setup.c
- *
- * Copyright (C) 2000  Kazumoto Kojima
- * Copyright (C) 2003  Paul Mundt
- *
- * Hitachi SystemH Support.
- *
- * Modified for 7751 SystemH by Jonathan Short.
- *
- * Rewritten for 2.6 by Paul Mundt.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <asm/machvec.h>
-#include <mach/systemh7751.h>
-extern void make_systemh_irq(unsigned int irq);
-/*
- * Initialize IRQ setting
- */
-static void __init sh7751systemh_init_irq(void)
-{
-        make_systemh_irq(0xb);  /* Ethernet interrupt */
-}
-static struct sh_machine_vector mv_7751systemh __initmv = {
-        .mv_name                = "7751 SystemH",
-        .mv_nr_irqs             = 72,
-        .mv_inb                 = sh7751systemh_inb,
-        .mv_inw                 = sh7751systemh_inw,
-        .mv_inl                 = sh7751systemh_inl,
-        .mv_outb                = sh7751systemh_outb,
-        .mv_outw                = sh7751systemh_outw,
-        .mv_outl                = sh7751systemh_outl,
-        .mv_inb_p               = sh7751systemh_inb_p,
-        .mv_inw_p               = sh7751systemh_inw,
-        .mv_inl_p               = sh7751systemh_inl,
-        .mv_outb_p              = sh7751systemh_outb_p,
-        .mv_outw_p              = sh7751systemh_outw,
-        .mv_outl_p              = sh7751systemh_outl,
-        .mv_insb                = sh7751systemh_insb,
-        .mv_insw                = sh7751systemh_insw,
-        .mv_insl                = sh7751systemh_insl,
-        .mv_outsb               = sh7751systemh_outsb,
-        .mv_outsw               = sh7751systemh_outsw,
-        .mv_outsl               = sh7751systemh_outsl,
-        .mv_init_irq            = sh7751systemh_init_irq,
-};
diff --git a/arch/sh/configs/snapgear_defconfig b/arch/sh/configs/secureedge5410_defconfig
index 7eae4e59d7f0..7eae4e59d7f0 100644
--- a/arch/sh/configs/snapgear_defconfig
+++ b/arch/sh/configs/secureedge5410_defconfig
diff --git a/arch/sh/configs/systemh_defconfig b/arch/sh/configs/systemh_defconfig
deleted file mode 100644
index b58dfc505efe..000000000000
--- a/arch/sh/configs/systemh_defconfig
+++ /dev/null
@@ -1,28 +0,0 @@
-CONFIG_EXPERIMENTAL=y
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_BLK_DEV_INITRD=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-# CONFIG_SYSCTL_SYSCALL is not set
-# CONFIG_HOTPLUG is not set
-CONFIG_SLAB=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_BLK_DEV_BSG is not set
-CONFIG_CPU_SUBTYPE_SH7751R=y
-CONFIG_MEMORY_START=0x0c000000
-CONFIG_MEMORY_SIZE=0x00400000
-CONFIG_FLATMEM_MANUAL=y
-CONFIG_SH_7751_SYSTEMH=y
-CONFIG_PREEMPT=y
-# CONFIG_STANDALONE is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=1024
-# CONFIG_INPUT is not set
-# CONFIG_SERIO_SERPORT is not set
-# CONFIG_VT is not set
-CONFIG_HW_RANDOM=y
-CONFIG_PROC_KCORE=y
-CONFIG_TMPFS=y
-CONFIG_CRAMFS=y
-CONFIG_ROMFS_FS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
diff --git a/arch/sh/include/asm/addrspace.h b/arch/sh/include/asm/addrspace.h
index 446b3831c214..3d1ae2bfaa6f 100644
--- a/arch/sh/include/asm/addrspace.h
+++ b/arch/sh/include/asm/addrspace.h
@@ -44,10 +44,10 @@
 /*
 * These will never work in 32-bit, don't even bother.
 */
-#define P1SEGADDR(a)    __futile_remapping_attempt
+#define P1SEGADDR(a)    ({ (void)(a); BUG(); NULL; })
-#define P2SEGADDR(a)    __futile_remapping_attempt
+#define P2SEGADDR(a)    ({ (void)(a); BUG(); NULL; })
-#define P3SEGADDR(a)    __futile_remapping_attempt
+#define P3SEGADDR(a)    ({ (void)(a); BUG(); NULL; })
-#define P4SEGADDR(a)    __futile_remapping_attempt
+#define P4SEGADDR(a)    ({ (void)(a); BUG(); NULL; })
 #endif
 #endif /* P1SEG */
diff --git a/arch/sh/include/asm/pgtable.h b/arch/sh/include/asm/pgtable.h
index a15f1058bbf4..083ea068e819 100644
--- a/arch/sh/include/asm/pgtable.h
+++ b/arch/sh/include/asm/pgtable.h
@@ -66,7 +66,6 @@ static inline unsigned long long neff_sign_extend(unsigned long val)
 #define PHYS_ADDR_MASK29                0x1fffffff
 #define PHYS_ADDR_MASK32                0xffffffff
-#ifdef CONFIG_PMB
 static inline unsigned long phys_addr_mask(void)
 {
        /* Is the MMU in 29bit mode? */
@@ -75,17 +74,6 @@ static inline unsigned long phys_addr_mask(void)
        return PHYS_ADDR_MASK32;
 }
-#elif defined(CONFIG_32BIT)
-static inline unsigned long phys_addr_mask(void)
-{
-        return PHYS_ADDR_MASK32;
-}
-#else
-static inline unsigned long phys_addr_mask(void)
-{
-        return PHYS_ADDR_MASK29;
-}
-#endif
 #define PTE_PHYS_MASK           (phys_addr_mask() & PAGE_MASK)
 #define PTE_FLAGS_MASK          (~(PTE_PHYS_MASK) << PAGE_SHIFT)
diff --git a/arch/sh/include/asm/system.h b/arch/sh/include/asm/system.h
index 1f1af5afff03..10c8b1823a18 100644
--- a/arch/sh/include/asm/system.h
+++ b/arch/sh/include/asm/system.h
@@ -10,6 +10,7 @@
 #include <linux/compiler.h>
 #include <linux/linkage.h>
 #include <asm/types.h>
+#include <asm/uncached.h>
 #define AT_VECTOR_SIZE_ARCH 5 /* entries in ARCH_DLINFO */
@@ -137,9 +138,6 @@ extern unsigned int instruction_size(unsigned int insn);
 #define instruction_size(insn)  (4)
 #endif
-extern unsigned long cached_to_uncached;
-extern unsigned long uncached_size;
 void per_cpu_trap_init(void);
 void default_idle(void);
 void cpu_idle_wait(void);
diff --git a/arch/sh/include/asm/system_32.h b/arch/sh/include/asm/system_32.h
index c941b2739405..a4ad1cd9bc4d 100644
--- a/arch/sh/include/asm/system_32.h
+++ b/arch/sh/include/asm/system_32.h
@@ -145,42 +145,6 @@ do {								\
                __restore_dsp(prev);                            \
 } while (0)
-/*
- * Jump to uncached area.
- * When handling TLB or caches, we need to do it from an uncached area.
- */
-#define jump_to_uncached()                      \
-do {                                            \
-        unsigned long __dummy;                  \
-                                                \
-        __asm__ __volatile__(                   \
-                "mova   1f, %0\n\t"             \
-                "add    %1, %0\n\t"             \
-                "jmp    @%0\n\t"                \
-                " nop\n\t"                      \
-                ".balign 4\n"                   \
-                "1:"                            \
-                : "=&z" (__dummy)               \
-                : "r" (cached_to_uncached));    \
-} while (0)
-/*
- * Back to cached area.
- */
-#define back_to_cached()                                \
-do {                                                    \
-        unsigned long __dummy;                          \
-        ctrl_barrier();                                 \
-        __asm__ __volatile__(                           \
-                "mov.l  1f, %0\n\t"                     \
-                "jmp    @%0\n\t"                        \
-                " nop\n\t"                              \
-                ".balign 4\n"                           \
-                "1:     .long 2f\n"                     \
-                "2:"                                    \
-                : "=&r" (__dummy));                     \
-} while (0)
 #ifdef CONFIG_CPU_HAS_SR_RB
 #define lookup_exception_vector()       \
 ({                                      \
diff --git a/arch/sh/include/asm/system_64.h b/arch/sh/include/asm/system_64.h
index 36338646dfc8..8593bc8d1a4e 100644
--- a/arch/sh/include/asm/system_64.h
+++ b/arch/sh/include/asm/system_64.h
@@ -34,9 +34,6 @@ do {								\
                              &next->thread);                   \
 } while (0)
-#define jump_to_uncached()      do { } while (0)
-#define back_to_cached()        do { } while (0)
 #define __icbi(addr)    __asm__ __volatile__ ( "icbi %0, 0\n\t" : : "r" (addr))
 #define __ocbp(addr)    __asm__ __volatile__ ( "ocbp %0, 0\n\t" : : "r" (addr))
 #define __ocbi(addr)    __asm__ __volatile__ ( "ocbi %0, 0\n\t" : : "r" (addr))
diff --git a/arch/sh/include/asm/uncached.h b/arch/sh/include/asm/uncached.h
index e3419f96626a..6f8816b79cf1 100644
--- a/arch/sh/include/asm/uncached.h
+++ b/arch/sh/include/asm/uncached.h
@@ -4,15 +4,55 @@
 #include <linux/bug.h>
 #ifdef CONFIG_UNCACHED_MAPPING
+extern unsigned long cached_to_uncached;
+extern unsigned long uncached_size;
 extern unsigned long uncached_start, uncached_end;
 extern int virt_addr_uncached(unsigned long kaddr);
 extern void uncached_init(void);
 extern void uncached_resize(unsigned long size);
+/*
+ * Jump to uncached area.
+ * When handling TLB or caches, we need to do it from an uncached area.
+ */
+#define jump_to_uncached()                      \
+do {                                            \
+        unsigned long __dummy;                  \
+                                                \
+        __asm__ __volatile__(                   \
+                "mova   1f, %0\n\t"             \
+                "add    %1, %0\n\t"             \
+                "jmp    @%0\n\t"                \
+                " nop\n\t"                      \
+                ".balign 4\n"                   \
+                "1:"                            \
+                : "=&z" (__dummy)               \
+                : "r" (cached_to_uncached));    \
+} while (0)
+/*
+ * Back to cached area.
+ */
+#define back_to_cached()                                \
+do {                                                    \
+        unsigned long __dummy;                          \
+        ctrl_barrier();                                 \
+        __asm__ __volatile__(                           \
+                "mov.l  1f, %0\n\t"                     \
+                "jmp    @%0\n\t"                        \
+                " nop\n\t"                              \
+                ".balign 4\n"                           \
+                "1:     .long 2f\n"                     \
+                "2:"                                    \
+                : "=&r" (__dummy));                     \
+} while (0)
 #else
 #define virt_addr_uncached(kaddr)       (0)
 #define uncached_init()                 do { } while (0)
 #define uncached_resize(size)           BUG()
+#define jump_to_uncached()              do { } while (0)
+#define back_to_cached()                do { } while (0)
 #endif
 #endif /* __ASM_SH_UNCACHED_H */
diff --git a/arch/sh/include/mach-common/mach/edosk7705.h b/arch/sh/include/mach-common/mach/edosk7705.h
deleted file mode 100644
index efc43b323466..000000000000
--- a/arch/sh/include/mach-common/mach/edosk7705.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef __ASM_SH_EDOSK7705_H
-#define __ASM_SH_EDOSK7705_H
-#define __IO_PREFIX sh_edosk7705
-#include <asm/io_generic.h>
-#endif /* __ASM_SH_EDOSK7705_H */
diff --git a/arch/sh/include/mach-common/mach/microdev.h b/arch/sh/include/mach-common/mach/microdev.h
index 1aed15856e11..dcb05fa8c164 100644
--- a/arch/sh/include/mach-common/mach/microdev.h
+++ b/arch/sh/include/mach-common/mach/microdev.h
@@ -68,13 +68,4 @@ extern void microdev_print_fpga_intc_status(void);
 #define __IO_PREFIX microdev
 #include <asm/io_generic.h>
-#if defined(CONFIG_PCI)
-unsigned char  microdev_pci_inb(unsigned long port);
-unsigned short microdev_pci_inw(unsigned long port);
-unsigned long  microdev_pci_inl(unsigned long port);
-void           microdev_pci_outb(unsigned char  data, unsigned long port);
-void           microdev_pci_outw(unsigned short data, unsigned long port);
-void           microdev_pci_outl(unsigned long  data, unsigned long port);
-#endif
 #endif /* __ASM_SH_MICRODEV_H */
diff --git a/arch/sh/include/mach-common/mach/snapgear.h b/arch/sh/include/mach-common/mach/secureedge5410.h
index 042d95f51c4d..3653b9a4bacc 100644
--- a/arch/sh/include/mach-common/mach/snapgear.h
+++ b/arch/sh/include/mach-common/mach/secureedge5410.h
@@ -12,30 +12,9 @@
 #ifndef _ASM_SH_IO_SNAPGEAR_H
 #define _ASM_SH_IO_SNAPGEAR_H
-#if defined(CONFIG_CPU_SH4)
-/*
- * The external interrupt lines, these take up ints 0 - 15 inclusive
- * depending on the priority for the interrupt.  In fact the priority
- * is the interrupt :-)
- */
-#define IRL0_IRQ        2
-#define IRL0_PRIORITY   13
-#define IRL1_IRQ        5
-#define IRL1_PRIORITY   10
-#define IRL2_IRQ        8
-#define IRL2_PRIORITY   7
-#define IRL3_IRQ        11
-#define IRL3_PRIORITY   4
-#endif
 #define __IO_PREFIX     snapgear
 #include <asm/io_generic.h>
-#ifdef CONFIG_SH_SECUREEDGE5410
 /*
 * We need to remember what was written to the ioport as some bits
 * are shared with other functions and you cannot read back what was
@@ -66,6 +45,5 @@ extern unsigned short secureedge5410_ioport;
                        ((secureedge5410_ioport & ~(mask)) | ((val) & (mask)))))
 #define SECUREEDGE_READ_IOPORT() \
         ((*SECUREEDGE_IOPORT_ADDR&0x0817) | (secureedge5410_ioport&~0x0817))
-#endif
 #endif /* _ASM_SH_IO_SNAPGEAR_H */
diff --git a/arch/sh/include/mach-common/mach/systemh7751.h b/arch/sh/include/mach-common/mach/systemh7751.h
deleted file mode 100644
index 4161122c84ef..000000000000
--- a/arch/sh/include/mach-common/mach/systemh7751.h
+++ /dev/null
@@ -1,71 +0,0 @@
-#ifndef __ASM_SH_SYSTEMH_7751SYSTEMH_H
-#define __ASM_SH_SYSTEMH_7751SYSTEMH_H
-/*
- * linux/include/asm-sh/systemh/7751systemh.h
- *
- * Copyright (C) 2000  Kazumoto Kojima
- *
- * Hitachi SystemH support
- * Modified for 7751 SystemH by
- * Jonathan Short, 2002.
- */
-/* Box specific addresses.  */
-#define PA_ROM          0x00000000      /* EPROM */
-#define PA_ROM_SIZE     0x00400000      /* EPROM size 4M byte */
-#define PA_FROM         0x01000000      /* EPROM */
-#define PA_FROM_SIZE    0x00400000      /* EPROM size 4M byte */
-#define PA_EXT1         0x04000000
-#define PA_EXT1_SIZE    0x04000000
-#define PA_EXT2         0x08000000
-#define PA_EXT2_SIZE    0x04000000
-#define PA_SDRAM        0x0c000000
-#define PA_SDRAM_SIZE   0x04000000
-#define PA_EXT4         0x12000000
-#define PA_EXT4_SIZE    0x02000000
-#define PA_EXT5         0x14000000
-#define PA_EXT5_SIZE    0x04000000
-#define PA_PCIC         0x18000000      /* MR-SHPC-01 PCMCIA */
-#define PA_DIPSW0       0xb9000000      /* Dip switch 5,6 */
-#define PA_DIPSW1       0xb9000002      /* Dip switch 7,8 */
-#define PA_LED          0xba000000      /* LED */
-#define PA_BCR          0xbb000000      /* FPGA on the MS7751SE01 */
-#define PA_MRSHPC       0xb83fffe0      /* MR-SHPC-01 PCMCIA controller */
-#define PA_MRSHPC_MW1   0xb8400000      /* MR-SHPC-01 memory window base */
-#define PA_MRSHPC_MW2   0xb8500000      /* MR-SHPC-01 attribute window base */
-#define PA_MRSHPC_IO    0xb8600000      /* MR-SHPC-01 I/O window base */
-#define MRSHPC_MODE     (PA_MRSHPC + 4)
-#define MRSHPC_OPTION   (PA_MRSHPC + 6)
-#define MRSHPC_CSR      (PA_MRSHPC + 8)
-#define MRSHPC_ISR      (PA_MRSHPC + 10)
-#define MRSHPC_ICR      (PA_MRSHPC + 12)
-#define MRSHPC_CPWCR    (PA_MRSHPC + 14)
-#define MRSHPC_MW0CR1   (PA_MRSHPC + 16)
-#define MRSHPC_MW1CR1   (PA_MRSHPC + 18)
-#define MRSHPC_IOWCR1   (PA_MRSHPC + 20)
-#define MRSHPC_MW0CR2   (PA_MRSHPC + 22)
-#define MRSHPC_MW1CR2   (PA_MRSHPC + 24)
-#define MRSHPC_IOWCR2   (PA_MRSHPC + 26)
-#define MRSHPC_CDCR     (PA_MRSHPC + 28)
-#define MRSHPC_PCIC_INFO (PA_MRSHPC + 30)
-#define BCR_ILCRA       (PA_BCR + 0)
-#define BCR_ILCRB       (PA_BCR + 2)
-#define BCR_ILCRC       (PA_BCR + 4)
-#define BCR_ILCRD       (PA_BCR + 6)
-#define BCR_ILCRE       (PA_BCR + 8)
-#define BCR_ILCRF       (PA_BCR + 10)
-#define BCR_ILCRG       (PA_BCR + 12)
-#define IRQ_79C973      13
-#define __IO_PREFIX     sh7751systemh
-#include <asm/io_generic.h>
-#endif  /* __ASM_SH_SYSTEMH_7751SYSTEMH_H */
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c
index 2d9700c6b53a..0fe2e9329cb2 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c
@@ -48,7 +48,7 @@ static struct clk r_clk = {
 * Default rate for the root input clock, reset this with clk_set_rate()
 * from the platform code.
 */
-struct clk extal_clk = {
+static struct clk extal_clk = {
        .rate           = 33333333,
 };
@@ -111,7 +111,7 @@ static struct clk div3_clk = {
        .parent         = &pll_clk,
 };
-struct clk *main_clks[] = {
+static struct clk *main_clks[] = {
        &r_clk,
        &extal_clk,
        &fll_clk,
@@ -156,7 +156,7 @@ struct clk div4_clks[DIV4_NR] = {
 enum { DIV6_V, DIV6_FA, DIV6_FB, DIV6_I, DIV6_S, DIV6_NR };
-struct clk div6_clks[DIV6_NR] = {
+static struct clk div6_clks[DIV6_NR] = {
        [DIV6_V] = SH_CLK_DIV6(&div3_clk, VCLKCR, 0),
        [DIV6_FA] = SH_CLK_DIV6(&div3_clk, FCLKACR, 0),
        [DIV6_FB] = SH_CLK_DIV6(&div3_clk, FCLKBCR, 0),
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 09370392aff1..c3e61b366493 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -79,7 +79,7 @@ config 29BIT
 config 32BIT
        bool
-        default y if CPU_SH5
+        default y if CPU_SH5 || !MMU
 config PMB
        bool "Support 32-bit physical addressing through PMB"
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 038793286990..40733a952402 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -79,21 +79,20 @@ void dma_generic_free_coherent(struct device *dev, size_t size,
 void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
                    enum dma_data_direction direction)
 {
-#if defined(CONFIG_CPU_SH5) || defined(CONFIG_PMB)
+        void *addr;
-        void *p1addr = vaddr;
-#else
+        addr = __in_29bit_mode() ?
-        void *p1addr = (void*) P1SEGADDR((unsigned long)vaddr);
+               (void *)P1SEGADDR((unsigned long)vaddr) : vaddr;
-#endif
        switch (direction) {
        case DMA_FROM_DEVICE:           /* invalidate only */
-                __flush_invalidate_region(p1addr, size);
+                __flush_invalidate_region(addr, size);
                break;
        case DMA_TO_DEVICE:             /* writeback only */
-                __flush_wback_region(p1addr, size);
+                __flush_wback_region(addr, size);
                break;
        case DMA_BIDIRECTIONAL:         /* writeback and invalidate */
-                __flush_purge_region(p1addr, size);
+                __flush_purge_region(addr, size);
                break;
        default:
                BUG();
diff --git a/arch/sh/mm/uncached.c b/arch/sh/mm/uncached.c
index 8a4eca551fc0..a7767da815e9 100644
--- a/arch/sh/mm/uncached.c
+++ b/arch/sh/mm/uncached.c
@@ -28,7 +28,7 @@ EXPORT_SYMBOL(virt_addr_uncached);
 void __init uncached_init(void)
 {
-#ifdef CONFIG_29BIT
+#if defined(CONFIG_29BIT) || !defined(CONFIG_MMU)
        uncached_start = P2SEG;
 #else
        uncached_start = memory_end;
diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types
index 9f56eb978024..0e68465e7b50 100644
--- a/arch/sh/tools/mach-types
+++ b/arch/sh/tools/mach-types
@@ -26,7 +26,6 @@ HD64461			HD64461
 7724SE                  SH_7724_SOLUTION_ENGINE
 7751SE                  SH_7751_SOLUTION_ENGINE
 7780SE                  SH_7780_SOLUTION_ENGINE
-7751SYSTEMH             SH_7751_SYSTEMH
 HP6XX                   SH_HP6XX
 DREAMCAST               SH_DREAMCAST
 SNAPGEAR                SH_SECUREEDGE5410
diff --git a/arch/um/include/asm/ptrace-generic.h b/arch/um/include/asm/ptrace-generic.h
index 2cd899f75a3c..b7c5bab9bd77 100644
--- a/arch/um/include/asm/ptrace-generic.h
+++ b/arch/um/include/asm/ptrace-generic.h
@@ -38,8 +38,8 @@ struct pt_regs {
 struct task_struct;
-extern long subarch_ptrace(struct task_struct *child, long request, long addr,
+extern long subarch_ptrace(struct task_struct *child, long request,
-                           long data);
+        unsigned long addr, unsigned long data);
 extern unsigned long getreg(struct task_struct *child, int regno);
 extern int putreg(struct task_struct *child, int regno, unsigned long value);
 extern int get_fpregs(struct user_i387_struct __user *buf,
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index a5e33f29bbeb..701b672c1122 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -122,7 +122,7 @@ long arch_ptrace(struct task_struct *child, long request,
                break;
        case PTRACE_SET_THREAD_AREA:
-                ret = ptrace_set_thread_area(child, addr, datavp);
+                ret = ptrace_set_thread_area(child, addr, vp);
                break;
        case PTRACE_FAULTINFO: {
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 286de34b0ed6..f6ce0bda3b98 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -141,13 +141,13 @@ static inline void native_apic_msr_write(u32 reg, u32 v)
 static inline u32 native_apic_msr_read(u32 reg)
 {
-        u32 low, high;
+        u64 msr;
        if (reg == APIC_DFR)
                return -1;
-        rdmsr(APIC_BASE_MSR + (reg >> 4), low, high);
+        rdmsrl(APIC_BASE_MSR + (reg >> 4), msr);
-        return low;
+        return (u32)msr;
 }
 static inline void native_x2apic_wait_icr_idle(void)
@@ -181,12 +181,12 @@ extern void enable_x2apic(void);
 extern void x2apic_icr_write(u32 low, u32 id);
 static inline int x2apic_enabled(void)
 {
-        int msr, msr2;
+        u64 msr;
        if (!cpu_has_x2apic)
                return 0;
-        rdmsr(MSR_IA32_APICBASE, msr, msr2);
+        rdmsrl(MSR_IA32_APICBASE, msr);
        if (msr & X2APIC_ENABLE)
                return 1;
        return 0;
diff --git a/arch/x86/include/asm/uv/uv_mmrs.h b/arch/x86/include/asm/uv/uv_mmrs.h
index b2f2d2e05cec..6d90adf4428a 100644
--- a/arch/x86/include/asm/uv/uv_mmrs.h
+++ b/arch/x86/include/asm/uv/uv_mmrs.h
@@ -806,6 +806,78 @@ union uvh_node_present_table_u {
 };
 /* ========================================================================= */
+/*                 UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR                  */
+/* ========================================================================= */
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR 0x16000c8UL
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR_BASE_SHFT 24
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR_BASE_MASK 0x00000000ff000000UL
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR_M_ALIAS_SHFT 48
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR_M_ALIAS_MASK 0x001f000000000000UL
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR_ENABLE_SHFT 63
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR_ENABLE_MASK 0x8000000000000000UL
+union uvh_rh_gam_alias210_overlay_config_0_mmr_u {
+    unsigned long       v;
+    struct uvh_rh_gam_alias210_overlay_config_0_mmr_s {
+        unsigned long   rsvd_0_23: 24;  /*    */
+        unsigned long   base    :  8;  /* RW */
+        unsigned long   rsvd_32_47: 16;  /*    */
+        unsigned long   m_alias :  5;  /* RW */
+        unsigned long   rsvd_53_62: 10;  /*    */
+        unsigned long   enable  :  1;  /* RW */
+    } s;
+};
+/* ========================================================================= */
+/*                 UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR                  */
+/* ========================================================================= */
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR 0x16000d8UL
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR_BASE_SHFT 24
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR_BASE_MASK 0x00000000ff000000UL
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR_M_ALIAS_SHFT 48
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR_M_ALIAS_MASK 0x001f000000000000UL
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR_ENABLE_SHFT 63
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR_ENABLE_MASK 0x8000000000000000UL
+union uvh_rh_gam_alias210_overlay_config_1_mmr_u {
+    unsigned long       v;
+    struct uvh_rh_gam_alias210_overlay_config_1_mmr_s {
+        unsigned long   rsvd_0_23: 24;  /*    */
+        unsigned long   base    :  8;  /* RW */
+        unsigned long   rsvd_32_47: 16;  /*    */
+        unsigned long   m_alias :  5;  /* RW */
+        unsigned long   rsvd_53_62: 10;  /*    */
+        unsigned long   enable  :  1;  /* RW */
+    } s;
+};
+/* ========================================================================= */
+/*                 UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR                  */
+/* ========================================================================= */
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR 0x16000e8UL
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR_BASE_SHFT 24
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR_BASE_MASK 0x00000000ff000000UL
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR_M_ALIAS_SHFT 48
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR_M_ALIAS_MASK 0x001f000000000000UL
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR_ENABLE_SHFT 63
+#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR_ENABLE_MASK 0x8000000000000000UL
+union uvh_rh_gam_alias210_overlay_config_2_mmr_u {
+    unsigned long       v;
+    struct uvh_rh_gam_alias210_overlay_config_2_mmr_s {
+        unsigned long   rsvd_0_23: 24;  /*    */
+        unsigned long   base    :  8;  /* RW */
+        unsigned long   rsvd_32_47: 16;  /*    */
+        unsigned long   m_alias :  5;  /* RW */
+        unsigned long   rsvd_53_62: 10;  /*    */
+        unsigned long   enable  :  1;  /* RW */
+    } s;
+};
+/* ========================================================================= */
 /*                UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR                  */
 /* ========================================================================= */
 #define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR 0x16000d0UL
@@ -857,6 +929,29 @@ union uvh_rh_gam_alias210_redirect_config_2_mmr_u {
 };
 /* ========================================================================= */
+/*                          UVH_RH_GAM_CONFIG_MMR                            */
+/* ========================================================================= */
+#define UVH_RH_GAM_CONFIG_MMR 0x1600000UL
+#define UVH_RH_GAM_CONFIG_MMR_M_SKT_SHFT 0
+#define UVH_RH_GAM_CONFIG_MMR_M_SKT_MASK 0x000000000000003fUL
+#define UVH_RH_GAM_CONFIG_MMR_N_SKT_SHFT 6
+#define UVH_RH_GAM_CONFIG_MMR_N_SKT_MASK 0x00000000000003c0UL
+#define UVH_RH_GAM_CONFIG_MMR_MMIOL_CFG_SHFT 12
+#define UVH_RH_GAM_CONFIG_MMR_MMIOL_CFG_MASK 0x0000000000001000UL
+union uvh_rh_gam_config_mmr_u {
+    unsigned long       v;
+    struct uvh_rh_gam_config_mmr_s {
+        unsigned long   m_skt     :  6;  /* RW */
+        unsigned long   n_skt     :  4;  /* RW */
+        unsigned long   rsvd_10_11:  2;  /*    */
+        unsigned long   mmiol_cfg :  1;  /* RW */
+        unsigned long   rsvd_13_63: 51;  /*    */
+    } s;
+};
+/* ========================================================================= */
 /*                    UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR                      */
 /* ========================================================================= */
 #define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR 0x1600010UL
@@ -987,97 +1082,5 @@ union uvh_rtc1_int_config_u {
    } s;
 };
-/* ========================================================================= */
-/*                          UVH_SI_ADDR_MAP_CONFIG                           */
-/* ========================================================================= */
-#define UVH_SI_ADDR_MAP_CONFIG 0xc80000UL
-#define UVH_SI_ADDR_MAP_CONFIG_M_SKT_SHFT 0
-#define UVH_SI_ADDR_MAP_CONFIG_M_SKT_MASK 0x000000000000003fUL
-#define UVH_SI_ADDR_MAP_CONFIG_N_SKT_SHFT 8
-#define UVH_SI_ADDR_MAP_CONFIG_N_SKT_MASK 0x0000000000000f00UL
-union uvh_si_addr_map_config_u {
-    unsigned long       v;
-    struct uvh_si_addr_map_config_s {
-        unsigned long   m_skt :  6;  /* RW */
-        unsigned long   rsvd_6_7:  2;  /*    */
-        unsigned long   n_skt :  4;  /* RW */
-        unsigned long   rsvd_12_63: 52;  /*    */
-    } s;
-};
-/* ========================================================================= */
-/*                       UVH_SI_ALIAS0_OVERLAY_CONFIG                        */
-/* ========================================================================= */
-#define UVH_SI_ALIAS0_OVERLAY_CONFIG 0xc80008UL
-#define UVH_SI_ALIAS0_OVERLAY_CONFIG_BASE_SHFT 24
-#define UVH_SI_ALIAS0_OVERLAY_CONFIG_BASE_MASK 0x00000000ff000000UL
-#define UVH_SI_ALIAS0_OVERLAY_CONFIG_M_ALIAS_SHFT 48
-#define UVH_SI_ALIAS0_OVERLAY_CONFIG_M_ALIAS_MASK 0x001f000000000000UL
-#define UVH_SI_ALIAS0_OVERLAY_CONFIG_ENABLE_SHFT 63
-#define UVH_SI_ALIAS0_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
-union uvh_si_alias0_overlay_config_u {
-    unsigned long       v;
-    struct uvh_si_alias0_overlay_config_s {
-        unsigned long   rsvd_0_23: 24;  /*    */
-        unsigned long   base    :  8;  /* RW */
-        unsigned long   rsvd_32_47: 16;  /*    */
-        unsigned long   m_alias :  5;  /* RW */
-        unsigned long   rsvd_53_62: 10;  /*    */
-        unsigned long   enable  :  1;  /* RW */
-    } s;
-};
-/* ========================================================================= */
-/*                       UVH_SI_ALIAS1_OVERLAY_CONFIG                        */
-/* ========================================================================= */
-#define UVH_SI_ALIAS1_OVERLAY_CONFIG 0xc80010UL
-#define UVH_SI_ALIAS1_OVERLAY_CONFIG_BASE_SHFT 24
-#define UVH_SI_ALIAS1_OVERLAY_CONFIG_BASE_MASK 0x00000000ff000000UL
-#define UVH_SI_ALIAS1_OVERLAY_CONFIG_M_ALIAS_SHFT 48
-#define UVH_SI_ALIAS1_OVERLAY_CONFIG_M_ALIAS_MASK 0x001f000000000000UL
-#define UVH_SI_ALIAS1_OVERLAY_CONFIG_ENABLE_SHFT 63
-#define UVH_SI_ALIAS1_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
-union uvh_si_alias1_overlay_config_u {
-    unsigned long       v;
-    struct uvh_si_alias1_overlay_config_s {
-        unsigned long   rsvd_0_23: 24;  /*    */
-        unsigned long   base    :  8;  /* RW */
-        unsigned long   rsvd_32_47: 16;  /*    */
-        unsigned long   m_alias :  5;  /* RW */
-        unsigned long   rsvd_53_62: 10;  /*    */
-        unsigned long   enable  :  1;  /* RW */
-    } s;
-};
-/* ========================================================================= */
-/*                       UVH_SI_ALIAS2_OVERLAY_CONFIG                        */
-/* ========================================================================= */
-#define UVH_SI_ALIAS2_OVERLAY_CONFIG 0xc80018UL
-#define UVH_SI_ALIAS2_OVERLAY_CONFIG_BASE_SHFT 24
-#define UVH_SI_ALIAS2_OVERLAY_CONFIG_BASE_MASK 0x00000000ff000000UL
-#define UVH_SI_ALIAS2_OVERLAY_CONFIG_M_ALIAS_SHFT 48
-#define UVH_SI_ALIAS2_OVERLAY_CONFIG_M_ALIAS_MASK 0x001f000000000000UL
-#define UVH_SI_ALIAS2_OVERLAY_CONFIG_ENABLE_SHFT 63
-#define UVH_SI_ALIAS2_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
-union uvh_si_alias2_overlay_config_u {
-    unsigned long       v;
-    struct uvh_si_alias2_overlay_config_s {
-        unsigned long   rsvd_0_23: 24;  /*    */
-        unsigned long   base    :  8;  /* RW */
-        unsigned long   rsvd_32_47: 16;  /*    */
-        unsigned long   m_alias :  5;  /* RW */
-        unsigned long   rsvd_53_62: 10;  /*    */
-        unsigned long   enable  :  1;  /* RW */
-    } s;
-};
-#endif /* _ASM_X86_UV_UV_MMRS_H */
+#endif /* __ASM_UV_MMRS_X86_H__ */
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 850657d1b0ed..3f838d537392 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -52,7 +52,6 @@
 #include <asm/mce.h>
 #include <asm/kvm_para.h>
 #include <asm/tsc.h>
-#include <asm/atomic.h>
 unsigned int num_processors;
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index ed4118de249e..194539aea175 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -379,14 +379,14 @@ struct redir_addr {
 #define DEST_SHIFT UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR_DEST_BASE_SHFT
 static __initdata struct redir_addr redir_addrs[] = {
-        {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR, UVH_SI_ALIAS0_OVERLAY_CONFIG},
+        {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR, UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR},
-        {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR, UVH_SI_ALIAS1_OVERLAY_CONFIG},
+        {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR, UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR},
-        {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR, UVH_SI_ALIAS2_OVERLAY_CONFIG},
+        {UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR, UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR},
 };
 static __init void get_lowmem_redirect(unsigned long *base, unsigned long *size)
 {
-        union uvh_si_alias0_overlay_config_u alias;
+        union uvh_rh_gam_alias210_overlay_config_2_mmr_u alias;
        union uvh_rh_gam_alias210_redirect_config_2_mmr_u redirect;
        int i;
@@ -660,7 +660,7 @@ void uv_nmi_init(void)
 void __init uv_system_init(void)
 {
-        union uvh_si_addr_map_config_u m_n_config;
+        union uvh_rh_gam_config_mmr_u  m_n_config;
        union uvh_node_id_u node_id;
        unsigned long gnode_upper, lowmem_redir_base, lowmem_redir_size;
        int bytes, nid, cpu, lcpu, pnode, blade, i, j, m_val, n_val;
@@ -670,7 +670,7 @@ void __init uv_system_init(void)
        map_low_mmrs();
-        m_n_config.v = uv_read_local_mmr(UVH_SI_ADDR_MAP_CONFIG);
+        m_n_config.v = uv_read_local_mmr(UVH_RH_GAM_CONFIG_MMR );
        m_val = m_n_config.s.m_skt;
        n_val = m_n_config.s.n_skt;
        mmr_base =
diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c
index 46d58448c3af..e421b8cd6944 100644
--- a/arch/x86/kernel/cpu/perf_event_amd.c
+++ b/arch/x86/kernel/cpu/perf_event_amd.c
@@ -280,11 +280,11 @@ static struct amd_nb *amd_alloc_nb(int cpu, int nb_id)
        struct amd_nb *nb;
        int i;
-        nb = kmalloc(sizeof(struct amd_nb), GFP_KERNEL);
+        nb = kmalloc_node(sizeof(struct amd_nb), GFP_KERNEL | __GFP_ZERO,
+                          cpu_to_node(cpu));
        if (!nb)
                return NULL;
-        memset(nb, 0, sizeof(*nb));
        nb->nb_id = nb_id;
        /*
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index e1af7c055c7d..ce0cb4721c9a 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -212,7 +212,7 @@ static int install_equiv_cpu_table(const u8 *buf)
                return 0;
        }
-        equiv_cpu_table = (struct equiv_cpu_entry *) vmalloc(size);
+        equiv_cpu_table = vmalloc(size);
        if (!equiv_cpu_table) {
                pr_err("failed to allocate equivalent CPU table\n");
                return 0;
diff --git a/arch/x86/kernel/mmconf-fam10h_64.c b/arch/x86/kernel/mmconf-fam10h_64.c
index 71825806cd44..6da143c2a6b8 100644
--- a/arch/x86/kernel/mmconf-fam10h_64.c
+++ b/arch/x86/kernel/mmconf-fam10h_64.c
@@ -217,13 +217,13 @@ void __cpuinit fam10h_check_enable_mmcfg(void)
        wrmsrl(address, val);
 }
-static int __devinit set_check_enable_amd_mmconf(const struct dmi_system_id *d)
+static int __init set_check_enable_amd_mmconf(const struct dmi_system_id *d)
 {
        pci_probe |= PCI_CHECK_ENABLE_AMD_MMCONF;
        return 0;
 }
-static const struct dmi_system_id __cpuinitconst mmconf_dmi_table[] = {
+static const struct dmi_system_id __initconst mmconf_dmi_table[] = {
        {
                .callback = set_check_enable_amd_mmconf,
                .ident = "Sun Microsystems Machine",
@@ -234,7 +234,8 @@ static const struct dmi_system_id __cpuinitconst mmconf_dmi_table[] = {
        {}
 };
-void __cpuinit check_enable_amd_mmconf_dmi(void)
+/* Called from a __cpuinit function, but only on the BSP. */
+void __ref check_enable_amd_mmconf_dmi(void)
 {
        dmi_check_system(mmconf_dmi_table);
 }
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index bab3b9e6f66d..008b91eefa18 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -41,44 +41,6 @@ void pvclock_set_flags(u8 flags)
        valid_flags = flags;
 }
-/*
- * Scale a 64-bit delta by scaling and multiplying by a 32-bit fraction,
- * yielding a 64-bit result.
- */
-static inline u64 scale_delta(u64 delta, u32 mul_frac, int shift)
-{
-        u64 product;
-#ifdef __i386__
-        u32 tmp1, tmp2;
-#endif
-        if (shift < 0)
-                delta >>= -shift;
-        else
-                delta <<= shift;
-#ifdef __i386__
-        __asm__ (
-                "mul  %5       ; "
-                "mov  %4,%%eax ; "
-                "mov  %%edx,%4 ; "
-                "mul  %5       ; "
-                "xor  %5,%5    ; "
-                "add  %4,%%eax ; "
-                "adc  %5,%%edx ; "
-                : "=A" (product), "=r" (tmp1), "=r" (tmp2)
-                : "a" ((u32)delta), "1" ((u32)(delta >> 32)), "2" (mul_frac) );
-#elif defined(__x86_64__)
-        __asm__ (
-                "mul %%rdx ; shrd $32,%%rdx,%%rax"
-                : "=a" (product) : "0" (delta), "d" ((u64)mul_frac) );
-#else
-#error implement me!
-#endif
-        return product;
-}
 static u64 pvclock_get_nsec_offset(struct pvclock_shadow_time *shadow)
 {
        u64 delta = native_read_tsc() - shadow->tsc_timestamp;
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 49358481c733..12cdbb17ad18 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -251,7 +251,7 @@ static void __cpuinit calculate_tlb_offset(void)
        }
 }
-static int tlb_cpuhp_notify(struct notifier_block *n,
+static int __cpuinit tlb_cpuhp_notify(struct notifier_block *n,
                unsigned long action, void *hcpu)
 {
        switch (action & 0xf) {
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 20ea20a39e2a..a318194002b5 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -1343,8 +1343,8 @@ uv_activation_descriptor_init(int node, int pnode)
         * each bau_desc is 64 bytes; there are 8 (UV_ITEMS_PER_DESCRIPTOR)
         * per cpu; and up to 32 (UV_ADP_SIZE) cpu's per uvhub
         */
-        bau_desc = (struct bau_desc *)kmalloc_node(sizeof(struct bau_desc)*
+        bau_desc = kmalloc_node(sizeof(struct bau_desc) * UV_ADP_SIZE
-                UV_ADP_SIZE*UV_ITEMS_PER_DESCRIPTOR, GFP_KERNEL, node);
+                                * UV_ITEMS_PER_DESCRIPTOR, GFP_KERNEL, node);
        BUG_ON(!bau_desc);
        pa = uv_gpa(bau_desc); /* need the real nasid*/
@@ -1402,9 +1402,9 @@ uv_payload_queue_init(int node, int pnode)
        struct bau_payload_queue_entry *pqp_malloc;
        struct bau_control *bcp;
-        pqp = (struct bau_payload_queue_entry *) kmalloc_node(
+        pqp = kmalloc_node((DEST_Q_SIZE + 1)
-                (DEST_Q_SIZE + 1) * sizeof(struct bau_payload_queue_entry),
+                           * sizeof(struct bau_payload_queue_entry),
-                GFP_KERNEL, node);
+                           GFP_KERNEL, node);
        BUG_ON(!pqp);
        pqp_malloc = pqp;
@@ -1520,8 +1520,7 @@ static void __init uv_init_per_cpu(int nuvhubs)
        timeout_us = calculate_destination_timeout();
-        uvhub_descs = (struct uvhub_desc *)
+        uvhub_descs = kmalloc(nuvhubs * sizeof(struct uvhub_desc), GFP_KERNEL);
-                kmalloc(nuvhubs * sizeof(struct uvhub_desc), GFP_KERNEL);
        memset(uvhub_descs, 0, nuvhubs * sizeof(struct uvhub_desc));
        uvhub_mask = kzalloc((nuvhubs+7)/8, GFP_KERNEL);
        for_each_present_cpu(cpu) {
diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
index de3078215fe6..75586f1f86e7 100644
--- a/crypto/pcrypt.c
+++ b/crypto/pcrypt.c
@@ -504,7 +504,6 @@ err:
 static void pcrypt_fini_padata(struct padata_pcrypt *pcrypt)
 {
-        kobject_put(&pcrypt->pinst->kobj);
        free_cpumask_var(pcrypt->cb_cpumask->mask);
        kfree(pcrypt->cb_cpumask);
diff --git a/drivers/Makefile b/drivers/Makefile
index 14cf9077bb2b..f3ebb30f1b7f 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -26,6 +26,7 @@ obj-$(CONFIG_REGULATOR)		+= regulator/
 # char/ comes before serial/ etc so that the VT console is the boot-time
 # default.
+obj-y                           += tty/
 obj-y                           += char/
 # gpu/ comes after char for AGP vs DRM startup
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 8f19b380ca83..3951020e494a 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -4573,8 +4573,8 @@ static void __exit floppy_module_exit(void)
                        device_remove_file(&floppy_device[drive].dev, &dev_attr_cmos);
                        platform_device_unregister(&floppy_device[drive]);
                }
-                put_disk(disks[drive]);
                blk_cleanup_queue(disks[drive]->queue);
+                put_disk(disks[drive]);
        }
        del_timer_sync(&fd_timeout);
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 3a9c01416839..ba53ec956c95 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -2,24 +2,10 @@
 # Makefile for the kernel character device drivers.
 #
-#
+obj-y                           += mem.o random.o
-# This file contains the font map for the default (hardware) font
-#
-FONTMAPFILE = cp437.uni
-obj-y    += mem.o random.o tty_io.o n_tty.o tty_ioctl.o tty_ldisc.o tty_buffer.o tty_port.o
-obj-y                           += tty_mutex.o
-obj-$(CONFIG_LEGACY_PTYS)       += pty.o
-obj-$(CONFIG_UNIX98_PTYS)       += pty.o
 obj-$(CONFIG_TTY_PRINTK)        += ttyprintk.o
 obj-y                           += misc.o
-obj-$(CONFIG_VT)                += vt_ioctl.o vc_screen.o selection.o keyboard.o
 obj-$(CONFIG_BFIN_JTAG_COMM)    += bfin_jtag_comm.o
-obj-$(CONFIG_CONSOLE_TRANSLATIONS) += consolemap.o consolemap_deftbl.o
-obj-$(CONFIG_HW_CONSOLE)        += vt.o defkeymap.o
-obj-$(CONFIG_AUDIT)             += tty_audit.o
-obj-$(CONFIG_MAGIC_SYSRQ)       += sysrq.o
 obj-$(CONFIG_MVME147_SCC)       += generic_serial.o vme_scc.o
 obj-$(CONFIG_MVME162_SCC)       += generic_serial.o vme_scc.o
 obj-$(CONFIG_BVME6000_SCC)      += generic_serial.o vme_scc.o
@@ -41,8 +27,6 @@ obj-$(CONFIG_ISI)		+= isicom.o
 obj-$(CONFIG_SYNCLINK)          += synclink.o
 obj-$(CONFIG_SYNCLINKMP)        += synclinkmp.o
 obj-$(CONFIG_SYNCLINK_GT)       += synclink_gt.o
-obj-$(CONFIG_N_HDLC)            += n_hdlc.o
-obj-$(CONFIG_N_GSM)             += n_gsm.o
 obj-$(CONFIG_AMIGA_BUILTIN_SERIAL) += amiserial.o
 obj-$(CONFIG_SX)                += sx.o generic_serial.o
 obj-$(CONFIG_RIO)               += rio/ generic_serial.o
@@ -74,7 +58,6 @@ obj-$(CONFIG_PRINTER)		+= lp.o
 obj-$(CONFIG_APM_EMULATION)     += apm-emulation.o
 obj-$(CONFIG_DTLK)              += dtlk.o
-obj-$(CONFIG_R3964)             += n_r3964.o
 obj-$(CONFIG_APPLICOM)          += applicom.o
 obj-$(CONFIG_SONYPI)            += sonypi.o
 obj-$(CONFIG_RTC)               += rtc.o
@@ -115,28 +98,3 @@ obj-$(CONFIG_RAMOOPS)		+= ramoops.o
 obj-$(CONFIG_JS_RTC)            += js-rtc.o
 js-rtc-y = rtc.o
-# Files generated that shall be removed upon make clean
-clean-files := consolemap_deftbl.c defkeymap.c
-quiet_cmd_conmk = CONMK   $@
-      cmd_conmk = scripts/conmakehash $< > $@
-$(obj)/consolemap_deftbl.c: $(src)/$(FONTMAPFILE)
-        $(call cmd,conmk)
-$(obj)/defkeymap.o:  $(obj)/defkeymap.c
-# Uncomment if you're changing the keymap and have an appropriate
-# loadkeys version for the map. By default, we'll use the shipped
-# versions.
-# GENERATE_KEYMAP := 1
-ifdef GENERATE_KEYMAP
-$(obj)/defkeymap.c: $(obj)/%.c: $(src)/%.map
-        loadkeys --mktable $< > $@.tmp
-        sed -e 's/^static *//' $@.tmp > $@
-        rm $@.tmp
-endif
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 6b6760ea2435..9272c38dd3c6 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -1210,14 +1210,14 @@ static void gen6_write_entry(dma_addr_t addr, unsigned int entry,
        unsigned int gfdt = flags & AGP_USER_CACHED_MEMORY_GFDT;
        u32 pte_flags;
-        if (type_mask == AGP_USER_UNCACHED_MEMORY)
+        if (type_mask == AGP_USER_MEMORY)
                pte_flags = GEN6_PTE_UNCACHED | I810_PTE_VALID;
        else if (type_mask == AGP_USER_CACHED_MEMORY_LLC_MLC) {
-                pte_flags = GEN6_PTE_LLC | I810_PTE_VALID;
+                pte_flags = GEN6_PTE_LLC_MLC | I810_PTE_VALID;
                if (gfdt)
                        pte_flags |= GEN6_PTE_GFDT;
        } else { /* set 'normal'/'cached' to LLC by default */
-                pte_flags = GEN6_PTE_LLC_MLC | I810_PTE_VALID;
+                pte_flags = GEN6_PTE_LLC | I810_PTE_VALID;
                if (gfdt)
                        pte_flags |= GEN6_PTE_GFDT;
        }
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index a44611652282..d68d3aa1814b 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -616,13 +616,9 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev)
        /* get hold of clock */
        p->clk = clk_get(&p->pdev->dev, "cmt_fck");
        if (IS_ERR(p->clk)) {
-                dev_warn(&p->pdev->dev, "using deprecated clock lookup\n");
+                dev_err(&p->pdev->dev, "cannot get clock\n");
-                p->clk = clk_get(&p->pdev->dev, cfg->clk);
+                ret = PTR_ERR(p->clk);
-                if (IS_ERR(p->clk)) {
+                goto err1;
-                        dev_err(&p->pdev->dev, "cannot get clock\n");
-                        ret = PTR_ERR(p->clk);
-                        goto err1;
-                }
        }
        if (resource_size(res) == 6) {
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index ef7a5be8a09f..40630cb98237 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -287,13 +287,9 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
        /* get hold of clock */
        p->clk = clk_get(&p->pdev->dev, "mtu2_fck");
        if (IS_ERR(p->clk)) {
-                dev_warn(&p->pdev->dev, "using deprecated clock lookup\n");
+                dev_err(&p->pdev->dev, "cannot get clock\n");
-                p->clk = clk_get(&p->pdev->dev, cfg->clk);
+                ret = PTR_ERR(p->clk);
-                if (IS_ERR(p->clk)) {
+                goto err1;
-                        dev_err(&p->pdev->dev, "cannot get clock\n");
-                        ret = PTR_ERR(p->clk);
-                        goto err1;
-                }
        }
        return sh_mtu2_register(p, (char *)dev_name(&p->pdev->dev),
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index de715901b82a..36aba9923060 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -393,13 +393,9 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
        /* get hold of clock */
        p->clk = clk_get(&p->pdev->dev, "tmu_fck");
        if (IS_ERR(p->clk)) {
-                dev_warn(&p->pdev->dev, "using deprecated clock lookup\n");
+                dev_err(&p->pdev->dev, "cannot get clock\n");
-                p->clk = clk_get(&p->pdev->dev, cfg->clk);
+                ret = PTR_ERR(p->clk);
-                if (IS_ERR(p->clk)) {
+                goto err1;
-                        dev_err(&p->pdev->dev, "cannot get clock\n");
-                        ret = PTR_ERR(p->clk);
-                        goto err1;
-                }
        }
        return sh_tmu_register(p, (char *)dev_name(&p->pdev->dev),
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index dcbeb98f195a..f7af91cb273d 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -276,7 +276,7 @@ static bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
        struct drm_crtc *tmp;
        int crtc_mask = 1;
-        WARN(!crtc, "checking null crtc?");
+        WARN(!crtc, "checking null crtc?\n");
        dev = crtc->dev;
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index c1a26217a530..a245d17165ae 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -240,7 +240,7 @@ drm_do_probe_ddc_edid(struct i2c_adapter *adapter, unsigned char *buf,
                        .addr   = DDC_ADDR,
                        .flags  = I2C_M_RD,
                        .len    = len,
-                        .buf    = buf + start,
+                        .buf    = buf,
                }
        };
@@ -253,7 +253,7 @@ drm_do_probe_ddc_edid(struct i2c_adapter *adapter, unsigned char *buf,
 static u8 *
 drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
 {
-        int i, j = 0;
+        int i, j = 0, valid_extensions = 0;
        u8 *block, *new;
        if ((block = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)
@@ -280,14 +280,28 @@ drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
        for (j = 1; j <= block[0x7e]; j++) {
                for (i = 0; i < 4; i++) {
-                        if (drm_do_probe_ddc_edid(adapter, block, j,
+                        if (drm_do_probe_ddc_edid(adapter,
-                                                  EDID_LENGTH))
+                                  block + (valid_extensions + 1) * EDID_LENGTH,
+                                  j, EDID_LENGTH))
                                goto out;
-                        if (drm_edid_block_valid(block + j * EDID_LENGTH))
+                        if (drm_edid_block_valid(block + (valid_extensions + 1) * EDID_LENGTH)) {
+                                valid_extensions++;
                                break;
+                        }
                }
                if (i == 4)
-                        goto carp;
+                        dev_warn(connector->dev->dev,
+                         "%s: Ignoring invalid EDID block %d.\n",
+                         drm_get_connector_name(connector), j);
+        }
+        if (valid_extensions != block[0x7e]) {
+                block[EDID_LENGTH-1] += block[0x7e] - valid_extensions;
+                block[0x7e] = valid_extensions;
+                new = krealloc(block, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL);
+                if (!new)
+                        goto out;
+                block = new;
        }
        return block;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 3467dd420760..80745f85902c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -44,7 +44,7 @@ unsigned int i915_fbpercrtc = 0;
 module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
 unsigned int i915_powersave = 1;
-module_param_named(powersave, i915_powersave, int, 0400);
+module_param_named(powersave, i915_powersave, int, 0600);
 unsigned int i915_lvds_downclock = 0;
 module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 2c2c19b6285e..90414ae86afc 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1321,6 +1321,7 @@ static inline void i915_write(struct drm_i915_private *dev_priv, u32 reg,
 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type)
 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
+#define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
 #define PRIMARY_RINGBUFFER_SIZE         (128*1024)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 8eb8453208b5..ef188e391406 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2172,7 +2172,7 @@ i915_gem_object_unbind(struct drm_gem_object *obj)
 static int i915_ring_idle(struct drm_device *dev,
                          struct intel_ring_buffer *ring)
 {
-        if (list_empty(&ring->gpu_write_list))
+        if (list_empty(&ring->gpu_write_list) && list_empty(&ring->active_list))
                return 0;
        i915_gem_flush_ring(dev, NULL, ring,
@@ -2190,9 +2190,7 @@ i915_gpu_idle(struct drm_device *dev)
        int ret;
        lists_empty = (list_empty(&dev_priv->mm.flushing_list) &&
-                       list_empty(&dev_priv->render_ring.active_list) &&
+                       list_empty(&dev_priv->mm.active_list));
-                       list_empty(&dev_priv->bsd_ring.active_list) &&
-                       list_empty(&dev_priv->blt_ring.active_list));
        if (lists_empty)
                return 0;
@@ -3108,7 +3106,8 @@ i915_gem_object_set_to_gpu_domain(struct drm_gem_object *obj,
         * write domain
         */
        if (obj->write_domain &&
-            obj->write_domain != obj->pending_read_domains) {
+            (obj->write_domain != obj->pending_read_domains ||
+             obj_priv->ring != ring)) {
                flush_domains |= obj->write_domain;
                invalidate_domains |=
                        obj->pending_read_domains & ~obj->write_domain;
@@ -3497,6 +3496,52 @@ i915_gem_execbuffer_pin(struct drm_device *dev,
        return 0;
 }
+static int
+i915_gem_execbuffer_move_to_gpu(struct drm_device *dev,
+                                struct drm_file *file,
+                                struct intel_ring_buffer *ring,
+                                struct drm_gem_object **objects,
+                                int count)
+{
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        int ret, i;
+        /* Zero the global flush/invalidate flags. These
+         * will be modified as new domains are computed
+         * for each object
+         */
+        dev->invalidate_domains = 0;
+        dev->flush_domains = 0;
+        dev_priv->mm.flush_rings = 0;
+        for (i = 0; i < count; i++)
+                i915_gem_object_set_to_gpu_domain(objects[i], ring);
+        if (dev->invalidate_domains | dev->flush_domains) {
+#if WATCH_EXEC
+                DRM_INFO("%s: invalidate_domains %08x flush_domains %08x\n",
+                          __func__,
+                         dev->invalidate_domains,
+                         dev->flush_domains);
+#endif
+                i915_gem_flush(dev, file,
+                               dev->invalidate_domains,
+                               dev->flush_domains,
+                               dev_priv->mm.flush_rings);
+        }
+        for (i = 0; i < count; i++) {
+                struct drm_i915_gem_object *obj = to_intel_bo(objects[i]);
+                /* XXX replace with semaphores */
+                if (obj->ring && ring != obj->ring) {
+                        ret = i915_gem_object_wait_rendering(&obj->base, true);
+                        if (ret)
+                                return ret;
+                }
+        }
+        return 0;
+}
 /* Throttle our rendering by waiting until the ring has completed our requests
 * emitted over 20 msec ago.
 *
@@ -3757,33 +3802,10 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
                goto err;
        }
-        /* Zero the global flush/invalidate flags. These
+        ret = i915_gem_execbuffer_move_to_gpu(dev, file, ring,
-         * will be modified as new domains are computed
+                                              object_list, args->buffer_count);
-         * for each object
+        if (ret)
-         */
+                goto err;
-        dev->invalidate_domains = 0;
-        dev->flush_domains = 0;
-        dev_priv->mm.flush_rings = 0;
-        for (i = 0; i < args->buffer_count; i++) {
-                struct drm_gem_object *obj = object_list[i];
-                /* Compute new gpu domains and update invalidate/flush */
-                i915_gem_object_set_to_gpu_domain(obj, ring);
-        }
-        if (dev->invalidate_domains | dev->flush_domains) {
-#if WATCH_EXEC
-                DRM_INFO("%s: invalidate_domains %08x flush_domains %08x\n",
-                          __func__,
-                         dev->invalidate_domains,
-                         dev->flush_domains);
-#endif
-                i915_gem_flush(dev, file,
-                               dev->invalidate_domains,
-                               dev->flush_domains,
-                               dev_priv->mm.flush_rings);
-        }
        for (i = 0; i < args->buffer_count; i++) {
                struct drm_gem_object *obj = object_list[i];
@@ -4043,8 +4065,7 @@ i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment)
                        alignment = i915_gem_get_gtt_alignment(obj);
                if (obj_priv->gtt_offset & (alignment - 1)) {
                        WARN(obj_priv->pin_count,
-                             "bo is already pinned with incorrect alignment:"
+                             "bo is already pinned with incorrect alignment: offset=%x, req.alignment=%x\n",
-                             " offset=%x, req.alignment=%x\n",
                             obj_priv->gtt_offset, alignment);
                        ret = i915_gem_object_unbind(obj);
                        if (ret)
@@ -4856,17 +4877,24 @@ i915_gem_phys_pwrite(struct drm_device *dev, struct drm_gem_object *obj,
                     struct drm_file *file_priv)
 {
        struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
-        void *obj_addr;
+        void *vaddr = obj_priv->phys_obj->handle->vaddr + args->offset;
-        int ret;
+        char __user *user_data = (char __user *) (uintptr_t) args->data_ptr;
-        char __user *user_data;
-        user_data = (char __user *) (uintptr_t) args->data_ptr;
+        DRM_DEBUG_DRIVER("vaddr %p, %lld\n", vaddr, args->size);
-        obj_addr = obj_priv->phys_obj->handle->vaddr + args->offset;
-        DRM_DEBUG_DRIVER("obj_addr %p, %lld\n", obj_addr, args->size);
+        if (__copy_from_user_inatomic_nocache(vaddr, user_data, args->size)) {
-        ret = copy_from_user(obj_addr, user_data, args->size);
+                unsigned long unwritten;
-        if (ret)
-                return -EFAULT;
+                /* The physical object once assigned is fixed for the lifetime
+                 * of the obj, so we can safely drop the lock and continue
+                 * to access vaddr.
+                 */
+                mutex_unlock(&dev->struct_mutex);
+                unwritten = copy_from_user(vaddr, user_data, args->size);
+                mutex_lock(&dev->struct_mutex);
+                if (unwritten)
+                        return -EFAULT;
+        }
        drm_agp_chipset_flush(dev);
        return 0;
@@ -4900,9 +4928,7 @@ i915_gpu_is_active(struct drm_device *dev)
        int lists_empty;
        lists_empty = list_empty(&dev_priv->mm.flushing_list) &&
-                      list_empty(&dev_priv->render_ring.active_list) &&
+                      list_empty(&dev_priv->mm.active_list);
-                      list_empty(&dev_priv->bsd_ring.active_list) &&
-                      list_empty(&dev_priv->blt_ring.active_list);
        return !lists_empty;
 }
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index 43a4013f53fa..d8ae7d1d0cc6 100644
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -165,9 +165,7 @@ i915_gem_evict_everything(struct drm_device *dev)
        lists_empty = (list_empty(&dev_priv->mm.inactive_list) &&
                       list_empty(&dev_priv->mm.flushing_list) &&
-                       list_empty(&dev_priv->render_ring.active_list) &&
+                       list_empty(&dev_priv->mm.active_list));
-                       list_empty(&dev_priv->bsd_ring.active_list) &&
-                       list_empty(&dev_priv->blt_ring.active_list));
        if (lists_empty)
                return -ENOSPC;
@@ -184,9 +182,7 @@ i915_gem_evict_everything(struct drm_device *dev)
        lists_empty = (list_empty(&dev_priv->mm.inactive_list) &&
                       list_empty(&dev_priv->mm.flushing_list) &&
-                       list_empty(&dev_priv->render_ring.active_list) &&
+                       list_empty(&dev_priv->mm.active_list));
-                       list_empty(&dev_priv->bsd_ring.active_list) &&
-                       list_empty(&dev_priv->blt_ring.active_list));
        BUG_ON(!lists_empty);
        return 0;
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index 989c19d2d959..454c064f8ef7 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -862,8 +862,10 @@ int i915_restore_state(struct drm_device *dev)
        /* Clock gating state */
        intel_init_clock_gating(dev);
-        if (HAS_PCH_SPLIT(dev))
+        if (HAS_PCH_SPLIT(dev)) {
                ironlake_enable_drps(dev);
+                intel_init_emon(dev);
+        }
        /* Cache mode state */
        I915_WRITE (CACHE_MODE_0, dev_priv->saveCACHE_MODE_0 | 0xffff0000);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 990f065374b2..48d8fd686ea9 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1681,6 +1681,37 @@ static void ironlake_set_pll_edp(struct drm_crtc *crtc, int clock)
        udelay(500);
 }
+static void intel_fdi_normal_train(struct drm_crtc *crtc)
+{
+        struct drm_device *dev = crtc->dev;
+        struct drm_i915_private *dev_priv = dev->dev_private;
+        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+        int pipe = intel_crtc->pipe;
+        u32 reg, temp;
+        /* enable normal train */
+        reg = FDI_TX_CTL(pipe);
+        temp = I915_READ(reg);
+        temp &= ~FDI_LINK_TRAIN_NONE;
+        temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
+        I915_WRITE(reg, temp);
+        reg = FDI_RX_CTL(pipe);
+        temp = I915_READ(reg);
+        if (HAS_PCH_CPT(dev)) {
+                temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
+                temp |= FDI_LINK_TRAIN_NORMAL_CPT;
+        } else {
+                temp &= ~FDI_LINK_TRAIN_NONE;
+                temp |= FDI_LINK_TRAIN_NONE;
+        }
+        I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
+        /* wait one idle pattern time */
+        POSTING_READ(reg);
+        udelay(1000);
+}
 /* The FDI link training functions for ILK/Ibexpeak. */
 static void ironlake_fdi_link_train(struct drm_crtc *crtc)
 {
@@ -1767,27 +1798,6 @@ static void ironlake_fdi_link_train(struct drm_crtc *crtc)
        DRM_DEBUG_KMS("FDI train done\n");
-        /* enable normal train */
-        reg = FDI_TX_CTL(pipe);
-        temp = I915_READ(reg);
-        temp &= ~FDI_LINK_TRAIN_NONE;
-        temp |= FDI_LINK_TRAIN_NONE | FDI_TX_ENHANCE_FRAME_ENABLE;
-        I915_WRITE(reg, temp);
-        reg = FDI_RX_CTL(pipe);
-        temp = I915_READ(reg);
-        if (HAS_PCH_CPT(dev)) {
-                temp &= ~FDI_LINK_TRAIN_PATTERN_MASK_CPT;
-                temp |= FDI_LINK_TRAIN_NORMAL_CPT;
-        } else {
-                temp &= ~FDI_LINK_TRAIN_NONE;
-                temp |= FDI_LINK_TRAIN_NONE;
-        }
-        I915_WRITE(reg, temp | FDI_RX_ENHANCE_FRAME_ENABLE);
-        /* wait one idle pattern time */
-        POSTING_READ(reg);
-        udelay(1000);
 }
 static const int const snb_b_fdi_train_param [] = {
@@ -2090,6 +2100,8 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc)
        I915_WRITE(TRANS_VBLANK(pipe), I915_READ(VBLANK(pipe)));
        I915_WRITE(TRANS_VSYNC(pipe),  I915_READ(VSYNC(pipe)));
+        intel_fdi_normal_train(crtc);
        /* For PCH DP, enable TRANS_DP_CTL */
        if (HAS_PCH_CPT(dev) &&
            intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
@@ -2200,9 +2212,10 @@ static void ironlake_crtc_disable(struct drm_crtc *crtc)
        udelay(100);
        /* Ironlake workaround, disable clock pointer after downing FDI */
-        I915_WRITE(FDI_RX_CHICKEN(pipe),
+        if (HAS_PCH_IBX(dev))
-                   I915_READ(FDI_RX_CHICKEN(pipe) &
+                I915_WRITE(FDI_RX_CHICKEN(pipe),
-                             ~FDI_RX_PHASE_SYNC_POINTER_ENABLE));
+                           I915_READ(FDI_RX_CHICKEN(pipe) &
+                                     ~FDI_RX_PHASE_SYNC_POINTER_ENABLE));
        /* still set train pattern 1 */
        reg = FDI_TX_CTL(pipe);
@@ -5581,20 +5594,19 @@ void ironlake_enable_drps(struct drm_device *dev)
        fmin = (rgvmodectl & MEMMODE_FMIN_MASK);
        fstart = (rgvmodectl & MEMMODE_FSTART_MASK) >>
                MEMMODE_FSTART_SHIFT;
-        fstart = fmax;
        vstart = (I915_READ(PXVFREQ_BASE + (fstart * 4)) & PXVFREQ_PX_MASK) >>
                PXVFREQ_PX_SHIFT;
-        dev_priv->fmax = fstart; /* IPS callback will increase this */
+        dev_priv->fmax = fmax; /* IPS callback will increase this */
        dev_priv->fstart = fstart;
-        dev_priv->max_delay = fmax;
+        dev_priv->max_delay = fstart;
        dev_priv->min_delay = fmin;
        dev_priv->cur_delay = fstart;
-        DRM_DEBUG_DRIVER("fmax: %d, fmin: %d, fstart: %d\n", fmax, fmin,
+        DRM_DEBUG_DRIVER("fmax: %d, fmin: %d, fstart: %d\n",
-                         fstart);
+                         fmax, fmin, fstart);
        I915_WRITE(MEMINTREN, MEMINT_CX_SUPR_EN | MEMINT_EVAL_CHG_EN);
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 891f4f1d63b1..c8e005553310 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1517,7 +1517,7 @@ g4x_dp_detect(struct intel_dp *intel_dp)
                        status = connector_status_connected;
        }
-        return bit;
+        return status;
 }
 /**
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 9af9f86a8765..21551fe74541 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -296,6 +296,7 @@ extern void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
 extern void intel_init_clock_gating(struct drm_device *dev);
 extern void ironlake_enable_drps(struct drm_device *dev);
 extern void ironlake_disable_drps(struct drm_device *dev);
+extern void intel_init_emon(struct drm_device *dev);
 extern int intel_pin_and_fence_fb_obj(struct drm_device *dev,
                                      struct drm_gem_object *obj,
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index f1a649990ea9..4324a326f98e 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -481,11 +481,8 @@ static int intel_lvds_get_modes(struct drm_connector *connector)
        struct drm_device *dev = connector->dev;
        struct drm_display_mode *mode;
-        if (intel_lvds->edid) {
+        if (intel_lvds->edid)
-                drm_mode_connector_update_edid_property(connector,
-                                                        intel_lvds->edid);
                return drm_add_edid_modes(connector, intel_lvds->edid);
-        }
        mode = drm_mode_duplicate(dev, intel_lvds->fixed_mode);
        if (mode == 0)
@@ -939,7 +936,16 @@ void intel_lvds_init(struct drm_device *dev)
         */
        intel_lvds->edid = drm_get_edid(connector,
                                        &dev_priv->gmbus[pin].adapter);
+        if (intel_lvds->edid) {
+                if (drm_add_edid_modes(connector,
+                                       intel_lvds->edid)) {
+                        drm_mode_connector_update_edid_property(connector,
+                                                                intel_lvds->edid);
+                } else {
+                        kfree(intel_lvds->edid);
+                        intel_lvds->edid = NULL;
+                }
+        }
        if (!intel_lvds->edid) {
                /* Didn't get an EDID, so
                 * Set wide sync ranges so we get all modes
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
index 917c7dc3cd6b..9b0d9a867aea 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -512,6 +512,6 @@ int intel_opregion_setup(struct drm_device *dev)
        return 0;
 err_out:
-        iounmap(opregion->header);
+        iounmap(base);
        return err;
 }
diff --git a/drivers/gpu/drm/i915/intel_overlay.c b/drivers/gpu/drm/i915/intel_overlay.c
index afb96d25219a..02ff0a481f47 100644
--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -946,7 +946,9 @@ static int check_overlay_src(struct drm_device *dev,
 {
        int uv_hscale = uv_hsubsampling(rec->flags);
        int uv_vscale = uv_vsubsampling(rec->flags);
-        u32 stride_mask, depth, tmp;
+        u32 stride_mask;
+        int depth;
+        u32 tmp;
        /* check src dimensions */
        if (IS_845G(dev) || IS_I830(dev)) {
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 09f2dc353ae2..b83306f9244b 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -177,7 +177,7 @@ static int init_ring_common(struct drm_device *dev,
        I915_WRITE_CTL(ring,
                        ((ring->gem_object->size - PAGE_SIZE) & RING_NR_PAGES)
-                        | RING_NO_REPORT | RING_VALID);
+                        | RING_REPORT_64K | RING_VALID);
        head = I915_READ_HEAD(ring) & HEAD_ADDR;
        /* If the head is still not zero, the ring is dead */
@@ -654,6 +654,10 @@ void intel_cleanup_ring_buffer(struct drm_device *dev,
        i915_gem_object_unpin(ring->gem_object);
        drm_gem_object_unreference(ring->gem_object);
        ring->gem_object = NULL;
+        if (ring->cleanup)
+                ring->cleanup(ring);
        cleanup_status_page(dev, ring);
 }
@@ -688,6 +692,17 @@ int intel_wait_ring_buffer(struct drm_device *dev,
 {
        unsigned long end;
        drm_i915_private_t *dev_priv = dev->dev_private;
+        u32 head;
+        head = intel_read_status_page(ring, 4);
+        if (head) {
+                ring->head = head & HEAD_ADDR;
+                ring->space = ring->head - (ring->tail + 8);
+                if (ring->space < 0)
+                        ring->space += ring->size;
+                if (ring->space >= n)
+                        return 0;
+        }
        trace_i915_ring_wait_begin (dev);
        end = jiffies + 3 * HZ;
@@ -854,19 +869,125 @@ blt_ring_put_user_irq(struct drm_device *dev,
        /* do nothing */
 }
+/* Workaround for some stepping of SNB,
+ * each time when BLT engine ring tail moved,
+ * the first command in the ring to be parsed
+ * should be MI_BATCH_BUFFER_START
+ */
+#define NEED_BLT_WORKAROUND(dev) \
+        (IS_GEN6(dev) && (dev->pdev->revision < 8))
+static inline struct drm_i915_gem_object *
+to_blt_workaround(struct intel_ring_buffer *ring)
+{
+        return ring->private;
+}
+static int blt_ring_init(struct drm_device *dev,
+                         struct intel_ring_buffer *ring)
+{
+        if (NEED_BLT_WORKAROUND(dev)) {
+                struct drm_i915_gem_object *obj;
+                u32 __iomem *ptr;
+                int ret;
+                obj = to_intel_bo(i915_gem_alloc_object(dev, 4096));
+                if (obj == NULL)
+                        return -ENOMEM;
+                ret = i915_gem_object_pin(&obj->base, 4096);
+                if (ret) {
+                        drm_gem_object_unreference(&obj->base);
+                        return ret;
+                }
+                ptr = kmap(obj->pages[0]);
+                iowrite32(MI_BATCH_BUFFER_END, ptr);
+                iowrite32(MI_NOOP, ptr+1);
+                kunmap(obj->pages[0]);
+                ret = i915_gem_object_set_to_gtt_domain(&obj->base, false);
+                if (ret) {
+                        i915_gem_object_unpin(&obj->base);
+                        drm_gem_object_unreference(&obj->base);
+                        return ret;
+                }
+                ring->private = obj;
+        }
+        return init_ring_common(dev, ring);
+}
+static void blt_ring_begin(struct drm_device *dev,
+                           struct intel_ring_buffer *ring,
+                          int num_dwords)
+{
+        if (ring->private) {
+                intel_ring_begin(dev, ring, num_dwords+2);
+                intel_ring_emit(dev, ring, MI_BATCH_BUFFER_START);
+                intel_ring_emit(dev, ring, to_blt_workaround(ring)->gtt_offset);
+        } else
+                intel_ring_begin(dev, ring, 4);
+}
+static void blt_ring_flush(struct drm_device *dev,
+                           struct intel_ring_buffer *ring,
+                           u32 invalidate_domains,
+                           u32 flush_domains)
+{
+        blt_ring_begin(dev, ring, 4);
+        intel_ring_emit(dev, ring, MI_FLUSH_DW);
+        intel_ring_emit(dev, ring, 0);
+        intel_ring_emit(dev, ring, 0);
+        intel_ring_emit(dev, ring, 0);
+        intel_ring_advance(dev, ring);
+}
+static u32
+blt_ring_add_request(struct drm_device *dev,
+                     struct intel_ring_buffer *ring,
+                     u32 flush_domains)
+{
+        u32 seqno = i915_gem_get_seqno(dev);
+        blt_ring_begin(dev, ring, 4);
+        intel_ring_emit(dev, ring, MI_STORE_DWORD_INDEX);
+        intel_ring_emit(dev, ring,
+                        I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
+        intel_ring_emit(dev, ring, seqno);
+        intel_ring_emit(dev, ring, MI_USER_INTERRUPT);
+        intel_ring_advance(dev, ring);
+        DRM_DEBUG_DRIVER("%s %d\n", ring->name, seqno);
+        return seqno;
+}
+static void blt_ring_cleanup(struct intel_ring_buffer *ring)
+{
+        if (!ring->private)
+                return;
+        i915_gem_object_unpin(ring->private);
+        drm_gem_object_unreference(ring->private);
+        ring->private = NULL;
+}
 static const struct intel_ring_buffer gen6_blt_ring = {
       .name                    = "blt ring",
       .id                      = RING_BLT,
       .mmio_base               = BLT_RING_BASE,
       .size                    = 32 * PAGE_SIZE,
-       .init                    = init_ring_common,
+       .init                    = blt_ring_init,
       .write_tail              = ring_write_tail,
-       .flush                   = gen6_ring_flush,
+       .flush                   = blt_ring_flush,
-       .add_request             = ring_add_request,
+       .add_request             = blt_ring_add_request,
       .get_seqno               = ring_status_page_get_seqno,
       .user_irq_get            = blt_ring_get_user_irq,
       .user_irq_put            = blt_ring_put_user_irq,
       .dispatch_gem_execbuffer = gen6_ring_dispatch_gem_execbuffer,
+       .cleanup                 = blt_ring_cleanup,
 };
 int intel_init_render_ring_buffer(struct drm_device *dev)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index a05aff0e5764..3126c2681983 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -63,6 +63,7 @@ struct  intel_ring_buffer {
                        struct drm_i915_gem_execbuffer2 *exec,
                        struct drm_clip_rect *cliprects,
                        uint64_t exec_offset);
+        void            (*cleanup)(struct intel_ring_buffer *ring);
        /**
         * List of objects currently involved in rendering from the
@@ -98,6 +99,8 @@ struct  intel_ring_buffer {
        wait_queue_head_t irq_queue;
        drm_local_map_t map;
+        void *private;
 };
 static inline u32
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index f12a5b3ec050..488c36c8f5e6 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -2033,7 +2033,7 @@ int evergreen_irq_set(struct radeon_device *rdev)
        u32 grbm_int_cntl = 0;
        if (!rdev->irq.installed) {
-                WARN(1, "Can't enable IRQ/MSI because no handler is installed.\n");
+                WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
                return -EINVAL;
        }
        /* don't enable anything if the ih is disabled */
@@ -2295,6 +2295,7 @@ restart_ih:
                        case 0: /* D1 vblank */
                                if (disp_int & LB_D1_VBLANK_INTERRUPT) {
                                        drm_handle_vblank(rdev->ddev, 0);
+                                        rdev->pm.vblank_sync = true;
                                        wake_up(&rdev->irq.vblank_queue);
                                        disp_int &= ~LB_D1_VBLANK_INTERRUPT;
                                        DRM_DEBUG("IH: D1 vblank\n");
@@ -2316,6 +2317,7 @@ restart_ih:
                        case 0: /* D2 vblank */
                                if (disp_int_cont & LB_D2_VBLANK_INTERRUPT) {
                                        drm_handle_vblank(rdev->ddev, 1);
+                                        rdev->pm.vblank_sync = true;
                                        wake_up(&rdev->irq.vblank_queue);
                                        disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
                                        DRM_DEBUG("IH: D2 vblank\n");
@@ -2337,6 +2339,7 @@ restart_ih:
                        case 0: /* D3 vblank */
                                if (disp_int_cont2 & LB_D3_VBLANK_INTERRUPT) {
                                        drm_handle_vblank(rdev->ddev, 2);
+                                        rdev->pm.vblank_sync = true;
                                        wake_up(&rdev->irq.vblank_queue);
                                        disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
                                        DRM_DEBUG("IH: D3 vblank\n");
@@ -2358,6 +2361,7 @@ restart_ih:
                        case 0: /* D4 vblank */
                                if (disp_int_cont3 & LB_D4_VBLANK_INTERRUPT) {
                                        drm_handle_vblank(rdev->ddev, 3);
+                                        rdev->pm.vblank_sync = true;
                                        wake_up(&rdev->irq.vblank_queue);
                                        disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
                                        DRM_DEBUG("IH: D4 vblank\n");
@@ -2379,6 +2383,7 @@ restart_ih:
                        case 0: /* D5 vblank */
                                if (disp_int_cont4 & LB_D5_VBLANK_INTERRUPT) {
                                        drm_handle_vblank(rdev->ddev, 4);
+                                        rdev->pm.vblank_sync = true;
                                        wake_up(&rdev->irq.vblank_queue);
                                        disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
                                        DRM_DEBUG("IH: D5 vblank\n");
@@ -2400,6 +2405,7 @@ restart_ih:
                        case 0: /* D6 vblank */
                                if (disp_int_cont5 & LB_D6_VBLANK_INTERRUPT) {
                                        drm_handle_vblank(rdev->ddev, 5);
+                                        rdev->pm.vblank_sync = true;
                                        wake_up(&rdev->irq.vblank_queue);
                                        disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
                                        DRM_DEBUG("IH: D6 vblank\n");
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 0e8f28a68927..8e10aa9f74b0 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -442,7 +442,7 @@ int r100_pci_gart_init(struct radeon_device *rdev)
        int r;
        if (rdev->gart.table.ram.ptr) {
-                WARN(1, "R100 PCI GART already initialized.\n");
+                WARN(1, "R100 PCI GART already initialized\n");
                return 0;
        }
        /* Initialize common gart structure */
@@ -516,7 +516,7 @@ int r100_irq_set(struct radeon_device *rdev)
        uint32_t tmp = 0;
        if (!rdev->irq.installed) {
-                WARN(1, "Can't enable IRQ/MSI because no handler is installed.\n");
+                WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
                WREG32(R_000040_GEN_INT_CNTL, 0);
                return -EINVAL;
        }
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 34527e600fe9..cde1d3480d93 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -91,7 +91,7 @@ int rv370_pcie_gart_init(struct radeon_device *rdev)
        int r;
        if (rdev->gart.table.vram.robj) {
-                WARN(1, "RV370 PCIE GART already initialized.\n");
+                WARN(1, "RV370 PCIE GART already initialized\n");
                return 0;
        }
        /* Initialize common gart structure */
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 33952a12f0a3..0f806cc7dc75 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -97,14 +97,8 @@ u32 rv6xx_get_temp(struct radeon_device *rdev)
 {
        u32 temp = (RREG32(CG_THERMAL_STATUS) & ASIC_T_MASK) >>
                ASIC_T_SHIFT;
-        u32 actual_temp = 0;
-        if ((temp >> 7) & 1)
+        return temp * 1000;
-                actual_temp = 0;
-        else
-                actual_temp = (temp >> 1) & 0xff;
-        return actual_temp * 1000;
 }
 void r600_pm_get_dynpm_state(struct radeon_device *rdev)
@@ -919,7 +913,7 @@ int r600_pcie_gart_init(struct radeon_device *rdev)
        int r;
        if (rdev->gart.table.vram.robj) {
-                WARN(1, "R600 PCIE GART already initialized.\n");
+                WARN(1, "R600 PCIE GART already initialized\n");
                return 0;
        }
        /* Initialize common gart structure */
@@ -2995,7 +2989,7 @@ int r600_irq_set(struct radeon_device *rdev)
        u32 hdmi1, hdmi2;
        if (!rdev->irq.installed) {
-                WARN(1, "Can't enable IRQ/MSI because no handler is installed.\n");
+                WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
                return -EINVAL;
        }
        /* don't enable anything if the ih is disabled */
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 04cac7ec9039..87ead090c7d5 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -526,8 +526,6 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
        if (crev < 2)
                return false;
-        router.valid = false;
        obj_header = (ATOM_OBJECT_HEADER *) (ctx->bios + data_offset);
        path_obj = (ATOM_DISPLAY_OBJECT_PATH_TABLE *)
            (ctx->bios + data_offset +
@@ -624,6 +622,8 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
                        if (connector_type == DRM_MODE_CONNECTOR_Unknown)
                                continue;
+                        router.ddc_valid = false;
+                        router.cd_valid = false;
                        for (j = 0; j < ((le16_to_cpu(path->usSize) - 8) / 2); j++) {
                                uint8_t grph_obj_id, grph_obj_num, grph_obj_type;
@@ -647,9 +647,8 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
                                                                 usDeviceTag));
                                } else if (grph_obj_type == GRAPH_OBJECT_TYPE_ROUTER) {
-                                        router.valid = false;
                                        for (k = 0; k < router_obj->ucNumberOfObjects; k++) {
-                                                u16 router_obj_id = le16_to_cpu(router_obj->asObjects[j].usObjectID);
+                                                u16 router_obj_id = le16_to_cpu(router_obj->asObjects[k].usObjectID);
                                                if (le16_to_cpu(path->usGraphicObjIds[j]) == router_obj_id) {
                                                        ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
                                                                (ctx->bios + data_offset +
@@ -657,6 +656,7 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
                                                        ATOM_I2C_RECORD *i2c_record;
                                                        ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
                                                        ATOM_ROUTER_DDC_PATH_SELECT_RECORD *ddc_path;
+                                                        ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *cd_path;
                                                        ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *router_src_dst_table =
                                                                (ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *)
                                                                (ctx->bios + data_offset +
@@ -690,10 +690,18 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
                                                                case ATOM_ROUTER_DDC_PATH_SELECT_RECORD_TYPE:
                                                                        ddc_path = (ATOM_ROUTER_DDC_PATH_SELECT_RECORD *)
                                                                                record;
-                                                                        router.valid = true;
+                                                                        router.ddc_valid = true;
-                                                                        router.mux_type = ddc_path->ucMuxType;
+                                                                        router.ddc_mux_type = ddc_path->ucMuxType;
-                                                                        router.mux_control_pin = ddc_path->ucMuxControlPin;
+                                                                        router.ddc_mux_control_pin = ddc_path->ucMuxControlPin;
-                                                                        router.mux_state = ddc_path->ucMuxState[enum_id];
+                                                                        router.ddc_mux_state = ddc_path->ucMuxState[enum_id];
+                                                                        break;
+                                                                case ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD_TYPE:
+                                                                        cd_path = (ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *)
+                                                                                record;
+                                                                        router.cd_valid = true;
+                                                                        router.cd_mux_type = cd_path->ucMuxType;
+                                                                        router.cd_mux_control_pin = cd_path->ucMuxControlPin;
+                                                                        router.cd_mux_state = cd_path->ucMuxState[enum_id];
                                                                        break;
                                                                }
                                                                record = (ATOM_COMMON_RECORD_HEADER *)
@@ -860,7 +868,8 @@ bool radeon_get_atom_connector_info_from_supported_devices_table(struct
        size_t bc_size = sizeof(*bios_connectors) * ATOM_MAX_SUPPORTED_DEVICE;
        struct radeon_router router;
-        router.valid = false;
+        router.ddc_valid = false;
+        router.cd_valid = false;
        bios_connectors = kzalloc(bc_size, GFP_KERNEL);
        if (!bios_connectors)
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 4dac4b0a02ee..fe6c74780f18 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -183,13 +183,13 @@ radeon_connector_analog_encoder_conflict_solve(struct drm_connector *connector,
                                        continue;
                                if (priority == true) {
-                                        DRM_INFO("1: conflicting encoders switching off %s\n", drm_get_connector_name(conflict));
+                                        DRM_DEBUG_KMS("1: conflicting encoders switching off %s\n", drm_get_connector_name(conflict));
-                                        DRM_INFO("in favor of %s\n", drm_get_connector_name(connector));
+                                        DRM_DEBUG_KMS("in favor of %s\n", drm_get_connector_name(connector));
                                        conflict->status = connector_status_disconnected;
                                        radeon_connector_update_scratch_regs(conflict, connector_status_disconnected);
                                } else {
-                                        DRM_INFO("2: conflicting encoders switching off %s\n", drm_get_connector_name(connector));
+                                        DRM_DEBUG_KMS("2: conflicting encoders switching off %s\n", drm_get_connector_name(connector));
-                                        DRM_INFO("in favor of %s\n", drm_get_connector_name(conflict));
+                                        DRM_DEBUG_KMS("in favor of %s\n", drm_get_connector_name(conflict));
                                        current_status = connector_status_disconnected;
                                }
                                break;
@@ -432,13 +432,13 @@ static void radeon_fixup_lvds_native_mode(struct drm_encoder *encoder,
                            mode->vdisplay == native_mode->vdisplay) {
                                *native_mode = *mode;
                                drm_mode_set_crtcinfo(native_mode, CRTC_INTERLACE_HALVE_V);
-                                DRM_INFO("Determined LVDS native mode details from EDID\n");
+                                DRM_DEBUG_KMS("Determined LVDS native mode details from EDID\n");
                                break;
                        }
                }
        }
        if (!native_mode->clock) {
-                DRM_INFO("No LVDS native mode details, disabling RMX\n");
+                DRM_DEBUG_KMS("No LVDS native mode details, disabling RMX\n");
                radeon_encoder->rmx_type = RMX_OFF;
        }
 }
@@ -1116,7 +1116,7 @@ radeon_add_atom_connector(struct drm_device *dev,
                                radeon_connector->shared_ddc = true;
                                shared_ddc = true;
                        }
-                        if (radeon_connector->router_bus && router->valid &&
+                        if (radeon_connector->router_bus && router->ddc_valid &&
                            (radeon_connector->router.router_id == router->router_id)) {
                                radeon_connector->shared_ddc = false;
                                shared_ddc = false;
@@ -1136,7 +1136,7 @@ radeon_add_atom_connector(struct drm_device *dev,
        radeon_connector->connector_object_id = connector_object_id;
        radeon_connector->hpd = *hpd;
        radeon_connector->router = *router;
-        if (router->valid) {
+        if (router->ddc_valid || router->cd_valid) {
                radeon_connector->router_bus = radeon_i2c_lookup(rdev, &router->i2c_info);
                if (!radeon_connector->router_bus)
                        goto failed;
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 0383631da69c..1df4dc6c063c 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -315,10 +315,14 @@ static void radeon_print_display_setup(struct drm_device *dev)
                                 radeon_connector->ddc_bus->rec.en_data_reg,
                                 radeon_connector->ddc_bus->rec.y_clk_reg,
                                 radeon_connector->ddc_bus->rec.y_data_reg);
-                        if (radeon_connector->router_bus)
+                        if (radeon_connector->router.ddc_valid)
                                DRM_INFO("  DDC Router 0x%x/0x%x\n",
-                                         radeon_connector->router.mux_control_pin,
+                                         radeon_connector->router.ddc_mux_control_pin,
-                                         radeon_connector->router.mux_state);
+                                         radeon_connector->router.ddc_mux_state);
+                        if (radeon_connector->router.cd_valid)
+                                DRM_INFO("  Clock/Data Router 0x%x/0x%x\n",
+                                         radeon_connector->router.cd_mux_control_pin,
+                                         radeon_connector->router.cd_mux_state);
                } else {
                        if (connector->connector_type == DRM_MODE_CONNECTOR_VGA ||
                            connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
@@ -398,8 +402,8 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
        int ret = 0;
        /* on hw with routers, select right port */
-        if (radeon_connector->router.valid)
+        if (radeon_connector->router.ddc_valid)
-                radeon_router_select_port(radeon_connector);
+                radeon_router_select_ddc_port(radeon_connector);
        if ((radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
            (radeon_connector->base.connector_type == DRM_MODE_CONNECTOR_eDP)) {
@@ -432,8 +436,8 @@ static int radeon_ddc_dump(struct drm_connector *connector)
        int ret = 0;
        /* on hw with routers, select right port */
-        if (radeon_connector->router.valid)
+        if (radeon_connector->router.ddc_valid)
-                radeon_router_select_port(radeon_connector);
+                radeon_router_select_ddc_port(radeon_connector);
        if (!radeon_connector->ddc_bus)
                return -1;
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index ae58b6849a2e..f678257c42e6 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -1520,6 +1520,7 @@ radeon_atom_dac_detect(struct drm_encoder *encoder, struct drm_connector *connec
 static void radeon_atom_encoder_prepare(struct drm_encoder *encoder)
 {
        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+        struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
        if (radeon_encoder->active_device &
            (ATOM_DEVICE_DFP_SUPPORT | ATOM_DEVICE_LCD_SUPPORT)) {
@@ -1531,6 +1532,13 @@ static void radeon_atom_encoder_prepare(struct drm_encoder *encoder)
        radeon_atom_output_lock(encoder, true);
        radeon_atom_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
+        /* select the clock/data port if it uses a router */
+        if (connector) {
+                struct radeon_connector *radeon_connector = to_radeon_connector(connector);
+                if (radeon_connector->router.cd_valid)
+                        radeon_router_select_cd_port(radeon_connector);
+        }
        /* this is needed for the pll/ss setup to work correctly in some cases */
        atombios_set_encoder_crtc_source(encoder);
 }
@@ -1547,6 +1555,23 @@ static void radeon_atom_encoder_disable(struct drm_encoder *encoder)
        struct radeon_device *rdev = dev->dev_private;
        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
        struct radeon_encoder_atom_dig *dig;
+        /* check for pre-DCE3 cards with shared encoders;
+         * can't really use the links individually, so don't disable
+         * the encoder if it's in use by another connector
+         */
+        if (!ASIC_IS_DCE3(rdev)) {
+                struct drm_encoder *other_encoder;
+                struct radeon_encoder *other_radeon_encoder;
+                list_for_each_entry(other_encoder, &dev->mode_config.encoder_list, head) {
+                        other_radeon_encoder = to_radeon_encoder(other_encoder);
+                        if ((radeon_encoder->encoder_id == other_radeon_encoder->encoder_id) &&
+                            drm_helper_encoder_in_use(other_encoder))
+                                goto disable_done;
+                }
+        }
        radeon_atom_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
        switch (radeon_encoder->encoder_id) {
@@ -1586,6 +1611,7 @@ static void radeon_atom_encoder_disable(struct drm_encoder *encoder)
                break;
        }
+disable_done:
        if (radeon_encoder_is_digital(encoder)) {
                if (atombios_get_encoder_mode(encoder) == ATOM_ENCODER_MODE_HDMI)
                        r600_hdmi_disable(encoder);
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index 216392d0353b..daacb281dfaf 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -240,7 +240,8 @@ retry:
                 */
                if (seq == rdev->fence_drv.last_seq && radeon_gpu_is_lockup(rdev)) {
                        /* good news we believe it's a lockup */
-                        WARN(1, "GPU lockup (waiting for 0x%08X last fence id 0x%08X)\n", fence->seq, seq);
+                        WARN(1, "GPU lockup (waiting for 0x%08X last fence id 0x%08X)\n",
+                             fence->seq, seq);
                        /* FIXME: what should we do ? marking everyone
                         * as signaled for now
                         */
diff --git a/drivers/gpu/drm/radeon/radeon_i2c.c b/drivers/gpu/drm/radeon/radeon_i2c.c
index 6a13ee38a5b9..0cfbba02c4d0 100644
--- a/drivers/gpu/drm/radeon/radeon_i2c.c
+++ b/drivers/gpu/drm/radeon/radeon_i2c.c
@@ -53,8 +53,8 @@ bool radeon_ddc_probe(struct radeon_connector *radeon_connector)
        };
        /* on hw with routers, select right port */
-        if (radeon_connector->router.valid)
+        if (radeon_connector->router.ddc_valid)
-                radeon_router_select_port(radeon_connector);
+                radeon_router_select_ddc_port(radeon_connector);
        ret = i2c_transfer(&radeon_connector->ddc_bus->adapter, msgs, 2);
        if (ret == 2)
@@ -1084,26 +1084,51 @@ void radeon_i2c_put_byte(struct radeon_i2c_chan *i2c_bus,
                          addr, val);
 }
-/* router switching */
+/* ddc router switching */
-void radeon_router_select_port(struct radeon_connector *radeon_connector)
+void radeon_router_select_ddc_port(struct radeon_connector *radeon_connector)
 {
        u8 val;
-        if (!radeon_connector->router.valid)
+        if (!radeon_connector->router.ddc_valid)
                return;
        radeon_i2c_get_byte(radeon_connector->router_bus,
                            radeon_connector->router.i2c_addr,
                            0x3, &val);
-        val &= radeon_connector->router.mux_control_pin;
+        val &= ~radeon_connector->router.ddc_mux_control_pin;
        radeon_i2c_put_byte(radeon_connector->router_bus,
                            radeon_connector->router.i2c_addr,
                            0x3, val);
        radeon_i2c_get_byte(radeon_connector->router_bus,
                            radeon_connector->router.i2c_addr,
                            0x1, &val);
-        val &= radeon_connector->router.mux_control_pin;
+        val &= ~radeon_connector->router.ddc_mux_control_pin;
-        val |= radeon_connector->router.mux_state;
+        val |= radeon_connector->router.ddc_mux_state;
+        radeon_i2c_put_byte(radeon_connector->router_bus,
+                            radeon_connector->router.i2c_addr,
+                            0x1, val);
+}
+/* clock/data router switching */
+void radeon_router_select_cd_port(struct radeon_connector *radeon_connector)
+{
+        u8 val;
+        if (!radeon_connector->router.cd_valid)
+                return;
+        radeon_i2c_get_byte(radeon_connector->router_bus,
+                            radeon_connector->router.i2c_addr,
+                            0x3, &val);
+        val &= ~radeon_connector->router.cd_mux_control_pin;
+        radeon_i2c_put_byte(radeon_connector->router_bus,
+                            radeon_connector->router.i2c_addr,
+                            0x3, val);
+        radeon_i2c_get_byte(radeon_connector->router_bus,
+                            radeon_connector->router.i2c_addr,
+                            0x1, &val);
+        val &= ~radeon_connector->router.cd_mux_control_pin;
+        val |= radeon_connector->router.cd_mux_state;
        radeon_i2c_put_byte(radeon_connector->router_bus,
                            radeon_connector->router.i2c_addr,
                            0x1, val);
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 92457163d070..680f57644e86 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -401,13 +401,19 @@ struct radeon_hpd {
 };
 struct radeon_router {
-        bool valid;
        u32 router_id;
        struct radeon_i2c_bus_rec i2c_info;
        u8 i2c_addr;
-        u8 mux_type;
+        /* i2c mux */
-        u8 mux_control_pin;
+        bool ddc_valid;
-        u8 mux_state;
+        u8 ddc_mux_type;
+        u8 ddc_mux_control_pin;
+        u8 ddc_mux_state;
+        /* clock/data mux */
+        bool cd_valid;
+        u8 cd_mux_type;
+        u8 cd_mux_control_pin;
+        u8 cd_mux_state;
 };
 struct radeon_connector {
@@ -488,7 +494,8 @@ extern void radeon_i2c_put_byte(struct radeon_i2c_chan *i2c,
                                u8 slave_addr,
                                u8 addr,
                                u8 val);
-extern void radeon_router_select_port(struct radeon_connector *radeon_connector);
+extern void radeon_router_select_ddc_port(struct radeon_connector *radeon_connector);
+extern void radeon_router_select_cd_port(struct radeon_connector *radeon_connector);
 extern bool radeon_ddc_probe(struct radeon_connector *radeon_connector);
 extern int radeon_ddc_get_modes(struct radeon_connector *radeon_connector);
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index d7ab91416410..8eb183466015 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -102,6 +102,8 @@ int radeon_bo_create(struct radeon_device *rdev, struct drm_gem_object *gobj,
                type = ttm_bo_type_device;
        }
        *bo_ptr = NULL;
+retry:
        bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL);
        if (bo == NULL)
                return -ENOMEM;
@@ -109,8 +111,6 @@ int radeon_bo_create(struct radeon_device *rdev, struct drm_gem_object *gobj,
        bo->gobj = gobj;
        bo->surface_reg = -1;
        INIT_LIST_HEAD(&bo->list);
-retry:
        radeon_ttm_placement_from_domain(bo, domain);
        /* Kernel allocation are uninterruptible */
        mutex_lock(&rdev->vram_mutex);
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index fe95bb35317e..01c2c736a1da 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -689,7 +689,8 @@ static int radeon_ttm_backend_bind(struct ttm_backend *backend,
        gtt = container_of(backend, struct radeon_ttm_backend, backend);
        gtt->offset = bo_mem->start << PAGE_SHIFT;
        if (!gtt->num_pages) {
-                WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n", gtt->num_pages, bo_mem, backend);
+                WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n",
+                     gtt->num_pages, bo_mem, backend);
        }
        r = radeon_gart_bind(gtt->rdev, gtt->offset,
                             gtt->num_pages, gtt->pages);
diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
index f683e51a2a06..5512e4e5e636 100644
--- a/drivers/gpu/drm/radeon/rs400.c
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -78,7 +78,7 @@ int rs400_gart_init(struct radeon_device *rdev)
        int r;
        if (rdev->gart.table.ram.ptr) {
-                WARN(1, "RS400 GART already initialized.\n");
+                WARN(1, "RS400 GART already initialized\n");
                return 0;
        }
        /* Check gart size */
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index b091a1f6fa4e..f1c6e02c2e6b 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -375,7 +375,7 @@ int rs600_gart_init(struct radeon_device *rdev)
        int r;
        if (rdev->gart.table.vram.robj) {
-                WARN(1, "RS600 GART already initialized.\n");
+                WARN(1, "RS600 GART already initialized\n");
                return 0;
        }
        /* Initialize common gart structure */
@@ -505,7 +505,7 @@ int rs600_irq_set(struct radeon_device *rdev)
                ~S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
        if (!rdev->irq.installed) {
-                WARN(1, "Can't enable IRQ/MSI because no handler is installed.\n");
+                WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
                WREG32(R_000040_GEN_INT_CNTL, 0);
                return -EINVAL;
        }
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index a1cb783c7131..3ca77dc03915 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -27,14 +27,6 @@
 /*
 * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
 */
-/* Notes:
- *
- * We store bo pointer in drm_mm_node struct so we know which bo own a
- * specific node. There is no protection on the pointer, thus to make
- * sure things don't go berserk you have to access this pointer while
- * holding the global lru lock and make sure anytime you free a node you
- * reset the pointer to NULL.
- */
 #include "ttm/ttm_module.h"
 #include "ttm/ttm_bo_driver.h"
@@ -45,6 +37,7 @@
 #include <linux/mm.h>
 #include <linux/file.h>
 #include <linux/module.h>
+#include <asm/atomic.h>
 #define TTM_ASSERT_LOCKED(param)
 #define TTM_DEBUG(fmt, arg...)
@@ -452,6 +445,11 @@ static void ttm_bo_cleanup_memtype_use(struct ttm_buffer_object *bo)
        ttm_bo_mem_put(bo, &bo->mem);
        atomic_set(&bo->reserved, 0);
+        /*
+         * Make processes trying to reserve really pick it up.
+         */
+        smp_mb__after_atomic_dec();
        wake_up_all(&bo->event_queue);
 }
@@ -460,7 +458,7 @@ static void ttm_bo_cleanup_refs_or_queue(struct ttm_buffer_object *bo)
        struct ttm_bo_device *bdev = bo->bdev;
        struct ttm_bo_global *glob = bo->glob;
        struct ttm_bo_driver *driver;
-        void *sync_obj;
+        void *sync_obj = NULL;
        void *sync_obj_arg;
        int put_count;
        int ret;
@@ -495,17 +493,20 @@ static void ttm_bo_cleanup_refs_or_queue(struct ttm_buffer_object *bo)
                spin_lock(&glob->lru_lock);
        }
 queue:
-        sync_obj = bo->sync_obj;
-        sync_obj_arg = bo->sync_obj_arg;
        driver = bdev->driver;
+        if (bo->sync_obj)
+                sync_obj = driver->sync_obj_ref(bo->sync_obj);
+        sync_obj_arg = bo->sync_obj_arg;
        kref_get(&bo->list_kref);
        list_add_tail(&bo->ddestroy, &bdev->ddestroy);
        spin_unlock(&glob->lru_lock);
        spin_unlock(&bo->lock);
-        if (sync_obj)
+        if (sync_obj) {
                driver->sync_obj_flush(sync_obj, sync_obj_arg);
+                driver->sync_obj_unref(&sync_obj);
+        }
        schedule_delayed_work(&bdev->wq,
                              ((HZ / 100) < 1) ? 1 : HZ / 100);
 }
@@ -822,7 +823,6 @@ static int ttm_bo_mem_force_space(struct ttm_buffer_object *bo,
                                        bool no_wait_gpu)
 {
        struct ttm_bo_device *bdev = bo->bdev;
-        struct ttm_bo_global *glob = bdev->glob;
        struct ttm_mem_type_manager *man = &bdev->man[mem_type];
        int ret;
@@ -832,12 +832,6 @@ static int ttm_bo_mem_force_space(struct ttm_buffer_object *bo,
                        return ret;
                if (mem->mm_node)
                        break;
-                spin_lock(&glob->lru_lock);
-                if (list_empty(&man->lru)) {
-                        spin_unlock(&glob->lru_lock);
-                        break;
-                }
-                spin_unlock(&glob->lru_lock);
                ret = ttm_mem_evict_first(bdev, mem_type, interruptible,
                                                no_wait_reserve, no_wait_gpu);
                if (unlikely(ret != 0))
@@ -1125,35 +1119,9 @@ EXPORT_SYMBOL(ttm_bo_validate);
 int ttm_bo_check_placement(struct ttm_buffer_object *bo,
                                struct ttm_placement *placement)
 {
-        int i;
+        BUG_ON((placement->fpfn || placement->lpfn) &&
+               (bo->mem.num_pages > (placement->lpfn - placement->fpfn)));
-        if (placement->fpfn || placement->lpfn) {
-                if (bo->mem.num_pages > (placement->lpfn - placement->fpfn)) {
-                        printk(KERN_ERR TTM_PFX "Page number range to small "
-                                "Need %lu pages, range is [%u, %u]\n",
-                                bo->mem.num_pages, placement->fpfn,
-                                placement->lpfn);
-                        return -EINVAL;
-                }
-        }
-        for (i = 0; i < placement->num_placement; i++) {
-                if (!capable(CAP_SYS_ADMIN)) {
-                        if (placement->placement[i] & TTM_PL_FLAG_NO_EVICT) {
-                                printk(KERN_ERR TTM_PFX "Need to be root to "
-                                        "modify NO_EVICT status.\n");
-                                return -EINVAL;
-                        }
-                }
-        }
-        for (i = 0; i < placement->num_busy_placement; i++) {
-                if (!capable(CAP_SYS_ADMIN)) {
-                        if (placement->busy_placement[i] & TTM_PL_FLAG_NO_EVICT) {
-                                printk(KERN_ERR TTM_PFX "Need to be root to "
-                                        "modify NO_EVICT status.\n");
-                                return -EINVAL;
-                        }
-                }
-        }
        return 0;
 }
@@ -1176,6 +1144,10 @@ int ttm_bo_init(struct ttm_bo_device *bdev,
        num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
        if (num_pages == 0) {
                printk(KERN_ERR TTM_PFX "Illegal buffer object size.\n");
+                if (destroy)
+                        (*destroy)(bo);
+                else
+                        kfree(bo);
                return -EINVAL;
        }
        bo->destroy = destroy;
@@ -1369,18 +1341,9 @@ int ttm_bo_init_mm(struct ttm_bo_device *bdev, unsigned type,
        int ret = -EINVAL;
        struct ttm_mem_type_manager *man;
-        if (type >= TTM_NUM_MEM_TYPES) {
+        BUG_ON(type >= TTM_NUM_MEM_TYPES);
-                printk(KERN_ERR TTM_PFX "Illegal memory type %d\n", type);
-                return ret;
-        }
        man = &bdev->man[type];
-        if (man->has_type) {
+        BUG_ON(man->has_type);
-                printk(KERN_ERR TTM_PFX
-                       "Memory manager already initialized for type %d\n",
-                       type);
-                return ret;
-        }
        ret = bdev->driver->init_mem_type(bdev, type, man);
        if (ret)
@@ -1389,13 +1352,6 @@ int ttm_bo_init_mm(struct ttm_bo_device *bdev, unsigned type,
        ret = 0;
        if (type != TTM_PL_SYSTEM) {
-                if (!p_size) {
-                        printk(KERN_ERR TTM_PFX
-                               "Zero size memory manager type %d\n",
-                               type);
-                        return ret;
-                }
                ret = (*man->func->init)(man, p_size);
                if (ret)
                        return ret;
diff --git a/drivers/gpu/drm/ttm/ttm_bo_manager.c b/drivers/gpu/drm/ttm/ttm_bo_manager.c
index 7410c190c891..038e947d00f9 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_manager.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_manager.c
@@ -1,6 +1,6 @@
 /**************************************************************************
 *
- * Copyright (c) 2007-2009 VMware, Inc., Palo Alto, CA., USA
+ * Copyright (c) 2007-2010 VMware, Inc., Palo Alto, CA., USA
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
@@ -31,20 +31,29 @@
 #include "ttm/ttm_module.h"
 #include "ttm/ttm_bo_driver.h"
 #include "ttm/ttm_placement.h"
-#include <linux/jiffies.h>
+#include "drm_mm.h"
 #include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/spinlock.h>
-#include <linux/mm.h>
-#include <linux/file.h>
 #include <linux/module.h>
+/**
+ * Currently we use a spinlock for the lock, but a mutex *may* be
+ * more appropriate to reduce scheduling latency if the range manager
+ * ends up with very fragmented allocation patterns.
+ */
+struct ttm_range_manager {
+        struct drm_mm mm;
+        spinlock_t lock;
+};
 static int ttm_bo_man_get_node(struct ttm_mem_type_manager *man,
                               struct ttm_buffer_object *bo,
                               struct ttm_placement *placement,
                               struct ttm_mem_reg *mem)
 {
-        struct ttm_bo_global *glob = man->bdev->glob;
+        struct ttm_range_manager *rman = (struct ttm_range_manager *) man->priv;
-        struct drm_mm *mm = man->priv;
+        struct drm_mm *mm = &rman->mm;
        struct drm_mm_node *node = NULL;
        unsigned long lpfn;
        int ret;
@@ -57,19 +66,19 @@ static int ttm_bo_man_get_node(struct ttm_mem_type_manager *man,
                if (unlikely(ret))
                        return ret;
-                spin_lock(&glob->lru_lock);
+                spin_lock(&rman->lock);
                node = drm_mm_search_free_in_range(mm,
                                        mem->num_pages, mem->page_alignment,
                                        placement->fpfn, lpfn, 1);
                if (unlikely(node == NULL)) {
-                        spin_unlock(&glob->lru_lock);
+                        spin_unlock(&rman->lock);
                        return 0;
                }
                node = drm_mm_get_block_atomic_range(node, mem->num_pages,
-                                                        mem->page_alignment,
+                                                     mem->page_alignment,
-                                                        placement->fpfn,
+                                                     placement->fpfn,
-                                                        lpfn);
+                                                     lpfn);
-                spin_unlock(&glob->lru_lock);
+                spin_unlock(&rman->lock);
        } while (node == NULL);
        mem->mm_node = node;
@@ -80,12 +89,12 @@ static int ttm_bo_man_get_node(struct ttm_mem_type_manager *man,
 static void ttm_bo_man_put_node(struct ttm_mem_type_manager *man,
                                struct ttm_mem_reg *mem)
 {
-        struct ttm_bo_global *glob = man->bdev->glob;
+        struct ttm_range_manager *rman = (struct ttm_range_manager *) man->priv;
        if (mem->mm_node) {
-                spin_lock(&glob->lru_lock);
+                spin_lock(&rman->lock);
                drm_mm_put_block(mem->mm_node);
-                spin_unlock(&glob->lru_lock);
+                spin_unlock(&rman->lock);
                mem->mm_node = NULL;
        }
 }
@@ -93,49 +102,49 @@ static void ttm_bo_man_put_node(struct ttm_mem_type_manager *man,
 static int ttm_bo_man_init(struct ttm_mem_type_manager *man,
                           unsigned long p_size)
 {
-        struct drm_mm *mm;
+        struct ttm_range_manager *rman;
        int ret;
-        mm = kzalloc(sizeof(*mm), GFP_KERNEL);
+        rman = kzalloc(sizeof(*rman), GFP_KERNEL);
-        if (!mm)
+        if (!rman)
                return -ENOMEM;
-        ret = drm_mm_init(mm, 0, p_size);
+        ret = drm_mm_init(&rman->mm, 0, p_size);
        if (ret) {
-                kfree(mm);
+                kfree(rman);
                return ret;
        }
-        man->priv = mm;
+        spin_lock_init(&rman->lock);
+        man->priv = rman;
        return 0;
 }
 static int ttm_bo_man_takedown(struct ttm_mem_type_manager *man)
 {
-        struct ttm_bo_global *glob = man->bdev->glob;
+        struct ttm_range_manager *rman = (struct ttm_range_manager *) man->priv;
-        struct drm_mm *mm = man->priv;
+        struct drm_mm *mm = &rman->mm;
-        int ret = 0;
-        spin_lock(&glob->lru_lock);
+        spin_lock(&rman->lock);
        if (drm_mm_clean(mm)) {
                drm_mm_takedown(mm);
-                kfree(mm);
+                spin_unlock(&rman->lock);
+                kfree(rman);
                man->priv = NULL;
-        } else
+                return 0;
-                ret = -EBUSY;
+        }
-        spin_unlock(&glob->lru_lock);
+        spin_unlock(&rman->lock);
-        return ret;
+        return -EBUSY;
 }
 static void ttm_bo_man_debug(struct ttm_mem_type_manager *man,
                             const char *prefix)
 {
-        struct ttm_bo_global *glob = man->bdev->glob;
+        struct ttm_range_manager *rman = (struct ttm_range_manager *) man->priv;
-        struct drm_mm *mm = man->priv;
-        spin_lock(&glob->lru_lock);
+        spin_lock(&rman->lock);
-        drm_mm_debug_table(mm, prefix);
+        drm_mm_debug_table(&rman->mm, prefix);
-        spin_unlock(&glob->lru_lock);
+        spin_unlock(&rman->lock);
 }
 const struct ttm_mem_type_manager_func ttm_bo_manager_func = {
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index a7bab87a548b..af789dc869b9 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -440,10 +440,8 @@ int ttm_tt_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
                return ret;
        ret = be->func->bind(be, bo_mem);
-        if (ret) {
+        if (unlikely(ret != 0))
-                printk(KERN_ERR TTM_PFX "Couldn't bind backend.\n");
                return ret;
-        }
        ttm->state = tt_bound;
diff --git a/drivers/gpu/drm/via/via_dmablit.c b/drivers/gpu/drm/via/via_dmablit.c
index 9b5b4d9dd62c..3e038a394c51 100644
--- a/drivers/gpu/drm/via/via_dmablit.c
+++ b/drivers/gpu/drm/via/via_dmablit.c
@@ -235,9 +235,9 @@ via_lock_all_dma_pages(drm_via_sg_info_t *vsg,  drm_via_dmablit_t *xfer)
        vsg->num_pages = VIA_PFN(xfer->mem_addr + (xfer->num_lines * xfer->mem_stride - 1)) -
                first_pfn + 1;
-        if (NULL == (vsg->pages = vmalloc(sizeof(struct page *) * vsg->num_pages)))
+        vsg->pages = vzalloc(sizeof(struct page *) * vsg->num_pages);
+        if (NULL == vsg->pages)
                return -ENOMEM;
-        memset(vsg->pages, 0, sizeof(struct page *) * vsg->num_pages);
        down_read(&current->mm->mmap_sem);
        ret = get_user_pages(current, current->mm,
                             (unsigned long)xfer->mem_addr,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index 51d9f9f1d7f2..76954e3528c1 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -691,6 +691,7 @@ int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
        fence_rep.error = ret;
        fence_rep.fence_seq = (uint64_t) sequence;
+        fence_rep.pad64 = 0;
        user_fence_rep = (struct drm_vmw_fence_rep __user *)
            (unsigned long)arg->fence_rep;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 87c6e6156d7d..cceeb42789b6 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -720,6 +720,8 @@ static int vmw_surface_dmabuf_pin(struct vmw_framebuffer *vfb)
                               &vmw_vram_ne_placement,
                               false, &vmw_dmabuf_bo_free);
        vmw_overlay_resume_all(dev_priv);
+        if (unlikely(ret != 0))
+                vfbs->buffer = NULL;
        return ret;
 }
@@ -730,6 +732,9 @@ static int vmw_surface_dmabuf_unpin(struct vmw_framebuffer *vfb)
        struct vmw_framebuffer_surface *vfbs =
                vmw_framebuffer_to_vfbs(&vfb->base);
+        if (unlikely(vfbs->buffer == NULL))
+                return 0;
        bo = &vfbs->buffer->base;
        ttm_bo_unref(&bo);
        vfbs->buffer = NULL;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
index a01c47ddb5bc..29113c9b26a8 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
@@ -557,7 +557,7 @@ int vmw_kms_init_legacy_display_system(struct vmw_private *dev_priv)
                return -EINVAL;
        }
-        dev_priv->ldu_priv = kmalloc(GFP_KERNEL, sizeof(*dev_priv->ldu_priv));
+        dev_priv->ldu_priv = kmalloc(sizeof(*dev_priv->ldu_priv), GFP_KERNEL);
        if (!dev_priv->ldu_priv)
                return -ENOMEM;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_overlay.c b/drivers/gpu/drm/vmwgfx/vmwgfx_overlay.c
index df2036ed18d5..f1a52f9e7298 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_overlay.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_overlay.c
@@ -585,7 +585,7 @@ int vmw_overlay_init(struct vmw_private *dev_priv)
                return -ENOSYS;
        }
-        overlay = kmalloc(GFP_KERNEL, sizeof(*overlay));
+        overlay = kmalloc(sizeof(*overlay), GFP_KERNEL);
        if (!overlay)
                return -ENOMEM;
diff --git a/drivers/gpu/stub/Kconfig b/drivers/gpu/stub/Kconfig
index 742c423567cf..0e1edd7311ff 100644
--- a/drivers/gpu/stub/Kconfig
+++ b/drivers/gpu/stub/Kconfig
@@ -3,6 +3,9 @@ config STUB_POULSBO
        depends on PCI
        # Poulsbo stub depends on ACPI_VIDEO when ACPI is enabled
        # but for select to work, need to select ACPI_VIDEO's dependencies, ick
+        select VIDEO_OUTPUT_CONTROL if ACPI
+        select BACKLIGHT_CLASS_DEVICE if ACPI
+        select INPUT if ACPI
        select ACPI_VIDEO if ACPI
        help
          Choose this option if you have a system that has Intel GMA500
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index cc2a88d5192f..77b8fd20cd90 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -10,7 +10,7 @@ menuconfig NEW_LEDS
 if NEW_LEDS
 config LEDS_CLASS
-        tristate "LED Class Support"
+        bool "LED Class Support"
        help
          This option enables the led sysfs class in /sys/class/leds.  You'll
          need this to do anything useful with LEDs.  If unsure, say N.
@@ -176,6 +176,24 @@ config LEDS_LP3944
          To compile this driver as a module, choose M here: the
          module will be called leds-lp3944.
+config LEDS_LP5521
+        tristate "LED Support for N.S. LP5521 LED driver chip"
+        depends on LEDS_CLASS && I2C
+        help
+          If you say yes here you get support for the National Semiconductor
+          LP5521 LED driver. It is 3 channel chip with programmable engines.
+          Driver provides direct control via LED class and interface for
+          programming the engines.
+config LEDS_LP5523
+        tristate "LED Support for N.S. LP5523 LED driver chip"
+        depends on LEDS_CLASS && I2C
+        help
+          If you say yes here you get support for the National Semiconductor
+          LP5523 LED driver. It is 9 channel chip with programmable engines.
+          Driver provides direct control via LED class and interface for
+          programming the engines.
 config LEDS_CLEVO_MAIL
        tristate "Mail LED on Clevo notebook"
        depends on X86 && SERIO_I8042 && DMI
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 9c96db40ef6d..aae6989ff6b6 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -23,6 +23,8 @@ obj-$(CONFIG_LEDS_SUNFIRE)		+= leds-sunfire.o
 obj-$(CONFIG_LEDS_PCA9532)              += leds-pca9532.o
 obj-$(CONFIG_LEDS_GPIO)                 += leds-gpio.o
 obj-$(CONFIG_LEDS_LP3944)               += leds-lp3944.o
+obj-$(CONFIG_LEDS_LP5521)               += leds-lp5521.o
+obj-$(CONFIG_LEDS_LP5523)               += leds-lp5523.o
 obj-$(CONFIG_LEDS_CLEVO_MAIL)           += leds-clevo-mail.o
 obj-$(CONFIG_LEDS_HP6XX)                += leds-hp6xx.o
 obj-$(CONFIG_LEDS_FSG)                  += leds-fsg.o
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 260660076507..211e21f34bd5 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -81,6 +81,79 @@ static struct device_attribute led_class_attrs[] = {
        __ATTR_NULL,
 };
+static void led_timer_function(unsigned long data)
+{
+        struct led_classdev *led_cdev = (void *)data;
+        unsigned long brightness;
+        unsigned long delay;
+        if (!led_cdev->blink_delay_on || !led_cdev->blink_delay_off) {
+                led_set_brightness(led_cdev, LED_OFF);
+                return;
+        }
+        brightness = led_get_brightness(led_cdev);
+        if (!brightness) {
+                /* Time to switch the LED on. */
+                brightness = led_cdev->blink_brightness;
+                delay = led_cdev->blink_delay_on;
+        } else {
+                /* Store the current brightness value to be able
+                 * to restore it when the delay_off period is over.
+                 */
+                led_cdev->blink_brightness = brightness;
+                brightness = LED_OFF;
+                delay = led_cdev->blink_delay_off;
+        }
+        led_set_brightness(led_cdev, brightness);
+        mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay));
+}
+static void led_stop_software_blink(struct led_classdev *led_cdev)
+{
+        /* deactivate previous settings */
+        del_timer_sync(&led_cdev->blink_timer);
+        led_cdev->blink_delay_on = 0;
+        led_cdev->blink_delay_off = 0;
+}
+static void led_set_software_blink(struct led_classdev *led_cdev,
+                                   unsigned long delay_on,
+                                   unsigned long delay_off)
+{
+        int current_brightness;
+        current_brightness = led_get_brightness(led_cdev);
+        if (current_brightness)
+                led_cdev->blink_brightness = current_brightness;
+        if (!led_cdev->blink_brightness)
+                led_cdev->blink_brightness = led_cdev->max_brightness;
+        if (delay_on == led_cdev->blink_delay_on &&
+            delay_off == led_cdev->blink_delay_off)
+                return;
+        led_stop_software_blink(led_cdev);
+        led_cdev->blink_delay_on = delay_on;
+        led_cdev->blink_delay_off = delay_off;
+        /* never on - don't blink */
+        if (!delay_on)
+                return;
+        /* never off - just set to brightness */
+        if (!delay_off) {
+                led_set_brightness(led_cdev, led_cdev->blink_brightness);
+                return;
+        }
+        mod_timer(&led_cdev->blink_timer, jiffies + 1);
+}
 /**
 * led_classdev_suspend - suspend an led_classdev.
 * @led_cdev: the led_classdev to suspend.
@@ -148,6 +221,10 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
        led_update_brightness(led_cdev);
+        init_timer(&led_cdev->blink_timer);
+        led_cdev->blink_timer.function = led_timer_function;
+        led_cdev->blink_timer.data = (unsigned long)led_cdev;
 #ifdef CONFIG_LEDS_TRIGGERS
        led_trigger_set_default(led_cdev);
 #endif
@@ -157,7 +234,6 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
        return 0;
 }
 EXPORT_SYMBOL_GPL(led_classdev_register);
 /**
@@ -175,6 +251,9 @@ void led_classdev_unregister(struct led_classdev *led_cdev)
        up_write(&led_cdev->trigger_lock);
 #endif
+        /* Stop blinking */
+        led_brightness_set(led_cdev, LED_OFF);
        device_unregister(led_cdev->dev);
        down_write(&leds_list_lock);
@@ -183,6 +262,30 @@ void led_classdev_unregister(struct led_classdev *led_cdev)
 }
 EXPORT_SYMBOL_GPL(led_classdev_unregister);
+void led_blink_set(struct led_classdev *led_cdev,
+                   unsigned long *delay_on,
+                   unsigned long *delay_off)
+{
+        if (led_cdev->blink_set &&
+            led_cdev->blink_set(led_cdev, delay_on, delay_off))
+                return;
+        /* blink with 1 Hz as default if nothing specified */
+        if (!*delay_on && !*delay_off)
+                *delay_on = *delay_off = 500;
+        led_set_software_blink(led_cdev, *delay_on, *delay_off);
+}
+EXPORT_SYMBOL(led_blink_set);
+void led_brightness_set(struct led_classdev *led_cdev,
+                        enum led_brightness brightness)
+{
+        led_stop_software_blink(led_cdev);
+        led_cdev->brightness_set(led_cdev, brightness);
+}
+EXPORT_SYMBOL(led_brightness_set);
 static int __init leds_init(void)
 {
        leds_class = class_create(THIS_MODULE, "leds");
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index f1c00db88b5e..c41eb6180c9c 100644
--- a/drivers/leds/led-triggers.c
+++ b/drivers/leds/led-triggers.c
@@ -113,7 +113,7 @@ void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger)
                if (led_cdev->trigger->deactivate)
                        led_cdev->trigger->deactivate(led_cdev);
                led_cdev->trigger = NULL;
-                led_set_brightness(led_cdev, LED_OFF);
+                led_brightness_set(led_cdev, LED_OFF);
        }
        if (trigger) {
                write_lock_irqsave(&trigger->leddev_list_lock, flags);
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index ea57e05d08f3..4d9fa38d9ff6 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -316,7 +316,7 @@ static struct of_platform_driver of_gpio_leds_driver = {
 static int __init gpio_led_init(void)
 {
-        int ret;
+        int ret = 0;
 #ifdef CONFIG_LEDS_GPIO_PLATFORM        
        ret = platform_driver_register(&gpio_led_driver);
diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c
new file mode 100644
index 000000000000..3782f31f06d2
--- /dev/null
+++ b/drivers/leds/leds-lp5521.c
@@ -0,0 +1,821 @@
+/*
+ * LP5521 LED chip driver.
+ *
+ * Copyright (C) 2010 Nokia Corporation
+ *
+ * Contact: Samu Onkalo <samu.p.onkalo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/ctype.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/leds.h>
+#include <linux/leds-lp5521.h>
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+#define LP5521_PROGRAM_LENGTH           32      /* in bytes */
+#define LP5521_MAX_LEDS                 3       /* Maximum number of LEDs */
+#define LP5521_MAX_ENGINES              3       /* Maximum number of engines */
+#define LP5521_ENG_MASK_BASE            0x30    /* 00110000 */
+#define LP5521_ENG_STATUS_MASK          0x07    /* 00000111 */
+#define LP5521_CMD_LOAD                 0x15    /* 00010101 */
+#define LP5521_CMD_RUN                  0x2a    /* 00101010 */
+#define LP5521_CMD_DIRECT               0x3f    /* 00111111 */
+#define LP5521_CMD_DISABLED             0x00    /* 00000000 */
+/* Registers */
+#define LP5521_REG_ENABLE               0x00
+#define LP5521_REG_OP_MODE              0x01
+#define LP5521_REG_R_PWM                0x02
+#define LP5521_REG_G_PWM                0x03
+#define LP5521_REG_B_PWM                0x04
+#define LP5521_REG_R_CURRENT            0x05
+#define LP5521_REG_G_CURRENT            0x06
+#define LP5521_REG_B_CURRENT            0x07
+#define LP5521_REG_CONFIG               0x08
+#define LP5521_REG_R_CHANNEL_PC         0x09
+#define LP5521_REG_G_CHANNEL_PC         0x0A
+#define LP5521_REG_B_CHANNEL_PC         0x0B
+#define LP5521_REG_STATUS               0x0C
+#define LP5521_REG_RESET                0x0D
+#define LP5521_REG_GPO                  0x0E
+#define LP5521_REG_R_PROG_MEM           0x10
+#define LP5521_REG_G_PROG_MEM           0x30
+#define LP5521_REG_B_PROG_MEM           0x50
+#define LP5521_PROG_MEM_BASE            LP5521_REG_R_PROG_MEM
+#define LP5521_PROG_MEM_SIZE            0x20
+/* Base register to set LED current */
+#define LP5521_REG_LED_CURRENT_BASE     LP5521_REG_R_CURRENT
+/* Base register to set the brightness */
+#define LP5521_REG_LED_PWM_BASE         LP5521_REG_R_PWM
+/* Bits in ENABLE register */
+#define LP5521_MASTER_ENABLE            0x40    /* Chip master enable */
+#define LP5521_LOGARITHMIC_PWM          0x80    /* Logarithmic PWM adjustment */
+#define LP5521_EXEC_RUN                 0x2A
+/* Bits in CONFIG register */
+#define LP5521_PWM_HF                   0x40    /* PWM: 0 = 256Hz, 1 = 558Hz */
+#define LP5521_PWRSAVE_EN               0x20    /* 1 = Power save mode */
+#define LP5521_CP_MODE_OFF              0       /* Charge pump (CP) off */
+#define LP5521_CP_MODE_BYPASS           8       /* CP forced to bypass mode */
+#define LP5521_CP_MODE_1X5              0x10    /* CP forced to 1.5x mode */
+#define LP5521_CP_MODE_AUTO             0x18    /* Automatic mode selection */
+#define LP5521_R_TO_BATT                4       /* R out: 0 = CP, 1 = Vbat */
+#define LP5521_CLK_SRC_EXT              0       /* Ext-clk source (CLK_32K) */
+#define LP5521_CLK_INT                  1       /* Internal clock */
+#define LP5521_CLK_AUTO                 2       /* Automatic clock selection */
+/* Status */
+#define LP5521_EXT_CLK_USED             0x08
+struct lp5521_engine {
+        const struct attribute_group *attributes;
+        int             id;
+        u8              mode;
+        u8              prog_page;
+        u8              engine_mask;
+};
+struct lp5521_led {
+        int                     id;
+        u8                      chan_nr;
+        u8                      led_current;
+        u8                      max_current;
+        struct led_classdev     cdev;
+        struct work_struct      brightness_work;
+        u8                      brightness;
+};
+struct lp5521_chip {
+        struct lp5521_platform_data *pdata;
+        struct mutex            lock; /* Serialize control */
+        struct i2c_client       *client;
+        struct lp5521_engine    engines[LP5521_MAX_ENGINES];
+        struct lp5521_led       leds[LP5521_MAX_LEDS];
+        u8                      num_channels;
+        u8                      num_leds;
+};
+#define cdev_to_led(c)          container_of(c, struct lp5521_led, cdev)
+#define engine_to_lp5521(eng)   container_of((eng), struct lp5521_chip, \
+                                                engines[(eng)->id - 1])
+#define led_to_lp5521(led)      container_of((led), struct lp5521_chip, \
+                                                leds[(led)->id])
+static void lp5521_led_brightness_work(struct work_struct *work);
+static inline int lp5521_write(struct i2c_client *client, u8 reg, u8 value)
+{
+        return i2c_smbus_write_byte_data(client, reg, value);
+}
+static int lp5521_read(struct i2c_client *client, u8 reg, u8 *buf)
+{
+        s32 ret;
+        ret = i2c_smbus_read_byte_data(client, reg);
+        if (ret < 0)
+                return -EIO;
+        *buf = ret;
+        return 0;
+}
+static int lp5521_set_engine_mode(struct lp5521_engine *engine, u8 mode)
+{
+        struct lp5521_chip *chip = engine_to_lp5521(engine);
+        struct i2c_client *client = chip->client;
+        int ret;
+        u8 engine_state;
+        /* Only transition between RUN and DIRECT mode are handled here */
+        if (mode == LP5521_CMD_LOAD)
+                return 0;
+        if (mode == LP5521_CMD_DISABLED)
+                mode = LP5521_CMD_DIRECT;
+        ret = lp5521_read(client, LP5521_REG_OP_MODE, &engine_state);
+        /* set mode only for this engine */
+        engine_state &= ~(engine->engine_mask);
+        mode &= engine->engine_mask;
+        engine_state |= mode;
+        ret |= lp5521_write(client, LP5521_REG_OP_MODE, engine_state);
+        return ret;
+}
+static int lp5521_load_program(struct lp5521_engine *eng, const u8 *pattern)
+{
+        struct lp5521_chip *chip = engine_to_lp5521(eng);
+        struct i2c_client *client = chip->client;
+        int ret;
+        int addr;
+        u8 mode;
+        /* move current engine to direct mode and remember the state */
+        ret = lp5521_set_engine_mode(eng, LP5521_CMD_DIRECT);
+        usleep_range(1000, 10000);
+        ret |= lp5521_read(client, LP5521_REG_OP_MODE, &mode);
+        /* For loading, all the engines to load mode */
+        lp5521_write(client, LP5521_REG_OP_MODE, LP5521_CMD_DIRECT);
+        usleep_range(1000, 10000);
+        lp5521_write(client, LP5521_REG_OP_MODE, LP5521_CMD_LOAD);
+        usleep_range(1000, 10000);
+        addr = LP5521_PROG_MEM_BASE + eng->prog_page * LP5521_PROG_MEM_SIZE;
+        i2c_smbus_write_i2c_block_data(client,
+                                addr,
+                                LP5521_PROG_MEM_SIZE,
+                                pattern);
+        ret |= lp5521_write(client, LP5521_REG_OP_MODE, mode);
+        return ret;
+}
+static int lp5521_set_led_current(struct lp5521_chip *chip, int led, u8 curr)
+{
+        return lp5521_write(chip->client,
+                    LP5521_REG_LED_CURRENT_BASE + chip->leds[led].chan_nr,
+                    curr);
+}
+static void lp5521_init_engine(struct lp5521_chip *chip,
+                        const struct attribute_group *attr_group)
+{
+        int i;
+        for (i = 0; i < ARRAY_SIZE(chip->engines); i++) {
+                chip->engines[i].id = i + 1;
+                chip->engines[i].engine_mask = LP5521_ENG_MASK_BASE >> (i * 2);
+                chip->engines[i].prog_page = i;
+                chip->engines[i].attributes = &attr_group[i];
+        }
+}
+static int lp5521_configure(struct i2c_client *client,
+                        const struct attribute_group *attr_group)
+{
+        struct lp5521_chip *chip = i2c_get_clientdata(client);
+        int ret;
+        lp5521_init_engine(chip, attr_group);
+        lp5521_write(client, LP5521_REG_RESET, 0xff);
+        usleep_range(10000, 20000);
+        /* Set all PWMs to direct control mode */
+        ret = lp5521_write(client, LP5521_REG_OP_MODE, 0x3F);
+        /* Enable auto-powersave, set charge pump to auto, red to battery */
+        ret |= lp5521_write(client, LP5521_REG_CONFIG,
+                LP5521_PWRSAVE_EN | LP5521_CP_MODE_AUTO | LP5521_R_TO_BATT);
+        /* Initialize all channels PWM to zero -> leds off */
+        ret |= lp5521_write(client, LP5521_REG_R_PWM, 0);
+        ret |= lp5521_write(client, LP5521_REG_G_PWM, 0);
+        ret |= lp5521_write(client, LP5521_REG_B_PWM, 0);
+        /* Set engines are set to run state when OP_MODE enables engines */
+        ret |= lp5521_write(client, LP5521_REG_ENABLE,
+                        LP5521_MASTER_ENABLE | LP5521_LOGARITHMIC_PWM |
+                        LP5521_EXEC_RUN);
+        /* enable takes 500us */
+        usleep_range(500, 20000);
+        return ret;
+}
+static int lp5521_run_selftest(struct lp5521_chip *chip, char *buf)
+{
+        int ret;
+        u8 status;
+        ret = lp5521_read(chip->client, LP5521_REG_STATUS, &status);
+        if (ret < 0)
+                return ret;
+        /* Check that ext clock is really in use if requested */
+        if (chip->pdata && chip->pdata->clock_mode == LP5521_CLOCK_EXT)
+                if  ((status & LP5521_EXT_CLK_USED) == 0)
+                        return -EIO;
+        return 0;
+}
+static void lp5521_set_brightness(struct led_classdev *cdev,
+                             enum led_brightness brightness)
+{
+        struct lp5521_led *led = cdev_to_led(cdev);
+        led->brightness = (u8)brightness;
+        schedule_work(&led->brightness_work);
+}
+static void lp5521_led_brightness_work(struct work_struct *work)
+{
+        struct lp5521_led *led = container_of(work,
+                                              struct lp5521_led,
+                                              brightness_work);
+        struct lp5521_chip *chip = led_to_lp5521(led);
+        struct i2c_client *client = chip->client;
+        mutex_lock(&chip->lock);
+        lp5521_write(client, LP5521_REG_LED_PWM_BASE + led->chan_nr,
+                led->brightness);
+        mutex_unlock(&chip->lock);
+}
+/* Detect the chip by setting its ENABLE register and reading it back. */
+static int lp5521_detect(struct i2c_client *client)
+{
+        int ret;
+        u8 buf;
+        ret = lp5521_write(client, LP5521_REG_ENABLE,
+                        LP5521_MASTER_ENABLE | LP5521_LOGARITHMIC_PWM);
+        if (ret)
+                return ret;
+        usleep_range(1000, 10000);
+        ret = lp5521_read(client, LP5521_REG_ENABLE, &buf);
+        if (ret)
+                return ret;
+        if (buf != (LP5521_MASTER_ENABLE | LP5521_LOGARITHMIC_PWM))
+                return -ENODEV;
+        return 0;
+}
+/* Set engine mode and create appropriate sysfs attributes, if required. */
+static int lp5521_set_mode(struct lp5521_engine *engine, u8 mode)
+{
+        struct lp5521_chip *chip = engine_to_lp5521(engine);
+        struct i2c_client *client = chip->client;
+        struct device *dev = &client->dev;
+        int ret = 0;
+        /* if in that mode already do nothing, except for run */
+        if (mode == engine->mode && mode != LP5521_CMD_RUN)
+                return 0;
+        if (mode == LP5521_CMD_RUN) {
+                ret = lp5521_set_engine_mode(engine, LP5521_CMD_RUN);
+        } else if (mode == LP5521_CMD_LOAD) {
+                lp5521_set_engine_mode(engine, LP5521_CMD_DISABLED);
+                lp5521_set_engine_mode(engine, LP5521_CMD_LOAD);
+                ret = sysfs_create_group(&dev->kobj, engine->attributes);
+                if (ret)
+                        return ret;
+        } else if (mode == LP5521_CMD_DISABLED) {
+                lp5521_set_engine_mode(engine, LP5521_CMD_DISABLED);
+        }
+        /* remove load attribute from sysfs if not in load mode */
+        if (engine->mode == LP5521_CMD_LOAD && mode != LP5521_CMD_LOAD)
+                sysfs_remove_group(&dev->kobj, engine->attributes);
+        engine->mode = mode;
+        return ret;
+}
+static int lp5521_do_store_load(struct lp5521_engine *engine,
+                                const char *buf, size_t len)
+{
+        struct lp5521_chip *chip = engine_to_lp5521(engine);
+        struct i2c_client *client = chip->client;
+        int  ret, nrchars, offset = 0, i = 0;
+        char c[3];
+        unsigned cmd;
+        u8 pattern[LP5521_PROGRAM_LENGTH] = {0};
+        while ((offset < len - 1) && (i < LP5521_PROGRAM_LENGTH)) {
+                /* separate sscanfs because length is working only for %s */
+                ret = sscanf(buf + offset, "%2s%n ", c, &nrchars);
+                ret = sscanf(c, "%2x", &cmd);
+                if (ret != 1)
+                        goto fail;
+                pattern[i] = (u8)cmd;
+                offset += nrchars;
+                i++;
+        }
+        /* Each instruction is 16bit long. Check that length is even */
+        if (i % 2)
+                goto fail;
+        mutex_lock(&chip->lock);
+        ret = lp5521_load_program(engine, pattern);
+        mutex_unlock(&chip->lock);
+        if (ret) {
+                dev_err(&client->dev, "failed loading pattern\n");
+                return ret;
+        }
+        return len;
+fail:
+        dev_err(&client->dev, "wrong pattern format\n");
+        return -EINVAL;
+}
+static ssize_t store_engine_load(struct device *dev,
+                                     struct device_attribute *attr,
+                                     const char *buf, size_t len, int nr)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct lp5521_chip *chip = i2c_get_clientdata(client);
+        return lp5521_do_store_load(&chip->engines[nr - 1], buf, len);
+}
+#define store_load(nr)                                                  \
+static ssize_t store_engine##nr##_load(struct device *dev,              \
+                                     struct device_attribute *attr,     \
+                                     const char *buf, size_t len)       \
+{                                                                       \
+        return store_engine_load(dev, attr, buf, len, nr);              \
+}
+store_load(1)
+store_load(2)
+store_load(3)
+static ssize_t show_engine_mode(struct device *dev,
+                                struct device_attribute *attr,
+                                char *buf, int nr)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct lp5521_chip *chip = i2c_get_clientdata(client);
+        switch (chip->engines[nr - 1].mode) {
+        case LP5521_CMD_RUN:
+                return sprintf(buf, "run\n");
+        case LP5521_CMD_LOAD:
+                return sprintf(buf, "load\n");
+        case LP5521_CMD_DISABLED:
+                return sprintf(buf, "disabled\n");
+        default:
+                return sprintf(buf, "disabled\n");
+        }
+}
+#define show_mode(nr)                                                   \
+static ssize_t show_engine##nr##_mode(struct device *dev,               \
+                                    struct device_attribute *attr,      \
+                                    char *buf)                          \
+{                                                                       \
+        return show_engine_mode(dev, attr, buf, nr);                    \
+}
+show_mode(1)
+show_mode(2)
+show_mode(3)
+static ssize_t store_engine_mode(struct device *dev,
+                                 struct device_attribute *attr,
+                                 const char *buf, size_t len, int nr)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct lp5521_chip *chip = i2c_get_clientdata(client);
+        struct lp5521_engine *engine = &chip->engines[nr - 1];
+        mutex_lock(&chip->lock);
+        if (!strncmp(buf, "run", 3))
+                lp5521_set_mode(engine, LP5521_CMD_RUN);
+        else if (!strncmp(buf, "load", 4))
+                lp5521_set_mode(engine, LP5521_CMD_LOAD);
+        else if (!strncmp(buf, "disabled", 8))
+                lp5521_set_mode(engine, LP5521_CMD_DISABLED);
+        mutex_unlock(&chip->lock);
+        return len;
+}
+#define store_mode(nr)                                                  \
+static ssize_t store_engine##nr##_mode(struct device *dev,              \
+                                     struct device_attribute *attr,     \
+                                     const char *buf, size_t len)       \
+{                                                                       \
+        return store_engine_mode(dev, attr, buf, len, nr);              \
+}
+store_mode(1)
+store_mode(2)
+store_mode(3)
+static ssize_t show_max_current(struct device *dev,
+                            struct device_attribute *attr,
+                            char *buf)
+{
+        struct led_classdev *led_cdev = dev_get_drvdata(dev);
+        struct lp5521_led *led = cdev_to_led(led_cdev);
+        return sprintf(buf, "%d\n", led->max_current);
+}
+static ssize_t show_current(struct device *dev,
+                            struct device_attribute *attr,
+                            char *buf)
+{
+        struct led_classdev *led_cdev = dev_get_drvdata(dev);
+        struct lp5521_led *led = cdev_to_led(led_cdev);
+        return sprintf(buf, "%d\n", led->led_current);
+}
+static ssize_t store_current(struct device *dev,
+                             struct device_attribute *attr,
+                             const char *buf, size_t len)
+{
+        struct led_classdev *led_cdev = dev_get_drvdata(dev);
+        struct lp5521_led *led = cdev_to_led(led_cdev);
+        struct lp5521_chip *chip = led_to_lp5521(led);
+        ssize_t ret;
+        unsigned long curr;
+        if (strict_strtoul(buf, 0, &curr))
+                return -EINVAL;
+        if (curr > led->max_current)
+                return -EINVAL;
+        mutex_lock(&chip->lock);
+        ret = lp5521_set_led_current(chip, led->id, curr);
+        mutex_unlock(&chip->lock);
+        if (ret < 0)
+                return ret;
+        led->led_current = (u8)curr;
+        return len;
+}
+static ssize_t lp5521_selftest(struct device *dev,
+                               struct device_attribute *attr,
+                               char *buf)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct lp5521_chip *chip = i2c_get_clientdata(client);
+        int ret;
+        mutex_lock(&chip->lock);
+        ret = lp5521_run_selftest(chip, buf);
+        mutex_unlock(&chip->lock);
+        return sprintf(buf, "%s\n", ret ? "FAIL" : "OK");
+}
+/* led class device attributes */
+static DEVICE_ATTR(led_current, S_IRUGO | S_IWUGO, show_current, store_current);
+static DEVICE_ATTR(max_current, S_IRUGO , show_max_current, NULL);
+static struct attribute *lp5521_led_attributes[] = {
+        &dev_attr_led_current.attr,
+        &dev_attr_max_current.attr,
+        NULL,
+};
+static struct attribute_group lp5521_led_attribute_group = {
+        .attrs = lp5521_led_attributes
+};
+/* device attributes */
+static DEVICE_ATTR(engine1_mode, S_IRUGO | S_IWUGO,
+                   show_engine1_mode, store_engine1_mode);
+static DEVICE_ATTR(engine2_mode, S_IRUGO | S_IWUGO,
+                   show_engine2_mode, store_engine2_mode);
+static DEVICE_ATTR(engine3_mode, S_IRUGO | S_IWUGO,
+                   show_engine3_mode, store_engine3_mode);
+static DEVICE_ATTR(engine1_load, S_IWUGO, NULL, store_engine1_load);
+static DEVICE_ATTR(engine2_load, S_IWUGO, NULL, store_engine2_load);
+static DEVICE_ATTR(engine3_load, S_IWUGO, NULL, store_engine3_load);
+static DEVICE_ATTR(selftest, S_IRUGO, lp5521_selftest, NULL);
+static struct attribute *lp5521_attributes[] = {
+        &dev_attr_engine1_mode.attr,
+        &dev_attr_engine2_mode.attr,
+        &dev_attr_engine3_mode.attr,
+        &dev_attr_selftest.attr,
+        NULL
+};
+static struct attribute *lp5521_engine1_attributes[] = {
+        &dev_attr_engine1_load.attr,
+        NULL
+};
+static struct attribute *lp5521_engine2_attributes[] = {
+        &dev_attr_engine2_load.attr,
+        NULL
+};
+static struct attribute *lp5521_engine3_attributes[] = {
+        &dev_attr_engine3_load.attr,
+        NULL
+};
+static const struct attribute_group lp5521_group = {
+        .attrs = lp5521_attributes,
+};
+static const struct attribute_group lp5521_engine_group[] = {
+        {.attrs = lp5521_engine1_attributes },
+        {.attrs = lp5521_engine2_attributes },
+        {.attrs = lp5521_engine3_attributes },
+};
+static int lp5521_register_sysfs(struct i2c_client *client)
+{
+        struct device *dev = &client->dev;
+        return sysfs_create_group(&dev->kobj, &lp5521_group);
+}
+static void lp5521_unregister_sysfs(struct i2c_client *client)
+{
+        struct lp5521_chip *chip = i2c_get_clientdata(client);
+        struct device *dev = &client->dev;
+        int i;
+        sysfs_remove_group(&dev->kobj, &lp5521_group);
+        for (i = 0; i <  ARRAY_SIZE(chip->engines); i++) {
+                if (chip->engines[i].mode == LP5521_CMD_LOAD)
+                        sysfs_remove_group(&dev->kobj,
+                                        chip->engines[i].attributes);
+        }
+        for (i = 0; i < chip->num_leds; i++)
+                sysfs_remove_group(&chip->leds[i].cdev.dev->kobj,
+                                &lp5521_led_attribute_group);
+}
+static int __init lp5521_init_led(struct lp5521_led *led,
+                                struct i2c_client *client,
+                                int chan, struct lp5521_platform_data *pdata)
+{
+        struct device *dev = &client->dev;
+        char name[32];
+        int res;
+        if (chan >= LP5521_MAX_LEDS)
+                return -EINVAL;
+        if (pdata->led_config[chan].led_current == 0)
+                return 0;
+        led->led_current = pdata->led_config[chan].led_current;
+        led->max_current = pdata->led_config[chan].max_current;
+        led->chan_nr = pdata->led_config[chan].chan_nr;
+        if (led->chan_nr >= LP5521_MAX_LEDS) {
+                dev_err(dev, "Use channel numbers between 0 and %d\n",
+                        LP5521_MAX_LEDS - 1);
+                return -EINVAL;
+        }
+        snprintf(name, sizeof(name), "%s:channel%d", client->name, chan);
+        led->cdev.brightness_set = lp5521_set_brightness;
+        led->cdev.name = name;
+        res = led_classdev_register(dev, &led->cdev);
+        if (res < 0) {
+                dev_err(dev, "couldn't register led on channel %d\n", chan);
+                return res;
+        }
+        res = sysfs_create_group(&led->cdev.dev->kobj,
+                        &lp5521_led_attribute_group);
+        if (res < 0) {
+                dev_err(dev, "couldn't register current attribute\n");
+                led_classdev_unregister(&led->cdev);
+                return res;
+        }
+        return 0;
+}
+static int lp5521_probe(struct i2c_client *client,
+                        const struct i2c_device_id *id)
+{
+        struct lp5521_chip              *chip;
+        struct lp5521_platform_data     *pdata;
+        int ret, i, led;
+        chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+        if (!chip)
+                return -ENOMEM;
+        i2c_set_clientdata(client, chip);
+        chip->client = client;
+        pdata = client->dev.platform_data;
+        if (!pdata) {
+                dev_err(&client->dev, "no platform data\n");
+                ret = -EINVAL;
+                goto fail1;
+        }
+        mutex_init(&chip->lock);
+        chip->pdata   = pdata;
+        if (pdata->setup_resources) {
+                ret = pdata->setup_resources();
+                if (ret < 0)
+                        goto fail1;
+        }
+        if (pdata->enable) {
+                pdata->enable(0);
+                usleep_range(1000, 10000);
+                pdata->enable(1);
+                usleep_range(1000, 10000); /* Spec says min 500us */
+        }
+        ret = lp5521_detect(client);
+        if (ret) {
+                dev_err(&client->dev, "Chip not found\n");
+                goto fail2;
+        }
+        dev_info(&client->dev, "%s programmable led chip found\n", id->name);
+        ret = lp5521_configure(client, lp5521_engine_group);
+        if (ret < 0) {
+                dev_err(&client->dev, "error configuring chip\n");
+                goto fail2;
+        }
+        /* Initialize leds */
+        chip->num_channels = pdata->num_channels;
+        chip->num_leds = 0;
+        led = 0;
+        for (i = 0; i < pdata->num_channels; i++) {
+                /* Do not initialize channels that are not connected */
+                if (pdata->led_config[i].led_current == 0)
+                        continue;
+                ret = lp5521_init_led(&chip->leds[led], client, i, pdata);
+                if (ret) {
+                        dev_err(&client->dev, "error initializing leds\n");
+                        goto fail3;
+                }
+                chip->num_leds++;
+                chip->leds[led].id = led;
+                /* Set initial LED current */
+                lp5521_set_led_current(chip, led,
+                                chip->leds[led].led_current);
+                INIT_WORK(&(chip->leds[led].brightness_work),
+                        lp5521_led_brightness_work);
+                led++;
+        }
+        ret = lp5521_register_sysfs(client);
+        if (ret) {
+                dev_err(&client->dev, "registering sysfs failed\n");
+                goto fail3;
+        }
+        return ret;
+fail3:
+        for (i = 0; i < chip->num_leds; i++) {
+                led_classdev_unregister(&chip->leds[i].cdev);
+                cancel_work_sync(&chip->leds[i].brightness_work);
+        }
+fail2:
+        if (pdata->enable)
+                pdata->enable(0);
+        if (pdata->release_resources)
+                pdata->release_resources();
+fail1:
+        kfree(chip);
+        return ret;
+}
+static int lp5521_remove(struct i2c_client *client)
+{
+        struct lp5521_chip *chip = i2c_get_clientdata(client);
+        int i;
+        lp5521_unregister_sysfs(client);
+        for (i = 0; i < chip->num_leds; i++) {
+                led_classdev_unregister(&chip->leds[i].cdev);
+                cancel_work_sync(&chip->leds[i].brightness_work);
+        }
+        if (chip->pdata->enable)
+                chip->pdata->enable(0);
+        if (chip->pdata->release_resources)
+                chip->pdata->release_resources();
+        kfree(chip);
+        return 0;
+}
+static const struct i2c_device_id lp5521_id[] = {
+        { "lp5521", 0 }, /* Three channel chip */
+        { }
+};
+MODULE_DEVICE_TABLE(i2c, lp5521_id);
+static struct i2c_driver lp5521_driver = {
+        .driver = {
+                .name   = "lp5521",
+        },
+        .probe          = lp5521_probe,
+        .remove         = lp5521_remove,
+        .id_table       = lp5521_id,
+};
+static int __init lp5521_init(void)
+{
+        int ret;
+        ret = i2c_add_driver(&lp5521_driver);
+        if (ret < 0)
+                printk(KERN_ALERT "Adding lp5521 driver failed\n");
+        return ret;
+}
+static void __exit lp5521_exit(void)
+{
+        i2c_del_driver(&lp5521_driver);
+}
+module_init(lp5521_init);
+module_exit(lp5521_exit);
+MODULE_AUTHOR("Mathias Nyman, Yuri Zaporozhets, Samu Onkalo");
+MODULE_DESCRIPTION("LP5521 LED engine");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
new file mode 100644
index 000000000000..1e11fcc08b28
--- /dev/null
+++ b/drivers/leds/leds-lp5523.c
@@ -0,0 +1,1065 @@
+/*
+ * lp5523.c - LP5523 LED Driver
+ *
+ * Copyright (C) 2010 Nokia Corporation
+ *
+ * Contact: Samu Onkalo <samu.p.onkalo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/ctype.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/leds.h>
+#include <linux/leds-lp5523.h>
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+#define LP5523_REG_ENABLE               0x00
+#define LP5523_REG_OP_MODE              0x01
+#define LP5523_REG_RATIOMETRIC_MSB      0x02
+#define LP5523_REG_RATIOMETRIC_LSB      0x03
+#define LP5523_REG_ENABLE_LEDS_MSB      0x04
+#define LP5523_REG_ENABLE_LEDS_LSB      0x05
+#define LP5523_REG_LED_CNTRL_BASE       0x06
+#define LP5523_REG_LED_PWM_BASE         0x16
+#define LP5523_REG_LED_CURRENT_BASE     0x26
+#define LP5523_REG_CONFIG               0x36
+#define LP5523_REG_CHANNEL1_PC          0x37
+#define LP5523_REG_CHANNEL2_PC          0x38
+#define LP5523_REG_CHANNEL3_PC          0x39
+#define LP5523_REG_STATUS               0x3a
+#define LP5523_REG_GPO                  0x3b
+#define LP5523_REG_VARIABLE             0x3c
+#define LP5523_REG_RESET                0x3d
+#define LP5523_REG_TEMP_CTRL            0x3e
+#define LP5523_REG_TEMP_READ            0x3f
+#define LP5523_REG_TEMP_WRITE           0x40
+#define LP5523_REG_LED_TEST_CTRL        0x41
+#define LP5523_REG_LED_TEST_ADC         0x42
+#define LP5523_REG_ENG1_VARIABLE        0x45
+#define LP5523_REG_ENG2_VARIABLE        0x46
+#define LP5523_REG_ENG3_VARIABLE        0x47
+#define LP5523_REG_MASTER_FADER1        0x48
+#define LP5523_REG_MASTER_FADER2        0x49
+#define LP5523_REG_MASTER_FADER3        0x4a
+#define LP5523_REG_CH1_PROG_START       0x4c
+#define LP5523_REG_CH2_PROG_START       0x4d
+#define LP5523_REG_CH3_PROG_START       0x4e
+#define LP5523_REG_PROG_PAGE_SEL        0x4f
+#define LP5523_REG_PROG_MEM             0x50
+#define LP5523_CMD_LOAD                 0x15 /* 00010101 */
+#define LP5523_CMD_RUN                  0x2a /* 00101010 */
+#define LP5523_CMD_DISABLED             0x00 /* 00000000 */
+#define LP5523_ENABLE                   0x40
+#define LP5523_AUTO_INC                 0x40
+#define LP5523_PWR_SAVE                 0x20
+#define LP5523_PWM_PWR_SAVE             0x04
+#define LP5523_CP_1                     0x08
+#define LP5523_CP_1_5                   0x10
+#define LP5523_CP_AUTO                  0x18
+#define LP5523_INT_CLK                  0x01
+#define LP5523_AUTO_CLK                 0x02
+#define LP5523_EN_LEDTEST               0x80
+#define LP5523_LEDTEST_DONE             0x80
+#define LP5523_DEFAULT_CURRENT          50 /* microAmps */
+#define LP5523_PROGRAM_LENGTH           32 /* in bytes */
+#define LP5523_PROGRAM_PAGES            6
+#define LP5523_ADC_SHORTCIRC_LIM        80
+#define LP5523_LEDS                     9
+#define LP5523_ENGINES                  3
+#define LP5523_ENG_MASK_BASE            0x30 /* 00110000 */
+#define LP5523_ENG_STATUS_MASK          0x07 /* 00000111 */
+#define LP5523_IRQ_FLAGS                IRQF_TRIGGER_FALLING
+#define LP5523_EXT_CLK_USED             0x08
+#define LED_ACTIVE(mux, led)            (!!(mux & (0x0001 << led)))
+#define SHIFT_MASK(id)                  (((id) - 1) * 2)
+struct lp5523_engine {
+        const struct attribute_group *attributes;
+        int             id;
+        u8              mode;
+        u8              prog_page;
+        u8              mux_page;
+        u16             led_mux;
+        u8              engine_mask;
+};
+struct lp5523_led {
+        int                     id;
+        u8                      chan_nr;
+        u8                      led_current;
+        u8                      max_current;
+        struct led_classdev     cdev;
+        struct work_struct      brightness_work;
+        u8                      brightness;
+};
+struct lp5523_chip {
+        struct mutex            lock; /* Serialize control */
+        struct i2c_client       *client;
+        struct lp5523_engine    engines[LP5523_ENGINES];
+        struct lp5523_led       leds[LP5523_LEDS];
+        struct lp5523_platform_data *pdata;
+        u8                      num_channels;
+        u8                      num_leds;
+};
+#define cdev_to_led(c)          container_of(c, struct lp5523_led, cdev)
+static struct lp5523_chip *engine_to_lp5523(struct lp5523_engine *engine)
+{
+        return container_of(engine, struct lp5523_chip,
+                            engines[engine->id - 1]);
+}
+static struct lp5523_chip *led_to_lp5523(struct lp5523_led *led)
+{
+        return container_of(led, struct lp5523_chip,
+                            leds[led->id]);
+}
+static int lp5523_set_mode(struct lp5523_engine *engine, u8 mode);
+static int lp5523_set_engine_mode(struct lp5523_engine *engine, u8 mode);
+static int lp5523_load_program(struct lp5523_engine *engine, u8 *pattern);
+static void lp5523_led_brightness_work(struct work_struct *work);
+static int lp5523_write(struct i2c_client *client, u8 reg, u8 value)
+{
+        return i2c_smbus_write_byte_data(client, reg, value);
+}
+static int lp5523_read(struct i2c_client *client, u8 reg, u8 *buf)
+{
+        s32 ret = i2c_smbus_read_byte_data(client, reg);
+        if (ret < 0)
+                return -EIO;
+        *buf = ret;
+        return 0;
+}
+static int lp5523_detect(struct i2c_client *client)
+{
+        int ret;
+        u8 buf;
+        ret = lp5523_write(client, LP5523_REG_ENABLE, 0x40);
+        if (ret)
+                return ret;
+        ret = lp5523_read(client, LP5523_REG_ENABLE, &buf);
+        if (ret)
+                return ret;
+        if (buf == 0x40)
+                return 0;
+        else
+                return -ENODEV;
+}
+static int lp5523_configure(struct i2c_client *client)
+{
+        struct lp5523_chip *chip = i2c_get_clientdata(client);
+        int ret = 0;
+        u8 status;
+        /* one pattern per engine setting led mux start and stop addresses */
+        u8 pattern[][LP5523_PROGRAM_LENGTH] =  {
+                { 0x9c, 0x30, 0x9c, 0xb0, 0x9d, 0x80, 0xd8, 0x00, 0},
+                { 0x9c, 0x40, 0x9c, 0xc0, 0x9d, 0x80, 0xd8, 0x00, 0},
+                { 0x9c, 0x50, 0x9c, 0xd0, 0x9d, 0x80, 0xd8, 0x00, 0},
+        };
+        lp5523_write(client, LP5523_REG_RESET, 0xff);
+        usleep_range(10000, 100000);
+        ret |= lp5523_write(client, LP5523_REG_ENABLE, LP5523_ENABLE);
+        /* Chip startup time after reset is 500 us */
+        usleep_range(1000, 10000);
+        ret |= lp5523_write(client, LP5523_REG_CONFIG,
+                            LP5523_AUTO_INC | LP5523_PWR_SAVE |
+                            LP5523_CP_AUTO | LP5523_AUTO_CLK |
+                            LP5523_PWM_PWR_SAVE);
+        /* turn on all leds */
+        ret |= lp5523_write(client, LP5523_REG_ENABLE_LEDS_MSB, 0x01);
+        ret |= lp5523_write(client, LP5523_REG_ENABLE_LEDS_LSB, 0xff);
+        /* hardcode 32 bytes of memory for each engine from program memory */
+        ret |= lp5523_write(client, LP5523_REG_CH1_PROG_START, 0x00);
+        ret |= lp5523_write(client, LP5523_REG_CH2_PROG_START, 0x10);
+        ret |= lp5523_write(client, LP5523_REG_CH3_PROG_START, 0x20);
+        /* write led mux address space for each channel */
+        ret |= lp5523_load_program(&chip->engines[0], pattern[0]);
+        ret |= lp5523_load_program(&chip->engines[1], pattern[1]);
+        ret |= lp5523_load_program(&chip->engines[2], pattern[2]);
+        if (ret) {
+                dev_err(&client->dev, "could not load mux programs\n");
+                return -1;
+        }
+        /* set all engines exec state and mode to run 00101010 */
+        ret |= lp5523_write(client, LP5523_REG_ENABLE,
+                            (LP5523_CMD_RUN | LP5523_ENABLE));
+        ret |= lp5523_write(client, LP5523_REG_OP_MODE, LP5523_CMD_RUN);
+        if (ret) {
+                dev_err(&client->dev, "could not start mux programs\n");
+                return -1;
+        }
+        /* Wait 3ms and check the engine status */
+        usleep_range(3000, 20000);
+        lp5523_read(client, LP5523_REG_STATUS, &status);
+        status &= LP5523_ENG_STATUS_MASK;
+        if (status == LP5523_ENG_STATUS_MASK) {
+                dev_dbg(&client->dev, "all engines configured\n");
+        } else {
+                dev_info(&client->dev, "status == %x\n", status);
+                dev_err(&client->dev, "cound not configure LED engine\n");
+                return -1;
+        }
+        dev_info(&client->dev, "disabling engines\n");
+        ret |= lp5523_write(client, LP5523_REG_OP_MODE, LP5523_CMD_DISABLED);
+        return ret;
+}
+static int lp5523_set_engine_mode(struct lp5523_engine *engine, u8 mode)
+{
+        struct lp5523_chip *chip = engine_to_lp5523(engine);
+        struct i2c_client *client = chip->client;
+        int ret;
+        u8 engine_state;
+        ret = lp5523_read(client, LP5523_REG_OP_MODE, &engine_state);
+        if (ret)
+                goto fail;
+        engine_state &= ~(engine->engine_mask);
+        /* set mode only for this engine */
+        mode &= engine->engine_mask;
+        engine_state |= mode;
+        ret |= lp5523_write(client, LP5523_REG_OP_MODE, engine_state);
+fail:
+        return ret;
+}
+static int lp5523_load_mux(struct lp5523_engine *engine, u16 mux)
+{
+        struct lp5523_chip *chip = engine_to_lp5523(engine);
+        struct i2c_client *client = chip->client;
+        int ret = 0;
+        ret |= lp5523_set_engine_mode(engine, LP5523_CMD_LOAD);
+        ret |= lp5523_write(client, LP5523_REG_PROG_PAGE_SEL, engine->mux_page);
+        ret |= lp5523_write(client, LP5523_REG_PROG_MEM,
+                            (u8)(mux >> 8));
+        ret |= lp5523_write(client, LP5523_REG_PROG_MEM + 1, (u8)(mux));
+        engine->led_mux = mux;
+        return ret;
+}
+static int lp5523_load_program(struct lp5523_engine *engine, u8 *pattern)
+{
+        struct lp5523_chip *chip = engine_to_lp5523(engine);
+        struct i2c_client *client = chip->client;
+        int ret = 0;
+        ret |= lp5523_set_engine_mode(engine, LP5523_CMD_LOAD);
+        ret |= lp5523_write(client, LP5523_REG_PROG_PAGE_SEL,
+                            engine->prog_page);
+        ret |= i2c_smbus_write_i2c_block_data(client, LP5523_REG_PROG_MEM,
+                                              LP5523_PROGRAM_LENGTH, pattern);
+        return ret;
+}
+static int lp5523_run_program(struct lp5523_engine *engine)
+{
+        struct lp5523_chip *chip = engine_to_lp5523(engine);
+        struct i2c_client *client = chip->client;
+        int ret;
+        ret = lp5523_write(client, LP5523_REG_ENABLE,
+                                        LP5523_CMD_RUN | LP5523_ENABLE);
+        if (ret)
+                goto fail;
+        ret = lp5523_set_engine_mode(engine, LP5523_CMD_RUN);
+fail:
+        return ret;
+}
+static int lp5523_mux_parse(const char *buf, u16 *mux, size_t len)
+{
+        int i;
+        u16 tmp_mux = 0;
+        len = len < LP5523_LEDS ? len : LP5523_LEDS;
+        for (i = 0; i < len; i++) {
+                switch (buf[i]) {
+                case '1':
+                        tmp_mux |= (1 << i);
+                        break;
+                case '0':
+                        break;
+                case '\n':
+                        i = len;
+                        break;
+                default:
+                        return -1;
+                }
+        }
+        *mux = tmp_mux;
+        return 0;
+}
+static void lp5523_mux_to_array(u16 led_mux, char *array)
+{
+        int i, pos = 0;
+        for (i = 0; i < LP5523_LEDS; i++)
+                pos += sprintf(array + pos, "%x", LED_ACTIVE(led_mux, i));
+        array[pos] = '\0';
+}
+/*--------------------------------------------------------------*/
+/*                      Sysfs interface                         */
+/*--------------------------------------------------------------*/
+static ssize_t show_engine_leds(struct device *dev,
+                            struct device_attribute *attr,
+                            char *buf, int nr)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct lp5523_chip *chip = i2c_get_clientdata(client);
+        char mux[LP5523_LEDS + 1];
+        lp5523_mux_to_array(chip->engines[nr - 1].led_mux, mux);
+        return sprintf(buf, "%s\n", mux);
+}
+#define show_leds(nr)                                                   \
+static ssize_t show_engine##nr##_leds(struct device *dev,               \
+                            struct device_attribute *attr,              \
+                            char *buf)                                  \
+{                                                                       \
+        return show_engine_leds(dev, attr, buf, nr);                    \
+}
+show_leds(1)
+show_leds(2)
+show_leds(3)
+static ssize_t store_engine_leds(struct device *dev,
+                             struct device_attribute *attr,
+                             const char *buf, size_t len, int nr)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct lp5523_chip *chip = i2c_get_clientdata(client);
+        u16 mux = 0;
+        if (lp5523_mux_parse(buf, &mux, len))
+                return -EINVAL;
+        if (lp5523_load_mux(&chip->engines[nr - 1], mux))
+                return -EINVAL;
+        return len;
+}
+#define store_leds(nr)                                          \
+static ssize_t store_engine##nr##_leds(struct device *dev,      \
+                             struct device_attribute *attr,     \
+                             const char *buf, size_t len)       \
+{                                                               \
+        return store_engine_leds(dev, attr, buf, len, nr);      \
+}
+store_leds(1)
+store_leds(2)
+store_leds(3)
+static ssize_t lp5523_selftest(struct device *dev,
+                               struct device_attribute *attr,
+                               char *buf)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct lp5523_chip *chip = i2c_get_clientdata(client);
+        int i, ret, pos = 0;
+        int led = 0;
+        u8 status, adc, vdd;
+        mutex_lock(&chip->lock);
+        ret = lp5523_read(chip->client, LP5523_REG_STATUS, &status);
+        if (ret < 0)
+                goto fail;
+        /* Check that ext clock is really in use if requested */
+        if ((chip->pdata) && (chip->pdata->clock_mode == LP5523_CLOCK_EXT))
+                if  ((status & LP5523_EXT_CLK_USED) == 0)
+                        goto fail;
+        /* Measure VDD (i.e. VBAT) first (channel 16 corresponds to VDD) */
+        lp5523_write(chip->client, LP5523_REG_LED_TEST_CTRL,
+                                    LP5523_EN_LEDTEST | 16);
+        usleep_range(3000, 10000);
+        ret = lp5523_read(chip->client, LP5523_REG_STATUS, &status);
+        if (!(status & LP5523_LEDTEST_DONE))
+                usleep_range(3000, 10000);
+        ret |= lp5523_read(chip->client, LP5523_REG_LED_TEST_ADC, &vdd);
+        vdd--;  /* There may be some fluctuation in measurement */
+        for (i = 0; i < LP5523_LEDS; i++) {
+                /* Skip non-existing channels */
+                if (chip->pdata->led_config[i].led_current == 0)
+                        continue;
+                /* Set default current */
+                lp5523_write(chip->client,
+                        LP5523_REG_LED_CURRENT_BASE + i,
+                        chip->pdata->led_config[i].led_current);
+                lp5523_write(chip->client, LP5523_REG_LED_PWM_BASE + i, 0xff);
+                /* let current stabilize 2ms before measurements start */
+                usleep_range(2000, 10000);
+                lp5523_write(chip->client,
+                             LP5523_REG_LED_TEST_CTRL,
+                             LP5523_EN_LEDTEST | i);
+                /* ledtest takes 2.7ms */
+                usleep_range(3000, 10000);
+                ret = lp5523_read(chip->client, LP5523_REG_STATUS, &status);
+                if (!(status & LP5523_LEDTEST_DONE))
+                        usleep_range(3000, 10000);
+                ret |= lp5523_read(chip->client, LP5523_REG_LED_TEST_ADC, &adc);
+                if (adc >= vdd || adc < LP5523_ADC_SHORTCIRC_LIM)
+                        pos += sprintf(buf + pos, "LED %d FAIL\n", i);
+                lp5523_write(chip->client, LP5523_REG_LED_PWM_BASE + i, 0x00);
+                /* Restore current */
+                lp5523_write(chip->client,
+                        LP5523_REG_LED_CURRENT_BASE + i,
+                        chip->leds[led].led_current);
+                led++;
+        }
+        if (pos == 0)
+                pos = sprintf(buf, "OK\n");
+        goto release_lock;
+fail:
+        pos = sprintf(buf, "FAIL\n");
+release_lock:
+        mutex_unlock(&chip->lock);
+        return pos;
+}
+static void lp5523_set_brightness(struct led_classdev *cdev,
+                             enum led_brightness brightness)
+{
+        struct lp5523_led *led = cdev_to_led(cdev);
+        led->brightness = (u8)brightness;
+        schedule_work(&led->brightness_work);
+}
+static void lp5523_led_brightness_work(struct work_struct *work)
+{
+        struct lp5523_led *led = container_of(work,
+                                              struct lp5523_led,
+                                              brightness_work);
+        struct lp5523_chip *chip = led_to_lp5523(led);
+        struct i2c_client *client = chip->client;
+        mutex_lock(&chip->lock);
+        lp5523_write(client, LP5523_REG_LED_PWM_BASE + led->chan_nr,
+                     led->brightness);
+        mutex_unlock(&chip->lock);
+}
+static int lp5523_do_store_load(struct lp5523_engine *engine,
+                                const char *buf, size_t len)
+{
+        struct lp5523_chip *chip = engine_to_lp5523(engine);
+        struct i2c_client *client = chip->client;
+        int  ret, nrchars, offset = 0, i = 0;
+        char c[3];
+        unsigned cmd;
+        u8 pattern[LP5523_PROGRAM_LENGTH] = {0};
+        while ((offset < len - 1) && (i < LP5523_PROGRAM_LENGTH)) {
+                /* separate sscanfs because length is working only for %s */
+                ret = sscanf(buf + offset, "%2s%n ", c, &nrchars);
+                ret = sscanf(c, "%2x", &cmd);
+                if (ret != 1)
+                        goto fail;
+                pattern[i] = (u8)cmd;
+                offset += nrchars;
+                i++;
+        }
+        /* Each instruction is 16bit long. Check that length is even */
+        if (i % 2)
+                goto fail;
+        mutex_lock(&chip->lock);
+        ret = lp5523_load_program(engine, pattern);
+        mutex_unlock(&chip->lock);
+        if (ret) {
+                dev_err(&client->dev, "failed loading pattern\n");
+                return ret;
+        }
+        return len;
+fail:
+        dev_err(&client->dev, "wrong pattern format\n");
+        return -EINVAL;
+}
+static ssize_t store_engine_load(struct device *dev,
+                                     struct device_attribute *attr,
+                                     const char *buf, size_t len, int nr)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct lp5523_chip *chip = i2c_get_clientdata(client);
+        return lp5523_do_store_load(&chip->engines[nr - 1], buf, len);
+}
+#define store_load(nr)                                                  \
+static ssize_t store_engine##nr##_load(struct device *dev,              \
+                                     struct device_attribute *attr,     \
+                                     const char *buf, size_t len)       \
+{                                                                       \
+        return store_engine_load(dev, attr, buf, len, nr);              \
+}
+store_load(1)
+store_load(2)
+store_load(3)
+static ssize_t show_engine_mode(struct device *dev,
+                                struct device_attribute *attr,
+                                char *buf, int nr)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct lp5523_chip *chip = i2c_get_clientdata(client);
+        switch (chip->engines[nr - 1].mode) {
+        case LP5523_CMD_RUN:
+                return sprintf(buf, "run\n");
+        case LP5523_CMD_LOAD:
+                return sprintf(buf, "load\n");
+        case LP5523_CMD_DISABLED:
+                return sprintf(buf, "disabled\n");
+        default:
+                return sprintf(buf, "disabled\n");
+        }
+}
+#define show_mode(nr)                                                   \
+static ssize_t show_engine##nr##_mode(struct device *dev,               \
+                                    struct device_attribute *attr,      \
+                                    char *buf)                          \
+{                                                                       \
+        return show_engine_mode(dev, attr, buf, nr);                    \
+}
+show_mode(1)
+show_mode(2)
+show_mode(3)
+static ssize_t store_engine_mode(struct device *dev,
+                                 struct device_attribute *attr,
+                                 const char *buf, size_t len, int nr)
+{
+        struct i2c_client *client = to_i2c_client(dev);
+        struct lp5523_chip *chip = i2c_get_clientdata(client);
+        struct lp5523_engine *engine = &chip->engines[nr - 1];
+        mutex_lock(&chip->lock);
+        if (!strncmp(buf, "run", 3))
+                lp5523_set_mode(engine, LP5523_CMD_RUN);
+        else if (!strncmp(buf, "load", 4))
+                lp5523_set_mode(engine, LP5523_CMD_LOAD);
+        else if (!strncmp(buf, "disabled", 8))
+                lp5523_set_mode(engine, LP5523_CMD_DISABLED);
+        mutex_unlock(&chip->lock);
+        return len;
+}
+#define store_mode(nr)                                                  \
+static ssize_t store_engine##nr##_mode(struct device *dev,              \
+                                     struct device_attribute *attr,     \
+                                     const char *buf, size_t len)       \
+{                                                                       \
+        return store_engine_mode(dev, attr, buf, len, nr);              \
+}
+store_mode(1)
+store_mode(2)
+store_mode(3)
+static ssize_t show_max_current(struct device *dev,
+                            struct device_attribute *attr,
+                            char *buf)
+{
+        struct led_classdev *led_cdev = dev_get_drvdata(dev);
+        struct lp5523_led *led = cdev_to_led(led_cdev);
+        return sprintf(buf, "%d\n", led->max_current);
+}
+static ssize_t show_current(struct device *dev,
+                            struct device_attribute *attr,
+                            char *buf)
+{
+        struct led_classdev *led_cdev = dev_get_drvdata(dev);
+        struct lp5523_led *led = cdev_to_led(led_cdev);
+        return sprintf(buf, "%d\n", led->led_current);
+}
+static ssize_t store_current(struct device *dev,
+                             struct device_attribute *attr,
+                             const char *buf, size_t len)
+{
+        struct led_classdev *led_cdev = dev_get_drvdata(dev);
+        struct lp5523_led *led = cdev_to_led(led_cdev);
+        struct lp5523_chip *chip = led_to_lp5523(led);
+        ssize_t ret;
+        unsigned long curr;
+        if (strict_strtoul(buf, 0, &curr))
+                return -EINVAL;
+        if (curr > led->max_current)
+                return -EINVAL;
+        mutex_lock(&chip->lock);
+        ret = lp5523_write(chip->client,
+                        LP5523_REG_LED_CURRENT_BASE + led->chan_nr,
+                        (u8)curr);
+        mutex_unlock(&chip->lock);
+        if (ret < 0)
+                return ret;
+        led->led_current = (u8)curr;
+        return len;
+}
+/* led class device attributes */
+static DEVICE_ATTR(led_current, S_IRUGO | S_IWUGO, show_current, store_current);
+static DEVICE_ATTR(max_current, S_IRUGO , show_max_current, NULL);
+static struct attribute *lp5523_led_attributes[] = {
+        &dev_attr_led_current.attr,
+        &dev_attr_max_current.attr,
+        NULL,
+};
+static struct attribute_group lp5523_led_attribute_group = {
+        .attrs = lp5523_led_attributes
+};
+/* device attributes */
+static DEVICE_ATTR(engine1_mode, S_IRUGO | S_IWUGO,
+                   show_engine1_mode, store_engine1_mode);
+static DEVICE_ATTR(engine2_mode, S_IRUGO | S_IWUGO,
+                   show_engine2_mode, store_engine2_mode);
+static DEVICE_ATTR(engine3_mode, S_IRUGO | S_IWUGO,
+                   show_engine3_mode, store_engine3_mode);
+static DEVICE_ATTR(engine1_leds, S_IRUGO | S_IWUGO,
+                   show_engine1_leds, store_engine1_leds);
+static DEVICE_ATTR(engine2_leds, S_IRUGO | S_IWUGO,
+                   show_engine2_leds, store_engine2_leds);
+static DEVICE_ATTR(engine3_leds, S_IRUGO | S_IWUGO,
+                   show_engine3_leds, store_engine3_leds);
+static DEVICE_ATTR(engine1_load, S_IWUGO, NULL, store_engine1_load);
+static DEVICE_ATTR(engine2_load, S_IWUGO, NULL, store_engine2_load);
+static DEVICE_ATTR(engine3_load, S_IWUGO, NULL, store_engine3_load);
+static DEVICE_ATTR(selftest, S_IRUGO, lp5523_selftest, NULL);
+static struct attribute *lp5523_attributes[] = {
+        &dev_attr_engine1_mode.attr,
+        &dev_attr_engine2_mode.attr,
+        &dev_attr_engine3_mode.attr,
+        &dev_attr_selftest.attr,
+        NULL
+};
+static struct attribute *lp5523_engine1_attributes[] = {
+        &dev_attr_engine1_load.attr,
+        &dev_attr_engine1_leds.attr,
+        NULL
+};
+static struct attribute *lp5523_engine2_attributes[] = {
+        &dev_attr_engine2_load.attr,
+        &dev_attr_engine2_leds.attr,
+        NULL
+};
+static struct attribute *lp5523_engine3_attributes[] = {
+        &dev_attr_engine3_load.attr,
+        &dev_attr_engine3_leds.attr,
+        NULL
+};
+static const struct attribute_group lp5523_group = {
+        .attrs = lp5523_attributes,
+};
+static const struct attribute_group lp5523_engine_group[] = {
+        {.attrs = lp5523_engine1_attributes },
+        {.attrs = lp5523_engine2_attributes },
+        {.attrs = lp5523_engine3_attributes },
+};
+static int lp5523_register_sysfs(struct i2c_client *client)
+{
+        struct device *dev = &client->dev;
+        int ret;
+        ret = sysfs_create_group(&dev->kobj, &lp5523_group);
+        if (ret < 0)
+                return ret;
+        return 0;
+}
+static void lp5523_unregister_sysfs(struct i2c_client *client)
+{
+        struct lp5523_chip *chip = i2c_get_clientdata(client);
+        struct device *dev = &client->dev;
+        int i;
+        sysfs_remove_group(&dev->kobj, &lp5523_group);
+        for (i = 0; i < ARRAY_SIZE(chip->engines); i++)
+                if (chip->engines[i].mode == LP5523_CMD_LOAD)
+                        sysfs_remove_group(&dev->kobj, &lp5523_engine_group[i]);
+        for (i = 0; i < chip->num_leds; i++)
+                sysfs_remove_group(&chip->leds[i].cdev.dev->kobj,
+                                &lp5523_led_attribute_group);
+}
+/*--------------------------------------------------------------*/
+/*                      Set chip operating mode                 */
+/*--------------------------------------------------------------*/
+static int lp5523_set_mode(struct lp5523_engine *engine, u8 mode)
+{
+        /*  engine to chip */
+        struct lp5523_chip *chip = engine_to_lp5523(engine);
+        struct i2c_client *client = chip->client;
+        struct device *dev = &client->dev;
+        int ret = 0;
+        /* if in that mode already do nothing, except for run */
+        if (mode == engine->mode && mode != LP5523_CMD_RUN)
+                return 0;
+        if (mode == LP5523_CMD_RUN) {
+                ret = lp5523_run_program(engine);
+        } else if (mode == LP5523_CMD_LOAD) {
+                lp5523_set_engine_mode(engine, LP5523_CMD_DISABLED);
+                lp5523_set_engine_mode(engine, LP5523_CMD_LOAD);
+                ret = sysfs_create_group(&dev->kobj, engine->attributes);
+                if (ret)
+                        return ret;
+        } else if (mode == LP5523_CMD_DISABLED) {
+                lp5523_set_engine_mode(engine, LP5523_CMD_DISABLED);
+        }
+        /* remove load attribute from sysfs if not in load mode */
+        if (engine->mode == LP5523_CMD_LOAD && mode != LP5523_CMD_LOAD)
+                sysfs_remove_group(&dev->kobj, engine->attributes);
+        engine->mode = mode;
+        return ret;
+}
+/*--------------------------------------------------------------*/
+/*                      Probe, Attach, Remove                   */
+/*--------------------------------------------------------------*/
+static int __init lp5523_init_engine(struct lp5523_engine *engine, int id)
+{
+        if (id < 1 || id > LP5523_ENGINES)
+                return -1;
+        engine->id = id;
+        engine->engine_mask = LP5523_ENG_MASK_BASE >> SHIFT_MASK(id);
+        engine->prog_page = id - 1;
+        engine->mux_page = id + 2;
+        engine->attributes = &lp5523_engine_group[id - 1];
+        return 0;
+}
+static int __init lp5523_init_led(struct lp5523_led *led, struct device *dev,
+                           int chan, struct lp5523_platform_data *pdata)
+{
+        char name[32];
+        int res;
+        if (chan >= LP5523_LEDS)
+                return -EINVAL;
+        if (pdata->led_config[chan].led_current) {
+                led->led_current = pdata->led_config[chan].led_current;
+                led->max_current = pdata->led_config[chan].max_current;
+                led->chan_nr = pdata->led_config[chan].chan_nr;
+                if (led->chan_nr >= LP5523_LEDS) {
+                        dev_err(dev, "Use channel numbers between 0 and %d\n",
+                                LP5523_LEDS - 1);
+                        return -EINVAL;
+                }
+                snprintf(name, 32, "lp5523:channel%d", chan);
+                led->cdev.name = name;
+                led->cdev.brightness_set = lp5523_set_brightness;
+                res = led_classdev_register(dev, &led->cdev);
+                if (res < 0) {
+                        dev_err(dev, "couldn't register led on channel %d\n",
+                                chan);
+                        return res;
+                }
+                res = sysfs_create_group(&led->cdev.dev->kobj,
+                                &lp5523_led_attribute_group);
+                if (res < 0) {
+                        dev_err(dev, "couldn't register current attribute\n");
+                        led_classdev_unregister(&led->cdev);
+                        return res;
+                }
+        } else {
+                led->led_current = 0;
+        }
+        return 0;
+}
+static struct i2c_driver lp5523_driver;
+static int lp5523_probe(struct i2c_client *client,
+                        const struct i2c_device_id *id)
+{
+        struct lp5523_chip              *chip;
+        struct lp5523_platform_data     *pdata;
+        int ret, i, led;
+        chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+        if (!chip)
+                return -ENOMEM;
+        i2c_set_clientdata(client, chip);
+        chip->client = client;
+        pdata = client->dev.platform_data;
+        if (!pdata) {
+                dev_err(&client->dev, "no platform data\n");
+                ret = -EINVAL;
+                goto fail1;
+        }
+        mutex_init(&chip->lock);
+        chip->pdata   = pdata;
+        if (pdata->setup_resources) {
+                ret = pdata->setup_resources();
+                if (ret < 0)
+                        goto fail1;
+        }
+        if (pdata->enable) {
+                pdata->enable(0);
+                usleep_range(1000, 10000);
+                pdata->enable(1);
+                usleep_range(1000, 10000); /* Spec says min 500us */
+        }
+        ret = lp5523_detect(client);
+        if (ret)
+                goto fail2;
+        dev_info(&client->dev, "LP5523 Programmable led chip found\n");
+        /* Initialize engines */
+        for (i = 0; i < ARRAY_SIZE(chip->engines); i++) {
+                ret = lp5523_init_engine(&chip->engines[i], i + 1);
+                if (ret) {
+                        dev_err(&client->dev, "error initializing engine\n");
+                        goto fail2;
+                }
+        }
+        ret = lp5523_configure(client);
+        if (ret < 0) {
+                dev_err(&client->dev, "error configuring chip\n");
+                goto fail2;
+        }
+        /* Initialize leds */
+        chip->num_channels = pdata->num_channels;
+        chip->num_leds = 0;
+        led = 0;
+        for (i = 0; i < pdata->num_channels; i++) {
+                /* Do not initialize channels that are not connected */
+                if (pdata->led_config[i].led_current == 0)
+                        continue;
+                ret = lp5523_init_led(&chip->leds[led], &client->dev, i, pdata);
+                if (ret) {
+                        dev_err(&client->dev, "error initializing leds\n");
+                        goto fail3;
+                }
+                chip->num_leds++;
+                chip->leds[led].id = led;
+                /* Set LED current */
+                lp5523_write(client,
+                          LP5523_REG_LED_CURRENT_BASE + chip->leds[led].chan_nr,
+                          chip->leds[led].led_current);
+                INIT_WORK(&(chip->leds[led].brightness_work),
+                        lp5523_led_brightness_work);
+                led++;
+        }
+        ret = lp5523_register_sysfs(client);
+        if (ret) {
+                dev_err(&client->dev, "registering sysfs failed\n");
+                goto fail3;
+        }
+        return ret;
+fail3:
+        for (i = 0; i < chip->num_leds; i++) {
+                led_classdev_unregister(&chip->leds[i].cdev);
+                cancel_work_sync(&chip->leds[i].brightness_work);
+        }
+fail2:
+        if (pdata->enable)
+                pdata->enable(0);
+        if (pdata->release_resources)
+                pdata->release_resources();
+fail1:
+        kfree(chip);
+        return ret;
+}
+static int lp5523_remove(struct i2c_client *client)
+{
+        struct lp5523_chip *chip = i2c_get_clientdata(client);
+        int i;
+        lp5523_unregister_sysfs(client);
+        for (i = 0; i < chip->num_leds; i++) {
+                led_classdev_unregister(&chip->leds[i].cdev);
+                cancel_work_sync(&chip->leds[i].brightness_work);
+        }
+        if (chip->pdata->enable)
+                chip->pdata->enable(0);
+        if (chip->pdata->release_resources)
+                chip->pdata->release_resources();
+        kfree(chip);
+        return 0;
+}
+static const struct i2c_device_id lp5523_id[] = {
+        { "lp5523", 0 },
+        { }
+};
+MODULE_DEVICE_TABLE(i2c, lp5523_id);
+static struct i2c_driver lp5523_driver = {
+        .driver = {
+                .name   = "lp5523",
+        },
+        .probe          = lp5523_probe,
+        .remove         = lp5523_remove,
+        .id_table       = lp5523_id,
+};
+static int __init lp5523_init(void)
+{
+        int ret;
+        ret = i2c_add_driver(&lp5523_driver);
+        if (ret < 0)
+                printk(KERN_ALERT "Adding lp5523 driver failed\n");
+        return ret;
+}
+static void __exit lp5523_exit(void)
+{
+        i2c_del_driver(&lp5523_driver);
+}
+module_init(lp5523_init);
+module_exit(lp5523_exit);
+MODULE_AUTHOR("Mathias Nyman <mathias.nyman@nokia.com>");
+MODULE_DESCRIPTION("LP5523 LED engine");
+MODULE_LICENSE("GPL");
diff --git a/drivers/leds/ledtrig-timer.c b/drivers/leds/ledtrig-timer.c
index 82b77bd482ff..b09bcbeade9c 100644
--- a/drivers/leds/ledtrig-timer.c
+++ b/drivers/leds/ledtrig-timer.c
@@ -12,73 +12,25 @@
 */
 #include <linux/module.h>
-#include <linux/jiffies.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/list.h>
-#include <linux/spinlock.h>
 #include <linux/device.h>
-#include <linux/sysdev.h>
-#include <linux/timer.h>
 #include <linux/ctype.h>
 #include <linux/leds.h>
-#include <linux/slab.h>
 #include "leds.h"
-struct timer_trig_data {
-        int brightness_on;              /* LED brightness during "on" period.
-                                         * (LED_OFF < brightness_on <= LED_FULL)
-                                         */
-        unsigned long delay_on;         /* milliseconds on */
-        unsigned long delay_off;        /* milliseconds off */
-        struct timer_list timer;
-};
-static void led_timer_function(unsigned long data)
-{
-        struct led_classdev *led_cdev = (struct led_classdev *) data;
-        struct timer_trig_data *timer_data = led_cdev->trigger_data;
-        unsigned long brightness;
-        unsigned long delay;
-        if (!timer_data->delay_on || !timer_data->delay_off) {
-                led_set_brightness(led_cdev, LED_OFF);
-                return;
-        }
-        brightness = led_get_brightness(led_cdev);
-        if (!brightness) {
-                /* Time to switch the LED on. */
-                brightness = timer_data->brightness_on;
-                delay = timer_data->delay_on;
-        } else {
-                /* Store the current brightness value to be able
-                 * to restore it when the delay_off period is over.
-                 */
-                timer_data->brightness_on = brightness;
-                brightness = LED_OFF;
-                delay = timer_data->delay_off;
-        }
-        led_set_brightness(led_cdev, brightness);
-        mod_timer(&timer_data->timer, jiffies + msecs_to_jiffies(delay));
-}
 static ssize_t led_delay_on_show(struct device *dev,
                struct device_attribute *attr, char *buf)
 {
        struct led_classdev *led_cdev = dev_get_drvdata(dev);
-        struct timer_trig_data *timer_data = led_cdev->trigger_data;
-        return sprintf(buf, "%lu\n", timer_data->delay_on);
+        return sprintf(buf, "%lu\n", led_cdev->blink_delay_on);
 }
 static ssize_t led_delay_on_store(struct device *dev,
                struct device_attribute *attr, const char *buf, size_t size)
 {
        struct led_classdev *led_cdev = dev_get_drvdata(dev);
-        struct timer_trig_data *timer_data = led_cdev->trigger_data;
        int ret = -EINVAL;
        char *after;
        unsigned long state = simple_strtoul(buf, &after, 10);
@@ -88,21 +40,7 @@ static ssize_t led_delay_on_store(struct device *dev,
                count++;
        if (count == size) {
-                if (timer_data->delay_on != state) {
+                led_blink_set(led_cdev, &state, &led_cdev->blink_delay_off);
-                        /* the new value differs from the previous */
-                        timer_data->delay_on = state;
-                        /* deactivate previous settings */
-                        del_timer_sync(&timer_data->timer);
-                        /* try to activate hardware acceleration, if any */
-                        if (!led_cdev->blink_set ||
-                            led_cdev->blink_set(led_cdev,
-                              &timer_data->delay_on, &timer_data->delay_off)) {
-                                /* no hardware acceleration, blink via timer */
-                                mod_timer(&timer_data->timer, jiffies + 1);
-                        }
-                }
                ret = count;
        }
@@ -113,16 +51,14 @@ static ssize_t led_delay_off_show(struct device *dev,
                struct device_attribute *attr, char *buf)
 {
        struct led_classdev *led_cdev = dev_get_drvdata(dev);
-        struct timer_trig_data *timer_data = led_cdev->trigger_data;
-        return sprintf(buf, "%lu\n", timer_data->delay_off);
+        return sprintf(buf, "%lu\n", led_cdev->blink_delay_off);
 }
 static ssize_t led_delay_off_store(struct device *dev,
                struct device_attribute *attr, const char *buf, size_t size)
 {
        struct led_classdev *led_cdev = dev_get_drvdata(dev);
-        struct timer_trig_data *timer_data = led_cdev->trigger_data;
        int ret = -EINVAL;
        char *after;
        unsigned long state = simple_strtoul(buf, &after, 10);
@@ -132,21 +68,7 @@ static ssize_t led_delay_off_store(struct device *dev,
                count++;
        if (count == size) {
-                if (timer_data->delay_off != state) {
+                led_blink_set(led_cdev, &led_cdev->blink_delay_on, &state);
-                        /* the new value differs from the previous */
-                        timer_data->delay_off = state;
-                        /* deactivate previous settings */
-                        del_timer_sync(&timer_data->timer);
-                        /* try to activate hardware acceleration, if any */
-                        if (!led_cdev->blink_set ||
-                            led_cdev->blink_set(led_cdev,
-                              &timer_data->delay_on, &timer_data->delay_off)) {
-                                /* no hardware acceleration, blink via timer */
-                                mod_timer(&timer_data->timer, jiffies + 1);
-                        }
-                }
                ret = count;
        }
@@ -158,60 +80,34 @@ static DEVICE_ATTR(delay_off, 0644, led_delay_off_show, led_delay_off_store);
 static void timer_trig_activate(struct led_classdev *led_cdev)
 {
-        struct timer_trig_data *timer_data;
        int rc;
-        timer_data = kzalloc(sizeof(struct timer_trig_data), GFP_KERNEL);
+        led_cdev->trigger_data = NULL;
-        if (!timer_data)
-                return;
-        timer_data->brightness_on = led_get_brightness(led_cdev);
-        if (timer_data->brightness_on == LED_OFF)
-                timer_data->brightness_on = led_cdev->max_brightness;
-        led_cdev->trigger_data = timer_data;
-        init_timer(&timer_data->timer);
-        timer_data->timer.function = led_timer_function;
-        timer_data->timer.data = (unsigned long) led_cdev;
        rc = device_create_file(led_cdev->dev, &dev_attr_delay_on);
        if (rc)
-                goto err_out;
+                return;
        rc = device_create_file(led_cdev->dev, &dev_attr_delay_off);
        if (rc)
                goto err_out_delayon;
-        /* If there is hardware support for blinking, start one
+        led_cdev->trigger_data = (void *)1;
-         * user friendly blink rate chosen by the driver.
-         */
-        if (led_cdev->blink_set)
-                led_cdev->blink_set(led_cdev,
-                        &timer_data->delay_on, &timer_data->delay_off);
        return;
 err_out_delayon:
        device_remove_file(led_cdev->dev, &dev_attr_delay_on);
-err_out:
-        led_cdev->trigger_data = NULL;
-        kfree(timer_data);
 }
 static void timer_trig_deactivate(struct led_classdev *led_cdev)
 {
-        struct timer_trig_data *timer_data = led_cdev->trigger_data;
+        if (led_cdev->trigger_data) {
-        unsigned long on = 0, off = 0;
-        if (timer_data) {
                device_remove_file(led_cdev->dev, &dev_attr_delay_on);
                device_remove_file(led_cdev->dev, &dev_attr_delay_off);
-                del_timer_sync(&timer_data->timer);
-                kfree(timer_data);
        }
-        /* If there is hardware support for blinking, stop it */
+        /* Stop blinking */
-        if (led_cdev->blink_set)
+        led_brightness_set(led_cdev, LED_OFF);
-                led_cdev->blink_set(led_cdev, &on, &off);
 }
 static struct led_trigger timer_led_trigger = {
diff --git a/drivers/macintosh/adb-iop.c b/drivers/macintosh/adb-iop.c
index 444696625171..f5f4da3d0b67 100644
--- a/drivers/macintosh/adb-iop.c
+++ b/drivers/macintosh/adb-iop.c
@@ -80,7 +80,7 @@ static void adb_iop_end_req(struct adb_request *req, int state)
 static void adb_iop_complete(struct iop_msg *msg)
 {
        struct adb_request *req;
-        uint flags;
+        unsigned long flags;
        local_irq_save(flags);
@@ -103,7 +103,7 @@ static void adb_iop_listen(struct iop_msg *msg)
 {
        struct adb_iopmsg *amsg = (struct adb_iopmsg *) msg->message;
        struct adb_request *req;
-        uint flags;
+        unsigned long flags;
 #ifdef DEBUG_ADB_IOP
        int i;
 #endif
diff --git a/drivers/misc/apds9802als.c b/drivers/misc/apds9802als.c
index f9b91ba8900c..0ed09358027e 100644
--- a/drivers/misc/apds9802als.c
+++ b/drivers/misc/apds9802als.c
@@ -123,7 +123,7 @@ static ssize_t als_sensing_range_store(struct device *dev,
 {
        struct i2c_client *client = to_i2c_client(dev);
        struct als_data *data = i2c_get_clientdata(client);
-        unsigned int ret_val;
+        int ret_val;
        unsigned long val;
        if (strict_strtoul(buf, 10, &val))
diff --git a/drivers/misc/bh1770glc.c b/drivers/misc/bh1770glc.c
index cee632e645e1..d79a972f2c79 100644
--- a/drivers/misc/bh1770glc.c
+++ b/drivers/misc/bh1770glc.c
@@ -649,7 +649,7 @@ static ssize_t bh1770_power_state_store(struct device *dev,
 {
        struct bh1770_chip *chip =  dev_get_drvdata(dev);
        unsigned long value;
-        size_t ret;
+        ssize_t ret;
        if (strict_strtoul(buf, 0, &value))
                return -EINVAL;
@@ -659,8 +659,12 @@ static ssize_t bh1770_power_state_store(struct device *dev,
                pm_runtime_get_sync(dev);
                ret = bh1770_lux_rate(chip, chip->lux_rate_index);
-                ret |= bh1770_lux_interrupt_control(chip, BH1770_ENABLE);
+                if (ret < 0) {
+                        pm_runtime_put(dev);
+                        goto leave;
+                }
+                ret = bh1770_lux_interrupt_control(chip, BH1770_ENABLE);
                if (ret < 0) {
                        pm_runtime_put(dev);
                        goto leave;
diff --git a/drivers/misc/isl29020.c b/drivers/misc/isl29020.c
index 34fe835921c4..ca47e6285075 100644
--- a/drivers/misc/isl29020.c
+++ b/drivers/misc/isl29020.c
@@ -87,7 +87,7 @@ static ssize_t als_sensing_range_store(struct device *dev,
                struct device_attribute *attr, const  char *buf, size_t count)
 {
        struct i2c_client *client = to_i2c_client(dev);
-        unsigned int ret_val;
+        int ret_val;
        unsigned long val;
        if (strict_strtoul(buf, 10, &val))
@@ -106,6 +106,8 @@ static ssize_t als_sensing_range_store(struct device *dev,
                val = 4;
        ret_val = i2c_smbus_read_byte_data(client, 0x00);
+        if (ret_val < 0)
+                return ret_val;
        ret_val &= 0xFC; /*reset the bit before setting them */
        ret_val |= val - 1;
diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig
index eea1ef2f502b..4396d4b9bfb9 100644
--- a/drivers/net/wireless/rt2x00/Kconfig
+++ b/drivers/net/wireless/rt2x00/Kconfig
@@ -221,9 +221,6 @@ config RT2X00_LIB_LEDS
        boolean
        default y if (RT2X00_LIB=y && LEDS_CLASS=y) || (RT2X00_LIB=m && LEDS_CLASS!=n)
-comment "rt2x00 leds support disabled due to modularized LEDS_CLASS and built-in rt2x00"
-        depends on RT2X00_LIB=y && LEDS_CLASS=m
 config RT2X00_LIB_DEBUGFS
        bool "Ralink debugfs support"
        depends on RT2X00_LIB && MAC80211_DEBUGFS
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index 68cf0c99138a..7b5080c45569 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -1159,11 +1159,11 @@ int __devinit rio_init_mports(void)
        list_for_each_entry(port, &rio_mports, node) {
                if (!request_mem_region(port->iores.start,
-                                        port->iores.end - port->iores.start,
+                                        resource_size(&port->iores),
                                        port->name)) {
                        printk(KERN_ERR
                               "RIO: Error requesting master port region 0x%016llx-0x%016llx\n",
-                               (u64)port->iores.start, (u64)port->iores.end - 1);
+                               (u64)port->iores.start, (u64)port->iores.end);
                        rc = -ENOMEM;
                        goto out;
                }
diff --git a/drivers/rtc/rtc-ds1302.c b/drivers/rtc/rtc-ds1302.c
index 359d1e04626c..f0d638922644 100644
--- a/drivers/rtc/rtc-ds1302.c
+++ b/drivers/rtc/rtc-ds1302.c
@@ -35,7 +35,7 @@
 #ifdef CONFIG_SH_SECUREEDGE5410
 #include <asm/rtc.h>
-#include <mach/snapgear.h>
+#include <mach/secureedge5410.h>
 #define RTC_RESET       0x1000
 #define RTC_IODATA      0x0800
diff --git a/drivers/sh/clk/core.c b/drivers/sh/clk/core.c
index fd0d1b98901c..09615b51d591 100644
--- a/drivers/sh/clk/core.c
+++ b/drivers/sh/clk/core.c
@@ -90,8 +90,8 @@ struct clk_rate_round_data {
 static long clk_rate_round_helper(struct clk_rate_round_data *rounder)
 {
        unsigned long rate_error, rate_error_prev = ~0UL;
-        unsigned long rate_best_fit = rounder->rate;
        unsigned long highest, lowest, freq;
+        long rate_best_fit = -ENOENT;
        int i;
        highest = 0;
@@ -146,7 +146,7 @@ long clk_rate_table_round(struct clk *clk,
        };
        if (clk->nr_freqs < 1)
-                return 0;
+                return -ENOSYS;
        return clk_rate_round_helper(&table_round);
 }
@@ -541,6 +541,98 @@ long clk_round_rate(struct clk *clk, unsigned long rate)
 }
 EXPORT_SYMBOL_GPL(clk_round_rate);
+long clk_round_parent(struct clk *clk, unsigned long target,
+                      unsigned long *best_freq, unsigned long *parent_freq,
+                      unsigned int div_min, unsigned int div_max)
+{
+        struct cpufreq_frequency_table *freq, *best = NULL;
+        unsigned long error = ULONG_MAX, freq_high, freq_low, div;
+        struct clk *parent = clk_get_parent(clk);
+        if (!parent) {
+                *parent_freq = 0;
+                *best_freq = clk_round_rate(clk, target);
+                return abs(target - *best_freq);
+        }
+        for (freq = parent->freq_table; freq->frequency != CPUFREQ_TABLE_END;
+             freq++) {
+                if (freq->frequency == CPUFREQ_ENTRY_INVALID)
+                        continue;
+                if (unlikely(freq->frequency / target <= div_min - 1)) {
+                        unsigned long freq_max;
+                        freq_max = (freq->frequency + div_min / 2) / div_min;
+                        if (error > target - freq_max) {
+                                error = target - freq_max;
+                                best = freq;
+                                if (best_freq)
+                                        *best_freq = freq_max;
+                        }
+                        pr_debug("too low freq %lu, error %lu\n", freq->frequency,
+                                 target - freq_max);
+                        if (!error)
+                                break;
+                        continue;
+                }
+                if (unlikely(freq->frequency / target >= div_max)) {
+                        unsigned long freq_min;
+                        freq_min = (freq->frequency + div_max / 2) / div_max;
+                        if (error > freq_min - target) {
+                                error = freq_min - target;
+                                best = freq;
+                                if (best_freq)
+                                        *best_freq = freq_min;
+                        }
+                        pr_debug("too high freq %lu, error %lu\n", freq->frequency,
+                                 freq_min - target);
+                        if (!error)
+                                break;
+                        continue;
+                }
+                div = freq->frequency / target;
+                freq_high = freq->frequency / div;
+                freq_low = freq->frequency / (div + 1);
+                if (freq_high - target < error) {
+                        error = freq_high - target;
+                        best = freq;
+                        if (best_freq)
+                                *best_freq = freq_high;
+                }
+                if (target - freq_low < error) {
+                        error = target - freq_low;
+                        best = freq;
+                        if (best_freq)
+                                *best_freq = freq_low;
+                }
+                pr_debug("%u / %lu = %lu, / %lu = %lu, best %lu, parent %u\n",
+                         freq->frequency, div, freq_high, div + 1, freq_low,
+                         *best_freq, best->frequency);
+                if (!error)
+                        break;
+        }
+        if (parent_freq)
+                *parent_freq = best->frequency;
+        return error;
+}
+EXPORT_SYMBOL_GPL(clk_round_parent);
 #ifdef CONFIG_PM
 static int clks_sysdev_suspend(struct sys_device *dev, pm_message_t state)
 {
diff --git a/drivers/sh/intc/core.c b/drivers/sh/intc/core.c
index 873a99ff8f64..e5e9e6735f7d 100644
--- a/drivers/sh/intc/core.c
+++ b/drivers/sh/intc/core.c
@@ -79,7 +79,7 @@ static void __init intc_register_irq(struct intc_desc *desc,
         * Register the IRQ position with the global IRQ map, then insert
         * it in to the radix tree.
         */
-        irq_reserve_irqs(irq, 1);
+        irq_reserve_irq(irq);
        raw_spin_lock_irqsave(&intc_big_lock, flags);
        radix_tree_insert(&d->tree, enum_id, intc_irq_xlate_get(irq));
diff --git a/drivers/sh/intc/dynamic.c b/drivers/sh/intc/dynamic.c
index 4187cce20ffd..a3677c9dfe36 100644
--- a/drivers/sh/intc/dynamic.c
+++ b/drivers/sh/intc/dynamic.c
@@ -60,5 +60,5 @@ void reserve_intc_vectors(struct intc_vect *vectors, unsigned int nr_vecs)
        int i;
        for (i = 0; i < nr_vecs; i++)
-                irq_reserve_irqs(evt2irq(vectors[i].vect), 1);
+                irq_reserve_irq(evt2irq(vectors[i].vect));
 }
diff --git a/drivers/staging/ath6kl/hif/sdio/linux_sdio/src/hif_scatter.c b/drivers/staging/ath6kl/hif/sdio/linux_sdio/src/hif_scatter.c
index 22c6c6659f5b..ee8b47746a15 100644
--- a/drivers/staging/ath6kl/hif/sdio/linux_sdio/src/hif_scatter.c
+++ b/drivers/staging/ath6kl/hif/sdio/linux_sdio/src/hif_scatter.c
@@ -285,9 +285,9 @@ A_STATUS SetupHIFScatterSupport(HIF_DEVICE *device, HIF_DEVICE_SCATTER_SUPPORT_I
    do {
        
            /* check if host supports scatter requests and it meets our requirements */
-        if (device->func->card->host->max_hw_segs < MAX_SCATTER_ENTRIES_PER_REQ) {
+        if (device->func->card->host->max_segs < MAX_SCATTER_ENTRIES_PER_REQ) {
            AR_DEBUG_PRINTF(ATH_DEBUG_ERR,("HIF-SCATTER : host only supports scatter of : %d entries, need: %d \n",
-                    device->func->card->host->max_hw_segs, MAX_SCATTER_ENTRIES_PER_REQ));
+                    device->func->card->host->max_segs, MAX_SCATTER_ENTRIES_PER_REQ));
            status = A_ENOTSUP;
            break;    
        }
diff --git a/drivers/staging/ath6kl/os/linux/include/athendpack_linux.h b/drivers/staging/ath6kl/os/linux/include/athendpack_linux.h
deleted file mode 100644
index e69de29bb2d1..000000000000
--- a/drivers/staging/ath6kl/os/linux/include/athendpack_linux.h
+++ /dev/null
diff --git a/drivers/staging/ath6kl/os/linux/include/athstartpack_linux.h b/drivers/staging/ath6kl/os/linux/include/athstartpack_linux.h
deleted file mode 100644
index e69de29bb2d1..000000000000
--- a/drivers/staging/ath6kl/os/linux/include/athstartpack_linux.h
+++ /dev/null
diff --git a/drivers/staging/solo6x10/solo6010-v4l2-enc.c b/drivers/staging/solo6x10/solo6010-v4l2-enc.c
index bbf3d9c4abb0..097e82bc7a63 100644
--- a/drivers/staging/solo6x10/solo6010-v4l2-enc.c
+++ b/drivers/staging/solo6x10/solo6010-v4l2-enc.c
@@ -766,7 +766,7 @@ static int solo_enc_open(struct file *file)
                                    &solo_enc->lock,
                                    V4L2_BUF_TYPE_VIDEO_CAPTURE,
                                    V4L2_FIELD_INTERLACED,
-                                    sizeof(struct videobuf_buffer), fh);
+                                    sizeof(struct videobuf_buffer), fh, NULL);
        spin_unlock(&solo_enc->lock);
diff --git a/drivers/staging/solo6x10/solo6010-v4l2.c b/drivers/staging/solo6x10/solo6010-v4l2.c
index 9731fa02b5e8..6ffd21de837d 100644
--- a/drivers/staging/solo6x10/solo6010-v4l2.c
+++ b/drivers/staging/solo6x10/solo6010-v4l2.c
@@ -437,7 +437,7 @@ static int solo_v4l2_open(struct file *file)
                                    &solo_dev->pdev->dev, &fh->slock,
                                    V4L2_BUF_TYPE_VIDEO_CAPTURE,
                                    SOLO_DISP_PIX_FIELD,
-                                    sizeof(struct videobuf_buffer), fh);
+                                    sizeof(struct videobuf_buffer), fh, NULL);
        return 0;
 }
diff --git a/drivers/tty/Makefile b/drivers/tty/Makefile
new file mode 100644
index 000000000000..c43ef48b1a0f
--- /dev/null
+++ b/drivers/tty/Makefile
@@ -0,0 +1,11 @@
+obj-y                           += tty_io.o n_tty.o tty_ioctl.o tty_ldisc.o \
+                                   tty_buffer.o tty_port.o tty_mutex.o
+obj-$(CONFIG_LEGACY_PTYS)       += pty.o
+obj-$(CONFIG_UNIX98_PTYS)       += pty.o
+obj-$(CONFIG_AUDIT)             += tty_audit.o
+obj-$(CONFIG_MAGIC_SYSRQ)       += sysrq.o
+obj-$(CONFIG_N_HDLC)            += n_hdlc.o
+obj-$(CONFIG_N_GSM)             += n_gsm.o
+obj-$(CONFIG_R3964)             += n_r3964.o
+obj-y                           += vt/
diff --git a/drivers/char/n_gsm.c b/drivers/tty/n_gsm.c
index 04ef3ef0a422..04ef3ef0a422 100644
--- a/drivers/char/n_gsm.c
+++ b/drivers/tty/n_gsm.c
diff --git a/drivers/char/n_hdlc.c b/drivers/tty/n_hdlc.c
index 47d32281032c..47d32281032c 100644
--- a/drivers/char/n_hdlc.c
+++ b/drivers/tty/n_hdlc.c
diff --git a/drivers/char/n_r3964.c b/drivers/tty/n_r3964.c
index 88dda0c45ee0..88dda0c45ee0 100644
--- a/drivers/char/n_r3964.c
+++ b/drivers/tty/n_r3964.c
diff --git a/drivers/char/n_tty.c b/drivers/tty/n_tty.c
index 428f4fe0b5f7..428f4fe0b5f7 100644
--- a/drivers/char/n_tty.c
+++ b/drivers/tty/n_tty.c
diff --git a/drivers/char/pty.c b/drivers/tty/pty.c
index 923a48585501..923a48585501 100644
--- a/drivers/char/pty.c
+++ b/drivers/tty/pty.c
diff --git a/drivers/char/sysrq.c b/drivers/tty/sysrq.c
index eaa5d3efa79d..eaa5d3efa79d 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/tty/sysrq.c
diff --git a/drivers/char/tty_audit.c b/drivers/tty/tty_audit.c
index f64582b0f623..f64582b0f623 100644
--- a/drivers/char/tty_audit.c
+++ b/drivers/tty/tty_audit.c
diff --git a/drivers/char/tty_buffer.c b/drivers/tty/tty_buffer.c
index cc1e9850d655..cc1e9850d655 100644
--- a/drivers/char/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
diff --git a/drivers/char/tty_io.c b/drivers/tty/tty_io.c
index c05c5af5aa04..c05c5af5aa04 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/tty/tty_io.c
diff --git a/drivers/char/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index 0c1889971459..0c1889971459 100644
--- a/drivers/char/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
diff --git a/drivers/char/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 412f9775d19c..412f9775d19c 100644
--- a/drivers/char/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
diff --git a/drivers/char/tty_mutex.c b/drivers/tty/tty_mutex.c
index 133697540c73..133697540c73 100644
--- a/drivers/char/tty_mutex.c
+++ b/drivers/tty/tty_mutex.c
diff --git a/drivers/char/tty_port.c b/drivers/tty/tty_port.c
index 33d37d230f8f..33d37d230f8f 100644
--- a/drivers/char/tty_port.c
+++ b/drivers/tty/tty_port.c
diff --git a/drivers/char/.gitignore b/drivers/tty/vt/.gitignore
index 83683a2d8e6a..83683a2d8e6a 100644
--- a/drivers/char/.gitignore
+++ b/drivers/tty/vt/.gitignore
diff --git a/drivers/tty/vt/Makefile b/drivers/tty/vt/Makefile
new file mode 100644
index 000000000000..14a51c9960df
--- /dev/null
+++ b/drivers/tty/vt/Makefile
@@ -0,0 +1,34 @@
+#
+# This file contains the font map for the default (hardware) font
+#
+FONTMAPFILE = cp437.uni
+obj-$(CONFIG_VT)                        += vt_ioctl.o vc_screen.o \
+                                           selection.o keyboard.o
+obj-$(CONFIG_CONSOLE_TRANSLATIONS)      += consolemap.o consolemap_deftbl.o
+obj-$(CONFIG_HW_CONSOLE)                += vt.o defkeymap.o
+# Files generated that shall be removed upon make clean
+clean-files := consolemap_deftbl.c defkeymap.c
+quiet_cmd_conmk = CONMK   $@
+      cmd_conmk = scripts/conmakehash $< > $@
+$(obj)/consolemap_deftbl.c: $(src)/$(FONTMAPFILE)
+        $(call cmd,conmk)
+$(obj)/defkeymap.o:  $(obj)/defkeymap.c
+# Uncomment if you're changing the keymap and have an appropriate
+# loadkeys version for the map. By default, we'll use the shipped
+# versions.
+# GENERATE_KEYMAP := 1
+ifdef GENERATE_KEYMAP
+$(obj)/defkeymap.c: $(obj)/%.c: $(src)/%.map
+        loadkeys --mktable $< > $@.tmp
+        sed -e 's/^static *//' $@.tmp > $@
+        rm $@.tmp
+endif
diff --git a/drivers/char/consolemap.c b/drivers/tty/vt/consolemap.c
index 45d3e80156d4..45d3e80156d4 100644
--- a/drivers/char/consolemap.c
+++ b/drivers/tty/vt/consolemap.c
diff --git a/drivers/char/cp437.uni b/drivers/tty/vt/cp437.uni
index bc6163484f62..bc6163484f62 100644
--- a/drivers/char/cp437.uni
+++ b/drivers/tty/vt/cp437.uni
diff --git a/drivers/char/defkeymap.c_shipped b/drivers/tty/vt/defkeymap.c_shipped
index d2208dfe3f67..d2208dfe3f67 100644
--- a/drivers/char/defkeymap.c_shipped
+++ b/drivers/tty/vt/defkeymap.c_shipped
diff --git a/drivers/char/defkeymap.map b/drivers/tty/vt/defkeymap.map
index 50b30cace261..50b30cace261 100644
--- a/drivers/char/defkeymap.map
+++ b/drivers/tty/vt/defkeymap.map
diff --git a/drivers/char/keyboard.c b/drivers/tty/vt/keyboard.c
index e95d7876ca6b..e95d7876ca6b 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
diff --git a/drivers/char/selection.c b/drivers/tty/vt/selection.c
index ebae344ce910..ebae344ce910 100644
--- a/drivers/char/selection.c
+++ b/drivers/tty/vt/selection.c
diff --git a/drivers/char/vc_screen.c b/drivers/tty/vt/vc_screen.c
index 273ab44cc91d..273ab44cc91d 100644
--- a/drivers/char/vc_screen.c
+++ b/drivers/tty/vt/vc_screen.c
diff --git a/drivers/char/vt.c b/drivers/tty/vt/vt.c
index a8ec48ed14d9..a8ec48ed14d9 100644
--- a/drivers/char/vt.c
+++ b/drivers/tty/vt/vt.c
diff --git a/drivers/char/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 6b68a0fb4611..6b68a0fb4611 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
diff --git a/drivers/video/backlight/adp8860_bl.c b/drivers/video/backlight/adp8860_bl.c
index 3ec24609151e..734c650a47c4 100644
--- a/drivers/video/backlight/adp8860_bl.c
+++ b/drivers/video/backlight/adp8860_bl.c
@@ -502,8 +502,10 @@ static ssize_t adp8860_bl_l1_daylight_max_store(struct device *dev,
                struct device_attribute *attr, const char *buf, size_t count)
 {
        struct adp8860_bl *data = dev_get_drvdata(dev);
+        int ret = strict_strtoul(buf, 10, &data->cached_daylight_max);
+        if (ret)
+                return ret;
-        strict_strtoul(buf, 10, &data->cached_daylight_max);
        return adp8860_store(dev, buf, count, ADP8860_BLMX1);
 }
 static DEVICE_ATTR(l1_daylight_max, 0664, adp8860_bl_l1_daylight_max_show,
@@ -614,7 +616,7 @@ static ssize_t adp8860_bl_ambient_light_zone_store(struct device *dev,
        if (val == 0) {
                /* Enable automatic ambient light sensing */
                adp8860_set_bits(data->client, ADP8860_MDCR, CMP_AUTOEN);
-        } else if ((val > 0) && (val < 6)) {
+        } else if ((val > 0) && (val <= 3)) {
                /* Disable automatic ambient light sensing */
                adp8860_clr_bits(data->client, ADP8860_MDCR, CMP_AUTOEN);
@@ -622,7 +624,7 @@ static ssize_t adp8860_bl_ambient_light_zone_store(struct device *dev,
                mutex_lock(&data->lock);
                adp8860_read(data->client, ADP8860_CFGR, &reg_val);
                reg_val &= ~(CFGR_BLV_MASK << CFGR_BLV_SHIFT);
-                reg_val |= val << CFGR_BLV_SHIFT;
+                reg_val |= (val - 1) << CFGR_BLV_SHIFT;
                adp8860_write(data->client, ADP8860_CFGR, reg_val);
                mutex_unlock(&data->lock);
        }
diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c
index 9093ef0fa869..c67801e57aaf 100644
--- a/drivers/video/backlight/l4f00242t03.c
+++ b/drivers/video/backlight/l4f00242t03.c
@@ -78,7 +78,7 @@ static int l4f00242t03_lcd_power_set(struct lcd_device *ld, int power)
        const u16 slpin = 0x10;
        const u16 disoff = 0x28;
-        if (power) {
+        if (power <= FB_BLANK_NORMAL) {
                if (priv->lcd_on)
                        return 0;
diff --git a/drivers/video/backlight/lms283gf05.c b/drivers/video/backlight/lms283gf05.c
index abc43a0eb97d..5d3cf33953ac 100644
--- a/drivers/video/backlight/lms283gf05.c
+++ b/drivers/video/backlight/lms283gf05.c
@@ -129,7 +129,7 @@ static int lms283gf05_power_set(struct lcd_device *ld, int power)
        struct spi_device *spi = st->spi;
        struct lms283gf05_pdata *pdata = spi->dev.platform_data;
-        if (power) {
+        if (power <= FB_BLANK_NORMAL) {
                if (pdata)
                        lms283gf05_reset(pdata->reset_gpio,
                                        pdata->reset_inverted);
diff --git a/drivers/video/backlight/mbp_nvidia_bl.c b/drivers/video/backlight/mbp_nvidia_bl.c
index 9fb533f6373e..1485f7345f49 100644
--- a/drivers/video/backlight/mbp_nvidia_bl.c
+++ b/drivers/video/backlight/mbp_nvidia_bl.c
@@ -335,6 +335,24 @@ static const struct dmi_system_id __initdata mbp_device_table[] = {
                },
                .driver_data    = (void *)&nvidia_chipset_data,
        },
+        {
+                .callback       = mbp_dmi_match,
+                .ident          = "MacBookAir 3,1",
+                .matches        = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir3,1"),
+                },
+                .driver_data    = (void *)&nvidia_chipset_data,
+        },
+        {
+                .callback       = mbp_dmi_match,
+                .ident          = "MacBookAir 3,2",
+                .matches        = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir3,2"),
+                },
+                .driver_data    = (void *)&nvidia_chipset_data,
+        },
        { }
 };
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 550443518891..21866ec69656 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -25,6 +25,7 @@ struct pwm_bl_data {
        struct pwm_device       *pwm;
        struct device           *dev;
        unsigned int            period;
+        unsigned int            lth_brightness;
        int                     (*notify)(struct device *,
                                          int brightness);
 };
@@ -48,7 +49,9 @@ static int pwm_backlight_update_status(struct backlight_device *bl)
                pwm_config(pb->pwm, 0, pb->period);
                pwm_disable(pb->pwm);
        } else {
-                pwm_config(pb->pwm, brightness * pb->period / max, pb->period);
+                brightness = pb->lth_brightness +
+                        (brightness * (pb->period - pb->lth_brightness) / max);
+                pwm_config(pb->pwm, brightness, pb->period);
                pwm_enable(pb->pwm);
        }
        return 0;
@@ -92,6 +95,8 @@ static int pwm_backlight_probe(struct platform_device *pdev)
        pb->period = data->pwm_period_ns;
        pb->notify = data->notify;
+        pb->lth_brightness = data->lth_brightness *
+                (data->pwm_period_ns / data->max_brightness);
        pb->dev = &pdev->dev;
        pb->pwm = pwm_request(data->pwm_id, "backlight");
diff --git a/drivers/video/backlight/s6e63m0.c b/drivers/video/backlight/s6e63m0.c
index a3128c9cb7ad..5927db0da999 100644
--- a/drivers/video/backlight/s6e63m0.c
+++ b/drivers/video/backlight/s6e63m0.c
@@ -729,10 +729,10 @@ static ssize_t s6e63m0_sysfs_show_gamma_table(struct device *dev,
        return strlen(buf);
 }
-static DEVICE_ATTR(gamma_table, 0644,
+static DEVICE_ATTR(gamma_table, 0444,
                s6e63m0_sysfs_show_gamma_table, NULL);
-static int __init s6e63m0_probe(struct spi_device *spi)
+static int __devinit s6e63m0_probe(struct spi_device *spi)
 {
        int ret = 0;
        struct s6e63m0 *lcd = NULL;
@@ -829,6 +829,9 @@ static int __devexit s6e63m0_remove(struct spi_device *spi)
        struct s6e63m0 *lcd = dev_get_drvdata(&spi->dev);
        s6e63m0_power(lcd, FB_BLANK_POWERDOWN);
+        device_remove_file(&spi->dev, &dev_attr_gamma_table);
+        device_remove_file(&spi->dev, &dev_attr_gamma_mode);
+        backlight_device_unregister(lcd->bd);
        lcd_device_unregister(lcd->ld);
        kfree(lcd);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 39869c3c3efb..ef3a55bf86b6 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -2177,7 +2177,6 @@ cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
        setattr_copy(inode, attrs);
        mark_inode_dirty(inode);
-        return 0;
 cifs_setattr_exit:
        kfree(full_path);
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 2fa22f20cfc5..0c98672d0122 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -38,10 +38,10 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
        struct cifs_sb_info *cifs_sb;
 #ifdef CONFIG_CIFS_POSIX
        struct cifsFileInfo *pSMBFile = filep->private_data;
-        struct cifsTconInfo *tcon = tlink_tcon(pSMBFile->tlink);
+        struct cifsTconInfo *tcon;
        __u64   ExtAttrBits = 0;
        __u64   ExtAttrMask = 0;
-        __u64   caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
+        __u64   caps;
 #endif /* CONFIG_CIFS_POSIX */
        xid = GetXid();
@@ -62,6 +62,10 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
                        break;
 #ifdef CONFIG_CIFS_POSIX
                case FS_IOC_GETFLAGS:
+                        if (pSMBFile == NULL)
+                                break;
+                        tcon = tlink_tcon(pSMBFile->tlink);
+                        caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
                        if (CIFS_UNIX_EXTATTR_CAP & caps) {
                                rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid,
                                        &ExtAttrBits, &ExtAttrMask);
@@ -73,6 +77,10 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
                        break;
                case FS_IOC_SETFLAGS:
+                        if (pSMBFile == NULL)
+                                break;
+                        tcon = tlink_tcon(pSMBFile->tlink);
+                        caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
                        if (CIFS_UNIX_EXTATTR_CAP & caps) {
                                if (get_user(ExtAttrBits, (int __user *)arg)) {
                                        rc = -EFAULT;
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 8b5dd6369f82..6a5edea2d70b 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -177,7 +177,7 @@ struct mpage_da_data {
 struct ext4_io_page {
        struct page     *p_page;
-        int             p_count;
+        atomic_t        p_count;
 };
 #define MAX_IO_PAGES 128
@@ -858,6 +858,7 @@ struct ext4_inode_info {
        spinlock_t i_completed_io_lock;
        /* current io_end structure for async DIO write*/
        ext4_io_end_t *cur_aio_dio;
+        atomic_t i_ioend_count; /* Number of outstanding io_end structs */
        /*
         * Transactions that contain inode's metadata needed to complete
@@ -2060,6 +2061,7 @@ extern int ext4_move_extents(struct file *o_filp, struct file *d_filp,
 /* page-io.c */
 extern int __init ext4_init_pageio(void);
 extern void ext4_exit_pageio(void);
+extern void ext4_ioend_wait(struct inode *);
 extern void ext4_free_io_end(ext4_io_end_t *io);
 extern ext4_io_end_t *ext4_init_io_end(struct inode *inode, gfp_t flags);
 extern int ext4_end_io_nolock(ext4_io_end_t *io);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 4d78342f3bf0..bdbe69902207 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -53,6 +53,7 @@
 static inline int ext4_begin_ordered_truncate(struct inode *inode,
                                              loff_t new_size)
 {
+        trace_ext4_begin_ordered_truncate(inode, new_size);
        return jbd2_journal_begin_ordered_truncate(
                                        EXT4_SB(inode->i_sb)->s_journal,
                                        &EXT4_I(inode)->jinode,
@@ -178,6 +179,7 @@ void ext4_evict_inode(struct inode *inode)
        handle_t *handle;
        int err;
+        trace_ext4_evict_inode(inode);
        if (inode->i_nlink) {
                truncate_inode_pages(&inode->i_data, 0);
                goto no_delete;
@@ -5647,6 +5649,7 @@ int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode)
        int err, ret;
        might_sleep();
+        trace_ext4_mark_inode_dirty(inode, _RET_IP_);
        err = ext4_reserve_inode_write(handle, inode, &iloc);
        if (ext4_handle_valid(handle) &&
            EXT4_I(inode)->i_extra_isize < sbi->s_want_extra_isize &&
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index c58eba34724a..5b4d4e3a4d58 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4640,8 +4640,6 @@ do_more:
                 * with group lock held. generate_buddy look at
                 * them with group lock_held
                 */
-                if (test_opt(sb, DISCARD))
-                        ext4_issue_discard(sb, block_group, bit, count);
                ext4_lock_group(sb, block_group);
                mb_clear_bits(bitmap_bh->b_data, bit, count);
                mb_free_blocks(inode, &e4b, bit, count);
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 46a7d6a9d976..7f5451cd1d38 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -32,8 +32,14 @@
 static struct kmem_cache *io_page_cachep, *io_end_cachep;
+#define WQ_HASH_SZ              37
+#define to_ioend_wq(v)  (&ioend_wq[((unsigned long)v) % WQ_HASH_SZ])
+static wait_queue_head_t ioend_wq[WQ_HASH_SZ];
 int __init ext4_init_pageio(void)
 {
+        int i;
        io_page_cachep = KMEM_CACHE(ext4_io_page, SLAB_RECLAIM_ACCOUNT);
        if (io_page_cachep == NULL)
                return -ENOMEM;
@@ -42,6 +48,8 @@ int __init ext4_init_pageio(void)
                kmem_cache_destroy(io_page_cachep);
                return -ENOMEM;
        }
+        for (i = 0; i < WQ_HASH_SZ; i++)
+                init_waitqueue_head(&ioend_wq[i]);
        return 0;
 }
@@ -52,24 +60,37 @@ void ext4_exit_pageio(void)
        kmem_cache_destroy(io_page_cachep);
 }
+void ext4_ioend_wait(struct inode *inode)
+{
+        wait_queue_head_t *wq = to_ioend_wq(inode);
+        wait_event(*wq, (atomic_read(&EXT4_I(inode)->i_ioend_count) == 0));
+}
+static void put_io_page(struct ext4_io_page *io_page)
+{
+        if (atomic_dec_and_test(&io_page->p_count)) {
+                end_page_writeback(io_page->p_page);
+                put_page(io_page->p_page);
+                kmem_cache_free(io_page_cachep, io_page);
+        }
+}
 void ext4_free_io_end(ext4_io_end_t *io)
 {
        int i;
+        wait_queue_head_t *wq;
        BUG_ON(!io);
        if (io->page)
                put_page(io->page);
-        for (i = 0; i < io->num_io_pages; i++) {
+        for (i = 0; i < io->num_io_pages; i++)
-                if (--io->pages[i]->p_count == 0) {
+                put_io_page(io->pages[i]);
-                        struct page *page = io->pages[i]->p_page;
-                        end_page_writeback(page);
-                        put_page(page);
-                        kmem_cache_free(io_page_cachep, io->pages[i]);
-                }
-        }
        io->num_io_pages = 0;
-        iput(io->inode);
+        wq = to_ioend_wq(io->inode);
+        if (atomic_dec_and_test(&EXT4_I(io->inode)->i_ioend_count) &&
+            waitqueue_active(wq))
+                wake_up_all(wq);
        kmem_cache_free(io_end_cachep, io);
 }
@@ -142,8 +163,8 @@ ext4_io_end_t *ext4_init_io_end(struct inode *inode, gfp_t flags)
        io = kmem_cache_alloc(io_end_cachep, flags);
        if (io) {
                memset(io, 0, sizeof(*io));
-                io->inode = igrab(inode);
+                atomic_inc(&EXT4_I(inode)->i_ioend_count);
-                BUG_ON(!io->inode);
+                io->inode = inode;
                INIT_WORK(&io->work, ext4_end_io_work);
                INIT_LIST_HEAD(&io->list);
        }
@@ -171,35 +192,15 @@ static void ext4_end_bio(struct bio *bio, int error)
        struct workqueue_struct *wq;
        struct inode *inode;
        unsigned long flags;
-        ext4_fsblk_t err_block;
        int i;
        BUG_ON(!io_end);
-        inode = io_end->inode;
        bio->bi_private = NULL;
        bio->bi_end_io = NULL;
        if (test_bit(BIO_UPTODATE, &bio->bi_flags))
                error = 0;
-        err_block = bio->bi_sector >> (inode->i_blkbits - 9);
        bio_put(bio);
-        if (!(inode->i_sb->s_flags & MS_ACTIVE)) {
-                pr_err("sb umounted, discard end_io request for inode %lu\n",
-                        io_end->inode->i_ino);
-                ext4_free_io_end(io_end);
-                return;
-        }
-        if (error) {
-                io_end->flag |= EXT4_IO_END_ERROR;
-                ext4_warning(inode->i_sb, "I/O error writing to inode %lu "
-                             "(offset %llu size %ld starting block %llu)",
-                             inode->i_ino,
-                             (unsigned long long) io_end->offset,
-                             (long) io_end->size,
-                             (unsigned long long) err_block);
-        }
        for (i = 0; i < io_end->num_io_pages; i++) {
                struct page *page = io_end->pages[i]->p_page;
                struct buffer_head *bh, *head;
@@ -236,13 +237,7 @@ static void ext4_end_bio(struct bio *bio, int error)
                        } while (bh != head);
                }
-                if (--io_end->pages[i]->p_count == 0) {
+                put_io_page(io_end->pages[i]);
-                        struct page *page = io_end->pages[i]->p_page;
-                        end_page_writeback(page);
-                        put_page(page);
-                        kmem_cache_free(io_page_cachep, io_end->pages[i]);
-                }
                /*
                 * If this is a partial write which happened to make
@@ -254,8 +249,19 @@ static void ext4_end_bio(struct bio *bio, int error)
                if (!partial_write)
                        SetPageUptodate(page);
        }
        io_end->num_io_pages = 0;
+        inode = io_end->inode;
+        if (error) {
+                io_end->flag |= EXT4_IO_END_ERROR;
+                ext4_warning(inode->i_sb, "I/O error writing to inode %lu "
+                             "(offset %llu size %ld starting block %llu)",
+                             inode->i_ino,
+                             (unsigned long long) io_end->offset,
+                             (long) io_end->size,
+                             (unsigned long long)
+                             bio->bi_sector >> (inode->i_blkbits - 9));
+        }
        /* Add the io_end to per-inode completed io list*/
        spin_lock_irqsave(&EXT4_I(inode)->i_completed_io_lock, flags);
@@ -305,7 +311,6 @@ static int io_submit_init(struct ext4_io_submit *io,
        bio->bi_private = io->io_end = io_end;
        bio->bi_end_io = ext4_end_bio;
-        io_end->inode = inode;
        io_end->offset = (page->index << PAGE_CACHE_SHIFT) + bh_offset(bh);
        io->io_bio = bio;
@@ -360,7 +365,7 @@ submit_and_retry:
        if ((io_end->num_io_pages == 0) ||
            (io_end->pages[io_end->num_io_pages-1] != io_page)) {
                io_end->pages[io_end->num_io_pages++] = io_page;
-                io_page->p_count++;
+                atomic_inc(&io_page->p_count);
        }
        return 0;
 }
@@ -389,7 +394,7 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
                return -ENOMEM;
        }
        io_page->p_page = page;
-        io_page->p_count = 0;
+        atomic_set(&io_page->p_count, 1);
        get_page(page);
        for (bh = head = page_buffers(page), block_start = 0;
@@ -421,10 +426,6 @@ int ext4_bio_write_page(struct ext4_io_submit *io,
         * PageWriteback bit from the page to prevent the system from
         * wedging later on.
         */
-        if (io_page->p_count == 0) {
+        put_io_page(io_page);
-                put_page(page);
-                end_page_writeback(page);
-                kmem_cache_free(io_page_cachep, io_page);
-        }
        return ret;
 }
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 40131b777af6..61182fe6254e 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -828,12 +828,22 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
        ei->cur_aio_dio = NULL;
        ei->i_sync_tid = 0;
        ei->i_datasync_tid = 0;
+        atomic_set(&ei->i_ioend_count, 0);
        return &ei->vfs_inode;
 }
+static int ext4_drop_inode(struct inode *inode)
+{
+        int drop = generic_drop_inode(inode);
+        trace_ext4_drop_inode(inode, drop);
+        return drop;
+}
 static void ext4_destroy_inode(struct inode *inode)
 {
+        ext4_ioend_wait(inode);
        if (!list_empty(&(EXT4_I(inode)->i_orphan))) {
                ext4_msg(inode->i_sb, KERN_ERR,
                         "Inode %lu (%p): orphan list check failed!",
@@ -1173,6 +1183,7 @@ static const struct super_operations ext4_sops = {
        .destroy_inode  = ext4_destroy_inode,
        .write_inode    = ext4_write_inode,
        .dirty_inode    = ext4_dirty_inode,
+        .drop_inode     = ext4_drop_inode,
        .evict_inode    = ext4_evict_inode,
        .put_super      = ext4_put_super,
        .sync_fs        = ext4_sync_fs,
@@ -1194,6 +1205,7 @@ static const struct super_operations ext4_nojournal_sops = {
        .destroy_inode  = ext4_destroy_inode,
        .write_inode    = ext4_write_inode,
        .dirty_inode    = ext4_dirty_inode,
+        .drop_inode     = ext4_drop_inode,
        .evict_inode    = ext4_evict_inode,
        .write_super    = ext4_write_super,
        .put_super      = ext4_put_super,
@@ -2699,7 +2711,6 @@ static int ext4_lazyinit_thread(void *arg)
        struct ext4_li_request *elr;
        unsigned long next_wakeup;
        DEFINE_WAIT(wait);
-        int ret;
        BUG_ON(NULL == eli);
@@ -2723,13 +2734,12 @@ cont_thread:
                        elr = list_entry(pos, struct ext4_li_request,
                                         lr_request);
-                        if (time_after_eq(jiffies, elr->lr_next_sched))
+                        if (time_after_eq(jiffies, elr->lr_next_sched)) {
-                                ret = ext4_run_li_request(elr);
+                                if (ext4_run_li_request(elr) != 0) {
+                                        /* error, remove the lazy_init job */
-                        if (ret) {
+                                        ext4_remove_li_request(elr);
-                                ret = 0;
+                                        continue;
-                                ext4_remove_li_request(elr);
+                                }
-                                continue;
                        }
                        if (time_before(elr->lr_next_sched, next_wakeup))
@@ -2740,7 +2750,8 @@ cont_thread:
                if (freezing(current))
                        refrigerator();
-                if (time_after_eq(jiffies, next_wakeup)) {
+                if ((time_after_eq(jiffies, next_wakeup)) ||
+                    (MAX_JIFFY_OFFSET == next_wakeup)) {
                        cond_resched();
                        continue;
                }
@@ -3348,6 +3359,24 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
        get_random_bytes(&sbi->s_next_generation, sizeof(u32));
        spin_lock_init(&sbi->s_next_gen_lock);
+        err = percpu_counter_init(&sbi->s_freeblocks_counter,
+                        ext4_count_free_blocks(sb));
+        if (!err) {
+                err = percpu_counter_init(&sbi->s_freeinodes_counter,
+                                ext4_count_free_inodes(sb));
+        }
+        if (!err) {
+                err = percpu_counter_init(&sbi->s_dirs_counter,
+                                ext4_count_dirs(sb));
+        }
+        if (!err) {
+                err = percpu_counter_init(&sbi->s_dirtyblocks_counter, 0);
+        }
+        if (err) {
+                ext4_msg(sb, KERN_ERR, "insufficient memory");
+                goto failed_mount3;
+        }
        sbi->s_stripe = ext4_get_stripe_size(sbi);
        sbi->s_max_writeback_mb_bump = 128;
@@ -3446,22 +3475,19 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
        }
        set_task_ioprio(sbi->s_journal->j_task, journal_ioprio);
-no_journal:
+        /*
-        err = percpu_counter_init(&sbi->s_freeblocks_counter,
+         * The journal may have updated the bg summary counts, so we
-                                  ext4_count_free_blocks(sb));
+         * need to update the global counters.
-        if (!err)
+         */
-                err = percpu_counter_init(&sbi->s_freeinodes_counter,
+        percpu_counter_set(&sbi->s_freeblocks_counter,
-                                          ext4_count_free_inodes(sb));
+                           ext4_count_free_blocks(sb));
-        if (!err)
+        percpu_counter_set(&sbi->s_freeinodes_counter,
-                err = percpu_counter_init(&sbi->s_dirs_counter,
+                           ext4_count_free_inodes(sb));
-                                          ext4_count_dirs(sb));
+        percpu_counter_set(&sbi->s_dirs_counter,
-        if (!err)
+                           ext4_count_dirs(sb));
-                err = percpu_counter_init(&sbi->s_dirtyblocks_counter, 0);
+        percpu_counter_set(&sbi->s_dirtyblocks_counter, 0);
-        if (err) {
-                ext4_msg(sb, KERN_ERR, "insufficient memory");
-                goto failed_mount_wq;
-        }
+no_journal:
        EXT4_SB(sb)->dio_unwritten_wq = create_workqueue("ext4-dio-unwritten");
        if (!EXT4_SB(sb)->dio_unwritten_wq) {
                printk(KERN_ERR "EXT4-fs: failed to create DIO workqueue\n");
@@ -3611,10 +3637,6 @@ failed_mount_wq:
                jbd2_journal_destroy(sbi->s_journal);
                sbi->s_journal = NULL;
        }
-        percpu_counter_destroy(&sbi->s_freeblocks_counter);
-        percpu_counter_destroy(&sbi->s_freeinodes_counter);
-        percpu_counter_destroy(&sbi->s_dirs_counter);
-        percpu_counter_destroy(&sbi->s_dirtyblocks_counter);
 failed_mount3:
        if (sbi->s_flex_groups) {
                if (is_vmalloc_addr(sbi->s_flex_groups))
@@ -3622,6 +3644,10 @@ failed_mount3:
                else
                        kfree(sbi->s_flex_groups);
        }
+        percpu_counter_destroy(&sbi->s_freeblocks_counter);
+        percpu_counter_destroy(&sbi->s_freeinodes_counter);
+        percpu_counter_destroy(&sbi->s_dirs_counter);
+        percpu_counter_destroy(&sbi->s_dirtyblocks_counter);
 failed_mount2:
        for (i = 0; i < db_count; i++)
                brelse(sbi->s_group_desc[i]);
@@ -3949,13 +3975,11 @@ static int ext4_commit_super(struct super_block *sb, int sync)
        else
                es->s_kbytes_written =
                        cpu_to_le64(EXT4_SB(sb)->s_kbytes_written);
-        if (percpu_counter_initialized(&EXT4_SB(sb)->s_freeblocks_counter))
+        ext4_free_blocks_count_set(es, percpu_counter_sum_positive(
-                ext4_free_blocks_count_set(es, percpu_counter_sum_positive(
+                                           &EXT4_SB(sb)->s_freeblocks_counter));
-                                        &EXT4_SB(sb)->s_freeblocks_counter));
+        es->s_free_inodes_count =
-        if (percpu_counter_initialized(&EXT4_SB(sb)->s_freeinodes_counter))
+                cpu_to_le32(percpu_counter_sum_positive(
-                es->s_free_inodes_count =
+                                &EXT4_SB(sb)->s_freeinodes_counter));
-                        cpu_to_le32(percpu_counter_sum_positive(
-                                        &EXT4_SB(sb)->s_freeinodes_counter));
        sb->s_dirt = 0;
        BUFFER_TRACE(sbh, "marking dirty");
        mark_buffer_dirty(sbh);
@@ -4556,12 +4580,10 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
 static int ext4_quota_off(struct super_block *sb, int type)
 {
-        /* Force all delayed allocation blocks to be allocated */
+        /* Force all delayed allocation blocks to be allocated.
-        if (test_opt(sb, DELALLOC)) {
+         * Caller already holds s_umount sem */
-                down_read(&sb->s_umount);
+        if (test_opt(sb, DELALLOC))
                sync_filesystem(sb);
-                up_read(&sb->s_umount);
-        }
        return dquot_quota_off(sb, type);
 }
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index d6cfac1f0a40..a5fe68189eed 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -932,8 +932,7 @@ struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag,
        if (creat_flags == HUGETLB_SHMFS_INODE && !can_do_hugetlb_shm()) {
                *user = current_user();
                if (user_shm_lock(size, *user)) {
-                        WARN_ONCE(1,
+                        printk_once(KERN_WARNING "Using mlock ulimits for SHM_HUGETLB is deprecated\n");
-                          "Using mlock ulimits for SHM_HUGETLB deprecated\n");
                } else {
                        *user = NULL;
                        return ERR_PTR(-EPERM);
diff --git a/fs/locks.c b/fs/locks.c
index 65765cb6afed..0e62dd35d088 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1504,9 +1504,8 @@ static int do_fcntl_delete_lease(struct file *filp)
 static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg)
 {
-        struct file_lock *fl;
+        struct file_lock *fl, *ret;
        struct fasync_struct *new;
-        struct inode *inode = filp->f_path.dentry->d_inode;
        int error;
        fl = lease_alloc(filp, arg);
@@ -1518,13 +1517,16 @@ static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg)
                locks_free_lock(fl);
                return -ENOMEM;
        }
+        ret = fl;
        lock_flocks();
-        error = __vfs_setlease(filp, arg, &fl);
+        error = __vfs_setlease(filp, arg, &ret);
        if (error) {
                unlock_flocks();
                locks_free_lock(fl);
                goto out_free_fasync;
        }
+        if (ret != fl)
+                locks_free_lock(fl);
        /*
         * fasync_insert_entry() returns the old entry if any.
@@ -1532,17 +1534,10 @@ static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg)
         * inserted it into the fasync list. Clear new so that
         * we don't release it here.
         */
-        if (!fasync_insert_entry(fd, filp, &fl->fl_fasync, new))
+        if (!fasync_insert_entry(fd, filp, &ret->fl_fasync, new))
                new = NULL;
-        if (error < 0) {
+        error = __f_setown(filp, task_pid(current), PIDTYPE_PID, 0);
-                /* remove lease just inserted by setlease */
-                fl->fl_type = F_UNLCK | F_INPROGRESS;
-                fl->fl_break_time = jiffies - 10;
-                time_out_leases(inode);
-        } else {
-                error = __f_setown(filp, task_pid(current), PIDTYPE_PID, 0);
-        }
        unlock_flocks();
 out_free_fasync:
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index f1e5ec6b5105..ad2bfa68d534 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -673,16 +673,17 @@ static void nfsd4_hash_conn(struct nfsd4_conn *conn, struct nfsd4_session *ses)
        spin_unlock(&clp->cl_lock);
 }
-static void nfsd4_register_conn(struct nfsd4_conn *conn)
+static int nfsd4_register_conn(struct nfsd4_conn *conn)
 {
        conn->cn_xpt_user.callback = nfsd4_conn_lost;
-        register_xpt_user(conn->cn_xprt, &conn->cn_xpt_user);
+        return register_xpt_user(conn->cn_xprt, &conn->cn_xpt_user);
 }
 static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses)
 {
        struct nfsd4_conn *conn;
        u32 flags = NFS4_CDFC4_FORE;
+        int ret;
        if (ses->se_flags & SESSION4_BACK_CHAN)
                flags |= NFS4_CDFC4_BACK;
@@ -690,7 +691,10 @@ static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses)
        if (!conn)
                return nfserr_jukebox;
        nfsd4_hash_conn(conn, ses);
-        nfsd4_register_conn(conn);
+        ret = nfsd4_register_conn(conn);
+        if (ret)
+                /* oops; xprt is already down: */
+                nfsd4_conn_lost(&conn->cn_xpt_user);
        return nfs_ok;
 }
@@ -1644,6 +1648,7 @@ static void nfsd4_sequence_check_conn(struct nfsd4_conn *new, struct nfsd4_sessi
 {
        struct nfs4_client *clp = ses->se_client;
        struct nfsd4_conn *c;
+        int ret;
        spin_lock(&clp->cl_lock);
        c = __nfsd4_find_conn(new->cn_xprt, ses);
@@ -1654,7 +1659,10 @@ static void nfsd4_sequence_check_conn(struct nfsd4_conn *new, struct nfsd4_sessi
        }
        __nfsd4_hash_conn(new, ses);
        spin_unlock(&clp->cl_lock);
-        nfsd4_register_conn(new);
+        ret = nfsd4_register_conn(new);
+        if (ret)
+                /* oops; xprt is already down: */
+                nfsd4_conn_lost(&new->cn_xpt_user);
        return;
 }
diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index ddb1f41376e5..911e61f348fc 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -418,7 +418,7 @@ out_no_root:
 static struct dentry *openprom_mount(struct file_system_type *fs_type,
        int flags, const char *dev_name, void *data)
 {
-        return mount_single(fs_type, flags, data, openprom_fill_super)
+        return mount_single(fs_type, flags, data, openprom_fill_super);
 }
 static struct file_system_type openprom_fs_type = {
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index c9af48fffcd7..7d287afccde5 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1111,11 +1111,12 @@ xfs_vm_writepage(
                        uptodate = 0;
                /*
-                 * A hole may still be marked uptodate because discard_buffer
+                 * set_page_dirty dirties all buffers in a page, independent
-                 * leaves the flag set.
+                 * of their state.  The dirty state however is entirely
+                 * meaningless for holes (!mapped && uptodate), so skip
+                 * buffers covering holes here.
                 */
                if (!buffer_mapped(bh) && buffer_uptodate(bh)) {
-                        ASSERT(!buffer_dirty(bh));
                        imap_valid = 0;
                        continue;
                }
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 63fd2c07cb57..aa1d353def29 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1781,7 +1781,6 @@ xfs_buf_delwri_split(
        INIT_LIST_HEAD(list);
        spin_lock(dwlk);
        list_for_each_entry_safe(bp, n, dwq, b_list) {
-                trace_xfs_buf_delwri_split(bp, _RET_IP_);
                ASSERT(bp->b_flags & XBF_DELWRI);
                if (!XFS_BUF_ISPINNED(bp) && !xfs_buf_cond_lock(bp)) {
@@ -1795,6 +1794,7 @@ xfs_buf_delwri_split(
                                         _XBF_RUN_QUEUES);
                        bp->b_flags |= XBF_WRITE;
                        list_move_tail(&bp->b_list, list);
+                        trace_xfs_buf_delwri_split(bp, _RET_IP_);
                } else
                        skipped++;
        }
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 2ea238f6d38e..ad442d9e392e 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -416,7 +416,7 @@ xfs_attrlist_by_handle(
        if (IS_ERR(dentry))
                return PTR_ERR(dentry);
-        kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL);
+        kbuf = kzalloc(al_hreq.buflen, GFP_KERNEL);
        if (!kbuf)
                goto out_dput;
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 96107efc0c61..94d5fd6a2973 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -762,7 +762,8 @@ xfs_setup_inode(
        inode->i_state = I_NEW;
        inode_sb_list_add(inode);
-        insert_inode_hash(inode);
+        /* make the inode look hashed for the writeback code */
+        hlist_add_fake(&inode->i_hash);
        inode->i_mode   = ip->i_d.di_mode;
        inode->i_nlink  = ip->i_d.di_nlink;
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 9f3a78fe6ae4..064f964d4f3c 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -353,9 +353,6 @@ xfs_parseargs(
                        mp->m_qflags &= ~XFS_OQUOTA_ENFD;
                } else if (!strcmp(this_char, MNTOPT_DELAYLOG)) {
                        mp->m_flags |= XFS_MOUNT_DELAYLOG;
-                        cmn_err(CE_WARN,
-                                "Enabling EXPERIMENTAL delayed logging feature "
-                                "- use at your own risk.\n");
                } else if (!strcmp(this_char, MNTOPT_NODELAYLOG)) {
                        mp->m_flags &= ~XFS_MOUNT_DELAYLOG;
                } else if (!strcmp(this_char, "ihashsize")) {
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index 37d33254981d..afb0d7cfad1c 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -853,6 +853,7 @@ restart:
                if (trylock) {
                        if (!mutex_trylock(&pag->pag_ici_reclaim_lock)) {
                                skipped++;
+                                xfs_perag_put(pag);
                                continue;
                        }
                        first_index = pag->pag_ici_reclaim_cursor;
diff --git a/fs/xfs/xfs_filestream.c b/fs/xfs/xfs_filestream.c
index 9b715dce5699..9124425b7f2f 100644
--- a/fs/xfs/xfs_filestream.c
+++ b/fs/xfs/xfs_filestream.c
@@ -744,9 +744,15 @@ xfs_filestream_new_ag(
         * If the file's parent directory is known, take its iolock in exclusive
         * mode to prevent two sibling files from racing each other to migrate
         * themselves and their parent to different AGs.
+         *
+         * Note that we lock the parent directory iolock inside the child
+         * iolock here.  That's fine as we never hold both parent and child
+         * iolock in any other place.  This is different from the ilock,
+         * which requires locking of the child after the parent for namespace
+         * operations.
         */
        if (pip)
-                xfs_ilock(pip, XFS_IOLOCK_EXCL);
+                xfs_ilock(pip, XFS_IOLOCK_EXCL | XFS_IOLOCK_PARENT);
        /*
         * A new AG needs to be found for the file.  If the file's parent
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index b1498ab5a399..19e9dfa1c254 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -275,6 +275,7 @@ xfs_free_perag(
                pag = radix_tree_delete(&mp->m_perag_tree, agno);
                spin_unlock(&mp->m_perag_lock);
                ASSERT(pag);
+                ASSERT(atomic_read(&pag->pag_ref) == 0);
                call_rcu(&pag->rcu_head, __xfs_free_perag);
        }
 }
diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
index e0e64b113bd6..9bb6eda4cd21 100644
--- a/fs/xfs/xfs_quota.h
+++ b/fs/xfs/xfs_quota.h
@@ -346,8 +346,17 @@ xfs_qm_vop_dqalloc(struct xfs_inode *ip, uid_t uid, gid_t gid, prid_t prid,
 #define xfs_trans_mod_dquot_byino(tp, ip, fields, delta)
 #define xfs_trans_apply_dquot_deltas(tp)
 #define xfs_trans_unreserve_and_mod_dquots(tp)
-#define xfs_trans_reserve_quota_nblks(tp, ip, nblks, ninos, flags)      (0)
+static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp,
-#define xfs_trans_reserve_quota_bydquots(tp, mp, u, g, nb, ni, fl)      (0)
+                struct xfs_inode *ip, long nblks, long ninos, uint flags)
+{
+        return 0;
+}
+static inline int xfs_trans_reserve_quota_bydquots(struct xfs_trans *tp,
+                struct xfs_mount *mp, struct xfs_dquot *udqp,
+                struct xfs_dquot *gdqp, long nblks, long nions, uint flags)
+{
+        return 0;
+}
 #define xfs_qm_vop_create_dqattach(tp, ip, u, g)
 #define xfs_qm_vop_rename_dqattach(it)                                  (0)
 #define xfs_qm_vop_chown(tp, ip, old, new)                              (NULL)
@@ -357,11 +366,14 @@ xfs_qm_vop_dqalloc(struct xfs_inode *ip, uid_t uid, gid_t gid, prid_t prid,
 #define xfs_qm_dqdetach(ip)
 #define xfs_qm_dqrele(d)
 #define xfs_qm_statvfs(ip, s)
-#define xfs_qm_sync(mp, fl)                                             (0)
+static inline int xfs_qm_sync(struct xfs_mount *mp, int flags)
+{
+        return 0;
+}
 #define xfs_qm_newmount(mp, a, b)                                       (0)
 #define xfs_qm_mount_quotas(mp)
 #define xfs_qm_unmount(mp)
-#define xfs_qm_unmount_quotas(mp)                                       (0)
+#define xfs_qm_unmount_quotas(mp)
 #endif /* CONFIG_XFS_QUOTA */
 #define xfs_trans_unreserve_quota_nblks(tp, ip, nblks, ninos, flags) \
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 5afa5b52063e..beafc156a535 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -432,6 +432,10 @@ extern void ttm_bo_synccpu_write_release(struct ttm_buffer_object *bo);
 * together with the @destroy function,
 * enables driver-specific objects derived from a ttm_buffer_object.
 * On successful return, the object kref and list_kref are set to 1.
+ * If a failure occurs, the function will call the @destroy function, or
+ * kfree() if @destroy is NULL. Thus, after a failure, dereferencing @bo is
+ * illegal and will likely cause memory corruption.
+ *
 * Returns
 * -ENOMEM: Out of memory.
 * -EINVAL: Invalid placement flags.
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index d01b4ddbdc56..8e0c848326b6 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -206,14 +206,84 @@ struct ttm_tt {
 struct ttm_mem_type_manager;
 struct ttm_mem_type_manager_func {
+        /**
+         * struct ttm_mem_type_manager member init
+         *
+         * @man: Pointer to a memory type manager.
+         * @p_size: Implementation dependent, but typically the size of the
+         * range to be managed in pages.
+         *
+         * Called to initialize a private range manager. The function is
+         * expected to initialize the man::priv member.
+         * Returns 0 on success, negative error code on failure.
+         */
        int  (*init)(struct ttm_mem_type_manager *man, unsigned long p_size);
+        /**
+         * struct ttm_mem_type_manager member takedown
+         *
+         * @man: Pointer to a memory type manager.
+         *
+         * Called to undo the setup done in init. All allocated resources
+         * should be freed.
+         */
        int  (*takedown)(struct ttm_mem_type_manager *man);
+        /**
+         * struct ttm_mem_type_manager member get_node
+         *
+         * @man: Pointer to a memory type manager.
+         * @bo: Pointer to the buffer object we're allocating space for.
+         * @placement: Placement details.
+         * @mem: Pointer to a struct ttm_mem_reg to be filled in.
+         *
+         * This function should allocate space in the memory type managed
+         * by @man. Placement details if
+         * applicable are given by @placement. If successful,
+         * @mem::mm_node should be set to a non-null value, and
+         * @mem::start should be set to a value identifying the beginning
+         * of the range allocated, and the function should return zero.
+         * If the memory region accomodate the buffer object, @mem::mm_node
+         * should be set to NULL, and the function should return 0.
+         * If a system error occured, preventing the request to be fulfilled,
+         * the function should return a negative error code.
+         *
+         * Note that @mem::mm_node will only be dereferenced by
+         * struct ttm_mem_type_manager functions and optionally by the driver,
+         * which has knowledge of the underlying type.
+         *
+         * This function may not be called from within atomic context, so
+         * an implementation can and must use either a mutex or a spinlock to
+         * protect any data structures managing the space.
+         */
        int  (*get_node)(struct ttm_mem_type_manager *man,
                         struct ttm_buffer_object *bo,
                         struct ttm_placement *placement,
                         struct ttm_mem_reg *mem);
+        /**
+         * struct ttm_mem_type_manager member put_node
+         *
+         * @man: Pointer to a memory type manager.
+         * @mem: Pointer to a struct ttm_mem_reg to be filled in.
+         *
+         * This function frees memory type resources previously allocated
+         * and that are identified by @mem::mm_node and @mem::start. May not
+         * be called from within atomic context.
+         */
        void (*put_node)(struct ttm_mem_type_manager *man,
                         struct ttm_mem_reg *mem);
+        /**
+         * struct ttm_mem_type_manager member debug
+         *
+         * @man: Pointer to a memory type manager.
+         * @prefix: Prefix to be used in printout to identify the caller.
+         *
+         * This function is called to print out the state of the memory
+         * type manager to aid debugging of out-of-memory conditions.
+         * It may not be called from within atomic context.
+         */
        void (*debug)(struct ttm_mem_type_manager *man, const char *prefix);
 };
@@ -231,14 +301,13 @@ struct ttm_mem_type_manager {
        uint64_t size;
        uint32_t available_caching;
        uint32_t default_caching;
+        const struct ttm_mem_type_manager_func *func;
+        void *priv;
        /*
-         * Protected by the bdev->lru_lock.
+         * Protected by the global->lru_lock.
-         * TODO: Consider one lru_lock per ttm_mem_type_manager.
-         * Plays ill with list removal, though.
         */
-        const struct ttm_mem_type_manager_func *func;
-        void *priv;
        struct list_head lru;
 };
diff --git a/include/linux/atomic.h b/include/linux/atomic.h
new file mode 100644
index 000000000000..96c038e43d66
--- /dev/null
+++ b/include/linux/atomic.h
@@ -0,0 +1,37 @@
+#ifndef _LINUX_ATOMIC_H
+#define _LINUX_ATOMIC_H
+#include <asm/atomic.h>
+/**
+ * atomic_inc_not_zero_hint - increment if not null
+ * @v: pointer of type atomic_t
+ * @hint: probable value of the atomic before the increment
+ *
+ * This version of atomic_inc_not_zero() gives a hint of probable
+ * value of the atomic. This helps processor to not read the memory
+ * before doing the atomic read/modify/write cycle, lowering
+ * number of bus transactions on some arches.
+ *
+ * Returns: 0 if increment was not done, 1 otherwise.
+ */
+#ifndef atomic_inc_not_zero_hint
+static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint)
+{
+        int val, c = hint;
+        /* sanity test, should be removed by compiler if hint is a constant */
+        if (!hint)
+                return atomic_inc_not_zero(v);
+        do {
+                val = atomic_cmpxchg(v, c, c + 1);
+                if (val == c)
+                        return 1;
+                c = val;
+        } while (c);
+        return 0;
+}
+#endif
+#endif /* _LINUX_ATOMIC_H */
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index e9138198e823..b676c585574e 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -5,6 +5,7 @@
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/uaccess.h>
+#include <linux/hardirq.h>
 #include <asm/cacheflush.h>
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 450092c1e35f..fc3da9e4da19 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -60,7 +60,7 @@ extern const char linux_proc_banner[];
 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
 #define roundup(x, y) (                                 \
 {                                                       \
-        typeof(y) __y = y;                              \
+        const typeof(y) __y = y;                        \
        (((x) + (__y - 1)) / __y) * __y;                \
 }                                                       \
 )
@@ -293,6 +293,7 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
                                   unsigned int interval_msec);
 extern int printk_delay_msec;
+extern int dmesg_restrict;
 /*
 * Print a one-time message (analogous to WARN_ONCE() et al):
diff --git a/include/linux/leds-lp5521.h b/include/linux/leds-lp5521.h
new file mode 100644
index 000000000000..38368d785f08
--- /dev/null
+++ b/include/linux/leds-lp5521.h
@@ -0,0 +1,47 @@
+/*
+ * LP5521 LED chip driver.
+ *
+ * Copyright (C) 2010 Nokia Corporation
+ *
+ * Contact: Samu Onkalo <samu.p.onkalo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+#ifndef __LINUX_LP5521_H
+#define __LINUX_LP5521_H
+/* See Documentation/leds/leds-lp5521.txt */
+struct lp5521_led_config {
+        u8              chan_nr;
+        u8              led_current; /* mA x10, 0 if led is not connected */
+        u8              max_current;
+};
+#define LP5521_CLOCK_AUTO       0
+#define LP5521_CLOCK_INT        1
+#define LP5521_CLOCK_EXT        2
+struct lp5521_platform_data {
+        struct lp5521_led_config *led_config;
+        u8      num_channels;
+        u8      clock_mode;
+        int     (*setup_resources)(void);
+        void    (*release_resources)(void);
+        void    (*enable)(bool state);
+};
+#endif /* __LINUX_LP5521_H */
diff --git a/include/linux/leds-lp5523.h b/include/linux/leds-lp5523.h
new file mode 100644
index 000000000000..796747637b80
--- /dev/null
+++ b/include/linux/leds-lp5523.h
@@ -0,0 +1,47 @@
+/*
+ * LP5523 LED Driver
+ *
+ * Copyright (C) 2010 Nokia Corporation
+ *
+ * Contact: Samu Onkalo <samu.p.onkalo@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+#ifndef __LINUX_LP5523_H
+#define __LINUX_LP5523_H
+/* See Documentation/leds/leds-lp5523.txt */
+struct lp5523_led_config {
+        u8              chan_nr;
+        u8              led_current; /* mA x10, 0 if led is not connected */
+        u8              max_current;
+};
+#define LP5523_CLOCK_AUTO       0
+#define LP5523_CLOCK_INT        1
+#define LP5523_CLOCK_EXT        2
+struct lp5523_platform_data {
+        struct lp5523_led_config *led_config;
+        u8      num_channels;
+        u8      clock_mode;
+        int     (*setup_resources)(void);
+        void    (*release_resources)(void);
+        void    (*enable)(bool state);
+};
+#endif /* __LINUX_LP5523_H */
diff --git a/include/linux/leds.h b/include/linux/leds.h
index ba6986a11663..0f19df9e37b0 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -15,6 +15,7 @@
 #include <linux/list.h>
 #include <linux/spinlock.h>
 #include <linux/rwsem.h>
+#include <linux/timer.h>
 struct device;
 /*
@@ -45,10 +46,14 @@ struct led_classdev {
        /* Get LED brightness level */
        enum led_brightness (*brightness_get)(struct led_classdev *led_cdev);
-        /* Activate hardware accelerated blink, delays are in
+        /*
-         * miliseconds and if none is provided then a sensible default
+         * Activate hardware accelerated blink, delays are in milliseconds
-         * should be chosen. The call can adjust the timings if it can't
+         * and if both are zero then a sensible default should be chosen.
-         * match the values specified exactly. */
+         * The call should adjust the timings in that case and if it can't
+         * match the values specified exactly.
+         * Deactivate blinking again when the brightness is set to a fixed
+         * value via the brightness_set() callback.
+         */
        int             (*blink_set)(struct led_classdev *led_cdev,
                                     unsigned long *delay_on,
                                     unsigned long *delay_off);
@@ -57,6 +62,10 @@ struct led_classdev {
        struct list_head         node;                  /* LED Device list */
        const char              *default_trigger;       /* Trigger to use */
+        unsigned long            blink_delay_on, blink_delay_off;
+        struct timer_list        blink_timer;
+        int                      blink_brightness;
 #ifdef CONFIG_LEDS_TRIGGERS
        /* Protects the trigger data below */
        struct rw_semaphore      trigger_lock;
@@ -73,6 +82,36 @@ extern void led_classdev_unregister(struct led_classdev *led_cdev);
 extern void led_classdev_suspend(struct led_classdev *led_cdev);
 extern void led_classdev_resume(struct led_classdev *led_cdev);
+/**
+ * led_blink_set - set blinking with software fallback
+ * @led_cdev: the LED to start blinking
+ * @delay_on: the time it should be on (in ms)
+ * @delay_off: the time it should ble off (in ms)
+ *
+ * This function makes the LED blink, attempting to use the
+ * hardware acceleration if possible, but falling back to
+ * software blinking if there is no hardware blinking or if
+ * the LED refuses the passed values.
+ *
+ * Note that if software blinking is active, simply calling
+ * led_cdev->brightness_set() will not stop the blinking,
+ * use led_classdev_brightness_set() instead.
+ */
+extern void led_blink_set(struct led_classdev *led_cdev,
+                          unsigned long *delay_on,
+                          unsigned long *delay_off);
+/**
+ * led_brightness_set - set LED brightness
+ * @led_cdev: the LED to set
+ * @brightness: the brightness to set it to
+ *
+ * Set an LED's brightness, and, if necessary, cancel the
+ * software blink timer that implements blinking when the
+ * hardware doesn't.
+ */
+extern void led_brightness_set(struct led_classdev *led_cdev,
+                               enum led_brightness brightness);
 /*
 * LED Triggers
 */
diff --git a/include/linux/mmc/sh_mmcif.h b/include/linux/mmc/sh_mmcif.h
index d19e2114fd86..5c99da1078aa 100644
--- a/include/linux/mmc/sh_mmcif.h
+++ b/include/linux/mmc/sh_mmcif.h
@@ -59,19 +59,19 @@ struct sh_mmcif_plat_data {
 #define MMCIF_CE_HOST_STS2      0x0000004C
 #define MMCIF_CE_VERSION        0x0000007C
-extern inline u32 sh_mmcif_readl(void __iomem *addr, int reg)
+static inline u32 sh_mmcif_readl(void __iomem *addr, int reg)
 {
        return readl(addr + reg);
 }
-extern inline void sh_mmcif_writel(void __iomem *addr, int reg, u32 val)
+static inline void sh_mmcif_writel(void __iomem *addr, int reg, u32 val)
 {
        writel(val, addr + reg);
 }
 #define SH_MMCIF_BBS 512 /* boot block size */
-extern inline void sh_mmcif_boot_cmd_send(void __iomem *base,
+static inline void sh_mmcif_boot_cmd_send(void __iomem *base,
                                          unsigned long cmd, unsigned long arg)
 {
        sh_mmcif_writel(base, MMCIF_CE_INT, 0);
@@ -79,7 +79,7 @@ extern inline void sh_mmcif_boot_cmd_send(void __iomem *base,
        sh_mmcif_writel(base, MMCIF_CE_CMD_SET, cmd);
 }
-extern inline int sh_mmcif_boot_cmd_poll(void __iomem *base, unsigned long mask)
+static inline int sh_mmcif_boot_cmd_poll(void __iomem *base, unsigned long mask)
 {
        unsigned long tmp;
        int cnt;
@@ -95,14 +95,14 @@ extern inline int sh_mmcif_boot_cmd_poll(void __iomem *base, unsigned long mask)
        return -1;
 }
-extern inline int sh_mmcif_boot_cmd(void __iomem *base,
+static inline int sh_mmcif_boot_cmd(void __iomem *base,
                                    unsigned long cmd, unsigned long arg)
 {
        sh_mmcif_boot_cmd_send(base, cmd, arg);
        return sh_mmcif_boot_cmd_poll(base, 0x00010000);
 }
-extern inline int sh_mmcif_boot_do_read_single(void __iomem *base,
+static inline int sh_mmcif_boot_do_read_single(void __iomem *base,
                                               unsigned int block_nr,
                                               unsigned long *buf)
 {
@@ -125,7 +125,7 @@ extern inline int sh_mmcif_boot_do_read_single(void __iomem *base,
        return 0;
 }
-extern inline int sh_mmcif_boot_do_read(void __iomem *base,
+static inline int sh_mmcif_boot_do_read(void __iomem *base,
                                        unsigned long first_block,
                                        unsigned long nr_blocks,
                                        void *buf)
@@ -143,7 +143,7 @@ extern inline int sh_mmcif_boot_do_read(void __iomem *base,
        return ret;
 }
-extern inline void sh_mmcif_boot_init(void __iomem *base)
+static inline void sh_mmcif_boot_init(void __iomem *base)
 {
        unsigned long tmp;
@@ -177,7 +177,7 @@ extern inline void sh_mmcif_boot_init(void __iomem *base)
        sh_mmcif_boot_cmd(base, 0x03400040, 0x00010000);
 }
-extern inline void sh_mmcif_boot_slurp(void __iomem *base,
+static inline void sh_mmcif_boot_slurp(void __iomem *base,
                                       unsigned char *buf,
                                       unsigned long no_bytes)
 {
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 057bf22a8323..40150f345982 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -747,6 +747,16 @@ struct perf_event {
        u64                             tstamp_running;
        u64                             tstamp_stopped;
+        /*
+         * timestamp shadows the actual context timing but it can
+         * be safely used in NMI interrupt context. It reflects the
+         * context time as it was when the event was last scheduled in.
+         *
+         * ctx_time already accounts for ctx->timestamp. Therefore to
+         * compute ctx_time for a sample, simply add perf_clock().
+         */
+        u64                             shadow_ctx_time;
        struct perf_event_attr          attr;
        struct hw_perf_event            hw;
diff --git a/include/linux/pwm_backlight.h b/include/linux/pwm_backlight.h
index 01b3d759f1fc..e031e1a486d9 100644
--- a/include/linux/pwm_backlight.h
+++ b/include/linux/pwm_backlight.h
@@ -8,6 +8,7 @@ struct platform_pwm_backlight_data {
        int pwm_id;
        unsigned int max_brightness;
        unsigned int dft_brightness;
+        unsigned int lth_brightness;
        unsigned int pwm_period_ns;
        int (*init)(struct device *dev);
        int (*notify)(struct device *dev, int brightness);
diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h
index a39cbed9ee17..ab2baa5c4884 100644
--- a/include/linux/radix-tree.h
+++ b/include/linux/radix-tree.h
@@ -34,19 +34,13 @@
 * needed for RCU lookups (because root->height is unreliable). The only
 * time callers need worry about this is when doing a lookup_slot under
 * RCU.
+ *
+ * Indirect pointer in fact is also used to tag the last pointer of a node
+ * when it is shrunk, before we rcu free the node. See shrink code for
+ * details.
 */
 #define RADIX_TREE_INDIRECT_PTR 1
-#define RADIX_TREE_RETRY ((void *)-1UL)
-static inline void *radix_tree_ptr_to_indirect(void *ptr)
-{
-        return (void *)((unsigned long)ptr | RADIX_TREE_INDIRECT_PTR);
-}
-static inline void *radix_tree_indirect_to_ptr(void *ptr)
-{
-        return (void *)((unsigned long)ptr & ~RADIX_TREE_INDIRECT_PTR);
-}
 #define radix_tree_indirect_to_ptr(ptr) \
        radix_tree_indirect_to_ptr((void __force *)(ptr))
@@ -140,16 +134,29 @@ do {									\
 *              removed.
 *
 * For use with radix_tree_lookup_slot().  Caller must hold tree at least read
- * locked across slot lookup and dereference.  More likely, will be used with
+ * locked across slot lookup and dereference. Not required if write lock is
- * radix_tree_replace_slot(), as well, so caller will hold tree write locked.
+ * held (ie. items cannot be concurrently inserted).
+ *
+ * radix_tree_deref_retry must be used to confirm validity of the pointer if
+ * only the read lock is held.
 */
 static inline void *radix_tree_deref_slot(void **pslot)
 {
-        void *ret = rcu_dereference(*pslot);
+        return rcu_dereference(*pslot);
-        if (unlikely(radix_tree_is_indirect_ptr(ret)))
-                ret = RADIX_TREE_RETRY;
-        return ret;
 }
+/**
+ * radix_tree_deref_retry       - check radix_tree_deref_slot
+ * @arg:        pointer returned by radix_tree_deref_slot
+ * Returns:     0 if retry is not required, otherwise retry is required
+ *
+ * radix_tree_deref_retry must be used with radix_tree_deref_slot.
+ */
+static inline int radix_tree_deref_retry(void *arg)
+{
+        return unlikely((unsigned long)arg & RADIX_TREE_INDIRECT_PTR);
+}
 /**
 * radix_tree_replace_slot      - replace item in a slot
 * @pslot:      pointer to slot, returned by radix_tree_lookup_slot
diff --git a/include/linux/resource.h b/include/linux/resource.h
index 88d36f9145ba..d01c96c1966e 100644
--- a/include/linux/resource.h
+++ b/include/linux/resource.h
@@ -2,6 +2,7 @@
 #define _LINUX_RESOURCE_H
 #include <linux/time.h>
+#include <linux/types.h>
 /*
 * Resource control/accounting header file for linux
diff --git a/include/linux/sh_clk.h b/include/linux/sh_clk.h
index 4dca992f3093..cea0c38e7a63 100644
--- a/include/linux/sh_clk.h
+++ b/include/linux/sh_clk.h
@@ -122,6 +122,10 @@ int clk_rate_table_find(struct clk *clk,
 long clk_rate_div_range_round(struct clk *clk, unsigned int div_min,
                              unsigned int div_max, unsigned long rate);
+long clk_round_parent(struct clk *clk, unsigned long target,
+                      unsigned long *best_freq, unsigned long *parent_freq,
+                      unsigned int div_min, unsigned int div_max);
 #define SH_CLK_MSTP32(_parent, _enable_reg, _enable_bit, _flags)        \
 {                                                                       \
        .parent         = _parent,                                      \
diff --git a/include/linux/sh_timer.h b/include/linux/sh_timer.h
index 864bd56bd3b0..4d9dcd138315 100644
--- a/include/linux/sh_timer.h
+++ b/include/linux/sh_timer.h
@@ -5,7 +5,6 @@ struct sh_timer_config {
        char *name;
        long channel_offset;
        int timer_bit;
-        char *clk;
        unsigned long clockevent_rating;
        unsigned long clocksource_rating;
 };
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index bbdb680ffbe9..aea0d438e3c7 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -82,18 +82,28 @@ struct svc_xprt {
        struct net              *xpt_net;
 };
-static inline void register_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u)
+static inline void unregister_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u)
 {
        spin_lock(&xpt->xpt_lock);
-        list_add(&u->list, &xpt->xpt_users);
+        list_del_init(&u->list);
        spin_unlock(&xpt->xpt_lock);
 }
-static inline void unregister_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u)
+static inline int register_xpt_user(struct svc_xprt *xpt, struct svc_xpt_user *u)
 {
        spin_lock(&xpt->xpt_lock);
-        list_del_init(&u->list);
+        if (test_bit(XPT_CLOSE, &xpt->xpt_flags)) {
+                /*
+                 * The connection is about to be deleted soon (or,
+                 * worse, may already be deleted--in which case we've
+                 * already notified the xpt_users).
+                 */
+                spin_unlock(&xpt->xpt_lock);
+                return -ENOTCONN;
+        }
+        list_add(&u->list, &xpt->xpt_users);
        spin_unlock(&xpt->xpt_lock);
+        return 0;
 }
 int     svc_reg_xprt_class(struct svc_xprt_class *);
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 289010d3270b..e5e345fb2a5c 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -98,6 +98,103 @@ TRACE_EVENT(ext4_allocate_inode,
                  (unsigned long) __entry->dir, __entry->mode)
 );
+TRACE_EVENT(ext4_evict_inode,
+        TP_PROTO(struct inode *inode),
+        TP_ARGS(inode),
+        TP_STRUCT__entry(
+                __field(        int,   dev_major                )
+                __field(        int,   dev_minor                )
+                __field(        ino_t,  ino                     )
+                __field(        int,    nlink                   )
+        ),
+        TP_fast_assign(
+                __entry->dev_major = MAJOR(inode->i_sb->s_dev);
+                __entry->dev_minor = MINOR(inode->i_sb->s_dev);
+                __entry->ino    = inode->i_ino;
+                __entry->nlink  = inode->i_nlink;
+        ),
+        TP_printk("dev %d,%d ino %lu nlink %d",
+                  __entry->dev_major, __entry->dev_minor,
+                  (unsigned long) __entry->ino, __entry->nlink)
+);
+TRACE_EVENT(ext4_drop_inode,
+        TP_PROTO(struct inode *inode, int drop),
+        TP_ARGS(inode, drop),
+        TP_STRUCT__entry(
+                __field(        int,    dev_major               )
+                __field(        int,    dev_minor               )
+                __field(        ino_t,  ino                     )
+                __field(        int,    drop                    )
+        ),
+        TP_fast_assign(
+                __entry->dev_major = MAJOR(inode->i_sb->s_dev);
+                __entry->dev_minor = MINOR(inode->i_sb->s_dev);
+                __entry->ino    = inode->i_ino;
+                __entry->drop   = drop;
+        ),
+        TP_printk("dev %d,%d ino %lu drop %d",
+                  __entry->dev_major, __entry->dev_minor,
+                  (unsigned long) __entry->ino, __entry->drop)
+);
+TRACE_EVENT(ext4_mark_inode_dirty,
+        TP_PROTO(struct inode *inode, unsigned long IP),
+        TP_ARGS(inode, IP),
+        TP_STRUCT__entry(
+                __field(        int,    dev_major               )
+                __field(        int,    dev_minor               )
+                __field(        ino_t,  ino                     )
+                __field(unsigned long,  ip                      )
+        ),
+        TP_fast_assign(
+                __entry->dev_major = MAJOR(inode->i_sb->s_dev);
+                __entry->dev_minor = MINOR(inode->i_sb->s_dev);
+                __entry->ino    = inode->i_ino;
+                __entry->ip     = IP;
+        ),
+        TP_printk("dev %d,%d ino %lu caller %pF",
+                  __entry->dev_major, __entry->dev_minor,
+                  (unsigned long) __entry->ino, (void *)__entry->ip)
+);
+TRACE_EVENT(ext4_begin_ordered_truncate,
+        TP_PROTO(struct inode *inode, loff_t new_size),
+        TP_ARGS(inode, new_size),
+        TP_STRUCT__entry(
+                __field(        int,    dev_major               )
+                __field(        int,    dev_minor               )
+                __field(        ino_t,  ino                     )
+                __field(        loff_t, new_size                )
+        ),
+        TP_fast_assign(
+                __entry->dev_major      = MAJOR(inode->i_sb->s_dev);
+                __entry->dev_minor      = MINOR(inode->i_sb->s_dev);
+                __entry->ino            = inode->i_ino;
+                __entry->new_size       = new_size;
+        ),
+        TP_printk("dev %d,%d ino %lu new_size %lld",
+                  __entry->dev_major, __entry->dev_minor,
+                  (unsigned long) __entry->ino,
+                  (long long) __entry->new_size)
+);
 DECLARE_EVENT_CLASS(ext4__write_begin,
        TP_PROTO(struct inode *inode, loff_t pos, unsigned int len,
diff --git a/kernel/latencytop.c b/kernel/latencytop.c
index 877fb306d415..17110a4a4fc2 100644
--- a/kernel/latencytop.c
+++ b/kernel/latencytop.c
@@ -194,14 +194,7 @@ __account_scheduler_latency(struct task_struct *tsk, int usecs, int inter)
        account_global_scheduler_latency(tsk, &lat);
-        /*
+        for (i = 0; i < tsk->latency_record_count; i++) {
-         * short term hack; if we're > 32 we stop; future we recycle:
-         */
-        tsk->latency_record_count++;
-        if (tsk->latency_record_count >= LT_SAVECOUNT)
-                goto out_unlock;
-        for (i = 0; i < LT_SAVECOUNT; i++) {
                struct latency_record *mylat;
                int same = 1;
@@ -227,8 +220,14 @@ __account_scheduler_latency(struct task_struct *tsk, int usecs, int inter)
                }
        }
+        /*
+         * short term hack; if we're > 32 we stop; future we recycle:
+         */
+        if (tsk->latency_record_count >= LT_SAVECOUNT)
+                goto out_unlock;
        /* Allocated a new one: */
-        i = tsk->latency_record_count;
+        i = tsk->latency_record_count++;
        memcpy(&tsk->latency_record[i], &lat, sizeof(struct latency_record));
 out_unlock:
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 517d827f4982..cb6c0d2af68f 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -674,6 +674,8 @@ event_sched_in(struct perf_event *event,
        event->tstamp_running += ctx->time - event->tstamp_stopped;
+        event->shadow_ctx_time = ctx->time - ctx->timestamp;
        if (!is_software_event(event))
                cpuctx->active_oncpu++;
        ctx->nr_active++;
@@ -3396,7 +3398,8 @@ static u32 perf_event_tid(struct perf_event *event, struct task_struct *p)
 }
 static void perf_output_read_one(struct perf_output_handle *handle,
-                                 struct perf_event *event)
+                                 struct perf_event *event,
+                                 u64 enabled, u64 running)
 {
        u64 read_format = event->attr.read_format;
        u64 values[4];
@@ -3404,11 +3407,11 @@ static void perf_output_read_one(struct perf_output_handle *handle,
        values[n++] = perf_event_count(event);
        if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
-                values[n++] = event->total_time_enabled +
+                values[n++] = enabled +
                        atomic64_read(&event->child_total_time_enabled);
        }
        if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
-                values[n++] = event->total_time_running +
+                values[n++] = running +
                        atomic64_read(&event->child_total_time_running);
        }
        if (read_format & PERF_FORMAT_ID)
@@ -3421,7 +3424,8 @@ static void perf_output_read_one(struct perf_output_handle *handle,
 * XXX PERF_FORMAT_GROUP vs inherited events seems difficult.
 */
 static void perf_output_read_group(struct perf_output_handle *handle,
-                            struct perf_event *event)
+                            struct perf_event *event,
+                            u64 enabled, u64 running)
 {
        struct perf_event *leader = event->group_leader, *sub;
        u64 read_format = event->attr.read_format;
@@ -3431,10 +3435,10 @@ static void perf_output_read_group(struct perf_output_handle *handle,
        values[n++] = 1 + leader->nr_siblings;
        if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
-                values[n++] = leader->total_time_enabled;
+                values[n++] = enabled;
        if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
-                values[n++] = leader->total_time_running;
+                values[n++] = running;
        if (leader != event)
                leader->pmu->read(leader);
@@ -3459,13 +3463,35 @@ static void perf_output_read_group(struct perf_output_handle *handle,
        }
 }
+#define PERF_FORMAT_TOTAL_TIMES (PERF_FORMAT_TOTAL_TIME_ENABLED|\
+                                 PERF_FORMAT_TOTAL_TIME_RUNNING)
 static void perf_output_read(struct perf_output_handle *handle,
                             struct perf_event *event)
 {
+        u64 enabled = 0, running = 0, now, ctx_time;
+        u64 read_format = event->attr.read_format;
+        /*
+         * compute total_time_enabled, total_time_running
+         * based on snapshot values taken when the event
+         * was last scheduled in.
+         *
+         * we cannot simply called update_context_time()
+         * because of locking issue as we are called in
+         * NMI context
+         */
+        if (read_format & PERF_FORMAT_TOTAL_TIMES) {
+                now = perf_clock();
+                ctx_time = event->shadow_ctx_time + now;
+                enabled = ctx_time - event->tstamp_enabled;
+                running = ctx_time - event->tstamp_running;
+        }
        if (event->attr.read_format & PERF_FORMAT_GROUP)
-                perf_output_read_group(handle, event);
+                perf_output_read_group(handle, event, enabled, running);
        else
-                perf_output_read_one(handle, event);
+                perf_output_read_one(handle, event, enabled, running);
 }
 void perf_output_sample(struct perf_output_handle *handle,
diff --git a/kernel/printk.c b/kernel/printk.c
index b2ebaee8c377..38e7d5868d60 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -261,6 +261,12 @@ static inline void boot_delay_msec(void)
 }
 #endif
+#ifdef CONFIG_SECURITY_DMESG_RESTRICT
+int dmesg_restrict = 1;
+#else
+int dmesg_restrict;
+#endif
 int do_syslog(int type, char __user *buf, int len, bool from_file)
 {
        unsigned i, j, limit, count;
diff --git a/kernel/range.c b/kernel/range.c
index 471b66acabb5..37fa9b99ad58 100644
--- a/kernel/range.c
+++ b/kernel/range.c
@@ -119,7 +119,7 @@ static int cmp_range(const void *x1, const void *x2)
 int clean_sort_range(struct range *range, int az)
 {
-        int i, j, k = az - 1, nr_range = 0;
+        int i, j, k = az - 1, nr_range = az;
        for (i = 0; i < k; i++) {
                if (range[i].end)
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index c33a1edb799f..b65bf634035e 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -704,6 +704,15 @@ static struct ctl_table kern_table[] = {
        },
 #endif
        {
+                .procname       = "dmesg_restrict",
+                .data           = &dmesg_restrict,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &zero,
+                .extra2         = &one,
+        },
+        {
                .procname       = "ngroups_max",
                .data           = &ngroups_max,
                .maxlen         = sizeof (int),
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index 6f412ab4c24f..5086bb962b4d 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -82,6 +82,16 @@ struct radix_tree_preload {
 };
 static DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, };
+static inline void *ptr_to_indirect(void *ptr)
+{
+        return (void *)((unsigned long)ptr | RADIX_TREE_INDIRECT_PTR);
+}
+static inline void *indirect_to_ptr(void *ptr)
+{
+        return (void *)((unsigned long)ptr & ~RADIX_TREE_INDIRECT_PTR);
+}
 static inline gfp_t root_gfp_mask(struct radix_tree_root *root)
 {
        return root->gfp_mask & __GFP_BITS_MASK;
@@ -265,7 +275,7 @@ static int radix_tree_extend(struct radix_tree_root *root, unsigned long index)
                        return -ENOMEM;
                /* Increase the height.  */
-                node->slots[0] = radix_tree_indirect_to_ptr(root->rnode);
+                node->slots[0] = indirect_to_ptr(root->rnode);
                /* Propagate the aggregated tag info into the new root */
                for (tag = 0; tag < RADIX_TREE_MAX_TAGS; tag++) {
@@ -276,7 +286,7 @@ static int radix_tree_extend(struct radix_tree_root *root, unsigned long index)
                newheight = root->height+1;
                node->height = newheight;
                node->count = 1;
-                node = radix_tree_ptr_to_indirect(node);
+                node = ptr_to_indirect(node);
                rcu_assign_pointer(root->rnode, node);
                root->height = newheight;
        } while (height > root->height);
@@ -309,7 +319,7 @@ int radix_tree_insert(struct radix_tree_root *root,
                        return error;
        }
-        slot = radix_tree_indirect_to_ptr(root->rnode);
+        slot = indirect_to_ptr(root->rnode);
        height = root->height;
        shift = (height-1) * RADIX_TREE_MAP_SHIFT;
@@ -325,8 +335,7 @@ int radix_tree_insert(struct radix_tree_root *root,
                                rcu_assign_pointer(node->slots[offset], slot);
                                node->count++;
                        } else
-                                rcu_assign_pointer(root->rnode,
+                                rcu_assign_pointer(root->rnode, ptr_to_indirect(slot));
-                                        radix_tree_ptr_to_indirect(slot));
                }
                /* Go a level down */
@@ -374,7 +383,7 @@ static void *radix_tree_lookup_element(struct radix_tree_root *root,
                        return NULL;
                return is_slot ? (void *)&root->rnode : node;
        }
-        node = radix_tree_indirect_to_ptr(node);
+        node = indirect_to_ptr(node);
        height = node->height;
        if (index > radix_tree_maxindex(height))
@@ -393,7 +402,7 @@ static void *radix_tree_lookup_element(struct radix_tree_root *root,
                height--;
        } while (height > 0);
-        return is_slot ? (void *)slot:node;
+        return is_slot ? (void *)slot : indirect_to_ptr(node);
 }
 /**
@@ -455,7 +464,7 @@ void *radix_tree_tag_set(struct radix_tree_root *root,
        height = root->height;
        BUG_ON(index > radix_tree_maxindex(height));
-        slot = radix_tree_indirect_to_ptr(root->rnode);
+        slot = indirect_to_ptr(root->rnode);
        shift = (height - 1) * RADIX_TREE_MAP_SHIFT;
        while (height > 0) {
@@ -509,7 +518,7 @@ void *radix_tree_tag_clear(struct radix_tree_root *root,
        shift = (height - 1) * RADIX_TREE_MAP_SHIFT;
        pathp->node = NULL;
-        slot = radix_tree_indirect_to_ptr(root->rnode);
+        slot = indirect_to_ptr(root->rnode);
        while (height > 0) {
                int offset;
@@ -579,7 +588,7 @@ int radix_tree_tag_get(struct radix_tree_root *root,
        if (!radix_tree_is_indirect_ptr(node))
                return (index == 0);
-        node = radix_tree_indirect_to_ptr(node);
+        node = indirect_to_ptr(node);
        height = node->height;
        if (index > radix_tree_maxindex(height))
@@ -666,7 +675,7 @@ unsigned long radix_tree_range_tag_if_tagged(struct radix_tree_root *root,
        }
        shift = (height - 1) * RADIX_TREE_MAP_SHIFT;
-        slot = radix_tree_indirect_to_ptr(root->rnode);
+        slot = indirect_to_ptr(root->rnode);
        /*
         * we fill the path from (root->height - 2) to 0, leaving the index at
@@ -897,7 +906,7 @@ radix_tree_gang_lookup(struct radix_tree_root *root, void **results,
                results[0] = node;
                return 1;
        }
-        node = radix_tree_indirect_to_ptr(node);
+        node = indirect_to_ptr(node);
        max_index = radix_tree_maxindex(node->height);
@@ -916,7 +925,8 @@ radix_tree_gang_lookup(struct radix_tree_root *root, void **results,
                        slot = *(((void ***)results)[ret + i]);
                        if (!slot)
                                continue;
-                        results[ret + nr_found] = rcu_dereference_raw(slot);
+                        results[ret + nr_found] =
+                                indirect_to_ptr(rcu_dereference_raw(slot));
                        nr_found++;
                }
                ret += nr_found;
@@ -965,7 +975,7 @@ radix_tree_gang_lookup_slot(struct radix_tree_root *root, void ***results,
                results[0] = (void **)&root->rnode;
                return 1;
        }
-        node = radix_tree_indirect_to_ptr(node);
+        node = indirect_to_ptr(node);
        max_index = radix_tree_maxindex(node->height);
@@ -1090,7 +1100,7 @@ radix_tree_gang_lookup_tag(struct radix_tree_root *root, void **results,
                results[0] = node;
                return 1;
        }
-        node = radix_tree_indirect_to_ptr(node);
+        node = indirect_to_ptr(node);
        max_index = radix_tree_maxindex(node->height);
@@ -1109,7 +1119,8 @@ radix_tree_gang_lookup_tag(struct radix_tree_root *root, void **results,
                        slot = *(((void ***)results)[ret + i]);
                        if (!slot)
                                continue;
-                        results[ret + nr_found] = rcu_dereference_raw(slot);
+                        results[ret + nr_found] =
+                                indirect_to_ptr(rcu_dereference_raw(slot));
                        nr_found++;
                }
                ret += nr_found;
@@ -1159,7 +1170,7 @@ radix_tree_gang_lookup_tag_slot(struct radix_tree_root *root, void ***results,
                results[0] = (void **)&root->rnode;
                return 1;
        }
-        node = radix_tree_indirect_to_ptr(node);
+        node = indirect_to_ptr(node);
        max_index = radix_tree_maxindex(node->height);
@@ -1195,7 +1206,7 @@ static inline void radix_tree_shrink(struct radix_tree_root *root)
                void *newptr;
                BUG_ON(!radix_tree_is_indirect_ptr(to_free));
-                to_free = radix_tree_indirect_to_ptr(to_free);
+                to_free = indirect_to_ptr(to_free);
                /*
                 * The candidate node has more than one child, or its child
@@ -1208,16 +1219,39 @@ static inline void radix_tree_shrink(struct radix_tree_root *root)
                /*
                 * We don't need rcu_assign_pointer(), since we are simply
-                 * moving the node from one part of the tree to another. If
+                 * moving the node from one part of the tree to another: if it
-                 * it was safe to dereference the old pointer to it
+                 * was safe to dereference the old pointer to it
                 * (to_free->slots[0]), it will be safe to dereference the new
-                 * one (root->rnode).
+                 * one (root->rnode) as far as dependent read barriers go.
                 */
                newptr = to_free->slots[0];
                if (root->height > 1)
-                        newptr = radix_tree_ptr_to_indirect(newptr);
+                        newptr = ptr_to_indirect(newptr);
                root->rnode = newptr;
                root->height--;
+                /*
+                 * We have a dilemma here. The node's slot[0] must not be
+                 * NULLed in case there are concurrent lookups expecting to
+                 * find the item. However if this was a bottom-level node,
+                 * then it may be subject to the slot pointer being visible
+                 * to callers dereferencing it. If item corresponding to
+                 * slot[0] is subsequently deleted, these callers would expect
+                 * their slot to become empty sooner or later.
+                 *
+                 * For example, lockless pagecache will look up a slot, deref
+                 * the page pointer, and if the page is 0 refcount it means it
+                 * was concurrently deleted from pagecache so try the deref
+                 * again. Fortunately there is already a requirement for logic
+                 * to retry the entire slot lookup -- the indirect pointer
+                 * problem (replacing direct root node with an indirect pointer
+                 * also results in a stale slot). So tag the slot as indirect
+                 * to force callers to retry.
+                 */
+                if (root->height == 0)
+                        *((unsigned long *)&to_free->slots[0]) |=
+                                                RADIX_TREE_INDIRECT_PTR;
                radix_tree_node_free(to_free);
        }
 }
@@ -1254,7 +1288,7 @@ void *radix_tree_delete(struct radix_tree_root *root, unsigned long index)
                root->rnode = NULL;
                goto out;
        }
-        slot = radix_tree_indirect_to_ptr(slot);
+        slot = indirect_to_ptr(slot);
        shift = (height - 1) * RADIX_TREE_MAP_SHIFT;
        pathp->node = NULL;
@@ -1296,8 +1330,7 @@ void *radix_tree_delete(struct radix_tree_root *root, unsigned long index)
                        radix_tree_node_free(to_free);
                if (pathp->node->count) {
-                        if (pathp->node ==
+                        if (pathp->node == indirect_to_ptr(root->rnode))
-                                        radix_tree_indirect_to_ptr(root->rnode))
                                radix_tree_shrink(root);
                        goto out;
                }
diff --git a/mm/filemap.c b/mm/filemap.c
index 61ba5e405791..ea89840fc65f 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -644,7 +644,9 @@ repeat:
        pagep = radix_tree_lookup_slot(&mapping->page_tree, offset);
        if (pagep) {
                page = radix_tree_deref_slot(pagep);
-                if (unlikely(!page || page == RADIX_TREE_RETRY))
+                if (unlikely(!page))
+                        goto out;
+                if (radix_tree_deref_retry(page))
                        goto repeat;
                if (!page_cache_get_speculative(page))
@@ -660,6 +662,7 @@ repeat:
                        goto repeat;
                }
        }
+out:
        rcu_read_unlock();
        return page;
@@ -777,12 +780,11 @@ repeat:
                page = radix_tree_deref_slot((void **)pages[i]);
                if (unlikely(!page))
                        continue;
-                /*
+                if (radix_tree_deref_retry(page)) {
-                 * this can only trigger if nr_found == 1, making livelock
+                        if (ret)
-                 * a non issue.
+                                start = pages[ret-1]->index;
-                 */
-                if (unlikely(page == RADIX_TREE_RETRY))
                        goto restart;
+                }
                if (!page_cache_get_speculative(page))
                        goto repeat;
@@ -830,11 +832,7 @@ repeat:
                page = radix_tree_deref_slot((void **)pages[i]);
                if (unlikely(!page))
                        continue;
-                /*
+                if (radix_tree_deref_retry(page))
-                 * this can only trigger if nr_found == 1, making livelock
-                 * a non issue.
-                 */
-                if (unlikely(page == RADIX_TREE_RETRY))
                        goto restart;
                if (page->mapping == NULL || page->index != index)
@@ -887,11 +885,7 @@ repeat:
                page = radix_tree_deref_slot((void **)pages[i]);
                if (unlikely(!page))
                        continue;
-                /*
+                if (radix_tree_deref_retry(page))
-                 * this can only trigger if nr_found == 1, making livelock
-                 * a non issue.
-                 */
-                if (unlikely(page == RADIX_TREE_RETRY))
                        goto restart;
                if (!page_cache_get_speculative(page))
@@ -1029,6 +1023,9 @@ find_page:
                                goto page_not_up_to_date;
                        if (!trylock_page(page))
                                goto page_not_up_to_date;
+                        /* Did it get truncated before we got the lock? */
+                        if (!page->mapping)
+                                goto page_not_up_to_date_locked;
                        if (!mapping->a_ops->is_partially_uptodate(page,
                                                                desc, offset))
                                goto page_not_up_to_date_locked;
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 9a99cfaf0a19..2efa8ea07ff7 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4208,15 +4208,17 @@ static struct mem_cgroup *mem_cgroup_alloc(void)
        memset(mem, 0, size);
        mem->stat = alloc_percpu(struct mem_cgroup_stat_cpu);
-        if (!mem->stat) {
+        if (!mem->stat)
-                if (size < PAGE_SIZE)
+                goto out_free;
-                        kfree(mem);
-                else
-                        vfree(mem);
-                mem = NULL;
-        }
        spin_lock_init(&mem->pcp_counter_lock);
        return mem;
+out_free:
+        if (size < PAGE_SIZE)
+                kfree(mem);
+        else
+                vfree(mem);
+        return NULL;
 }
 /*
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 2d1bf7cf8851..4c5133873097 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -211,6 +211,7 @@ success:
        mmu_notifier_invalidate_range_end(mm, start, end);
        vm_stat_account(mm, oldflags, vma->vm_file, -nrpages);
        vm_stat_account(mm, newflags, vma->vm_file, nrpages);
+        perf_event_mmap(vma);
        return 0;
 fail:
@@ -299,7 +300,6 @@ SYSCALL_DEFINE3(mprotect, unsigned long, start, size_t, len,
                error = mprotect_fixup(vma, &prev, nstart, tmp, newflags);
                if (error)
                        goto out;
-                perf_event_mmap(vma);
                nstart = tmp;
                if (nstart < prev->vm_end)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index b8a6fdc21312..d31d7ce52c0e 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -913,7 +913,7 @@ keep_lumpy:
         * back off and wait for congestion to clear because further reclaim
         * will encounter the same problem
         */
-        if (nr_dirty == nr_congested)
+        if (nr_dirty == nr_congested && nr_dirty != 0)
                zone_set_flag(zone, ZONE_CONGESTED);
        free_page_list(&free_pages);
diff --git a/security/Kconfig b/security/Kconfig
index bd72ae623494..e80da955e687 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -39,6 +39,18 @@ config KEYS_DEBUG_PROC_KEYS
          If you are unsure as to whether this is required, answer N.
+config SECURITY_DMESG_RESTRICT
+        bool "Restrict unprivileged access to the kernel syslog"
+        default n
+        help
+          This enforces restrictions on unprivileged users reading the kernel
+          syslog via dmesg(8).
+          If this option is not selected, no restrictions will be enforced
+          unless the dmesg_restrict sysctl is explicitly set to (1).
+          If you are unsure how to answer this question, answer N.
 config SECURITY
        bool "Enable different security models"
        depends on SYSFS
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index cf1de4462ccd..b7106f192b75 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -922,7 +922,7 @@ static int __init apparmor_init(void)
        error = register_security(&apparmor_ops);
        if (error) {
                AA_ERROR("Unable to register AppArmor\n");
-                goto register_security_out;
+                goto set_init_cxt_out;
        }
        /* Report that AppArmor successfully initialized */
@@ -936,6 +936,9 @@ static int __init apparmor_init(void)
        return error;
+set_init_cxt_out:
+        aa_free_task_context(current->real_cred->security);
 register_security_out:
        aa_free_root_ns();
@@ -944,7 +947,6 @@ alloc_out:
        apparmor_enabled = 0;
        return error;
 }
 security_initcall(apparmor_init);
diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c
index 52cc865f1464..4f0eadee78b8 100644
--- a/security/apparmor/policy.c
+++ b/security/apparmor/policy.c
@@ -306,7 +306,7 @@ static struct aa_namespace *alloc_namespace(const char *prefix,
        return ns;
 fail_unconfined:
-        kzfree(ns->base.name);
+        kzfree(ns->base.hname);
 fail_ns:
        kzfree(ns);
        return NULL;
diff --git a/security/commoncap.c b/security/commoncap.c
index 5e632b4857e4..04b80f9912bf 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -895,6 +895,8 @@ int cap_syslog(int type, bool from_file)
 {
        if (type != SYSLOG_ACTION_OPEN && from_file)
                return 0;
+        if (dmesg_restrict && !capable(CAP_SYS_ADMIN))
+                return -EPERM;
        if ((type != SYSLOG_ACTION_READ_ALL &&
             type != SYSLOG_ACTION_SIZE_BUFFER) && !capable(CAP_SYS_ADMIN))
                return -EPERM;
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 122ec9dc4853..26aff6bf9e50 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -8,7 +8,11 @@ perf-trace - Read perf.data (created by perf record) and display trace output
 SYNOPSIS
 --------
 [verse]
-'perf trace' {record <script> | report <script> [args] }
+'perf trace' [<options>]
+'perf trace' [<options>] record <script> [<record-options>] <command>
+'perf trace' [<options>] report <script> [script-args]
+'perf trace' [<options>] <script> <required-script-args> [<record-options>] <command>
+'perf trace' [<options>] <top-script> [script-args]
 DESCRIPTION
 -----------
@@ -24,23 +28,53 @@ There are several variants of perf trace:
  available via 'perf trace -l').  The following variants allow you to
  record and run those scripts:
-  'perf trace record <script>' to record the events required for 'perf
+  'perf trace record <script> <command>' to record the events required
-  trace report'.  <script> is the name displayed in the output of
+  for 'perf trace report'.  <script> is the name displayed in the
-  'perf trace --list' i.e. the actual script name minus any language
+  output of 'perf trace --list' i.e. the actual script name minus any
-  extension.
+  language extension.  If <command> is not specified, the events are
+  recorded using the -a (system-wide) 'perf record' option.
-  'perf trace report <script>' to run and display the results of
+  'perf trace report <script> [args]' to run and display the results
-  <script>.  <script> is the name displayed in the output of 'perf
+  of <script>.  <script> is the name displayed in the output of 'perf
  trace --list' i.e. the actual script name minus any language
  extension.  The perf.data output from a previous run of 'perf trace
  record <script>' is used and should be present for this command to
-  succeed.
+  succeed.  [args] refers to the (mainly optional) args expected by
+  the script.
+  'perf trace <script> <required-script-args> <command>' to both
+  record the events required for <script> and to run the <script>
+  using 'live-mode' i.e. without writing anything to disk.  <script>
+  is the name displayed in the output of 'perf trace --list' i.e. the
+  actual script name minus any language extension.  If <command> is
+  not specified, the events are recorded using the -a (system-wide)
+  'perf record' option.  If <script> has any required args, they
+  should be specified before <command>.  This mode doesn't allow for
+  optional script args to be specified; if optional script args are
+  desired, they can be specified using separate 'perf trace record'
+  and 'perf trace report' commands, with the stdout of the record step
+  piped to the stdin of the report script, using the '-o -' and '-i -'
+  options of the corresponding commands.
+  'perf trace <top-script>' to both record the events required for
+  <top-script> and to run the <top-script> using 'live-mode'
+  i.e. without writing anything to disk.  <top-script> is the name
+  displayed in the output of 'perf trace --list' i.e. the actual
+  script name minus any language extension; a <top-script> is defined
+  as any script name ending with the string 'top'.
+  [<record-options>] can be passed to the record steps of 'perf trace
+  record' and 'live-mode' variants; this isn't possible however for
+  <top-script> 'live-mode' or 'perf trace report' variants.
  See the 'SEE ALSO' section for links to language-specific
  information on how to write and run your own trace scripts.
 OPTIONS
 -------
+<command>...::
+        Any command you can specify in a shell.
 -D::
 --dump-raw-trace=::
        Display verbose dump of the trace data.
@@ -64,6 +98,13 @@ OPTIONS
        Generate perf-trace.[ext] starter script for given language,
        using current perf.data.
+-a::
+        Force system-wide collection.  Scripts run without a <command>
+        normally use -a by default, while scripts run with a <command>
+        normally don't - this option allows the latter to be run in
+        system-wide mode.
 SEE ALSO
 --------
 linkperf:perf-record[1], linkperf:perf-trace-perl[1],
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 4e75583ddd6d..93bd2ff001fb 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -790,7 +790,7 @@ static const char * const record_usage[] = {
 static bool force, append_file;
-static const struct option options[] = {
+const struct option record_options[] = {
        OPT_CALLBACK('e', "event", NULL, "event",
                     "event selector. use 'perf list' to list available events",
                     parse_events),
@@ -839,16 +839,16 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
 {
        int i, j, err = -ENOMEM;
-        argc = parse_options(argc, argv, options, record_usage,
+        argc = parse_options(argc, argv, record_options, record_usage,
                            PARSE_OPT_STOP_AT_NON_OPTION);
        if (!argc && target_pid == -1 && target_tid == -1 &&
                !system_wide && !cpu_list)
-                usage_with_options(record_usage, options);
+                usage_with_options(record_usage, record_options);
        if (force && append_file) {
                fprintf(stderr, "Can't overwrite and append at the same time."
                                " You need to choose between -f and -A");
-                usage_with_options(record_usage, options);
+                usage_with_options(record_usage, record_options);
        } else if (append_file) {
                write_mode = WRITE_APPEND;
        } else {
@@ -871,7 +871,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
                if (thread_num <= 0) {
                        fprintf(stderr, "Can't find all threads of pid %d\n",
                                        target_pid);
-                        usage_with_options(record_usage, options);
+                        usage_with_options(record_usage, record_options);
                }
        } else {
                all_tids=malloc(sizeof(pid_t));
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index b513e40974f4..dd625808c2a5 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -69,7 +69,6 @@ static int			target_tid			=     -1;
 static pid_t                    *all_tids                       =      NULL;
 static int                      thread_num                      =      0;
 static bool                     inherit                         =  false;
-static int                      profile_cpu                     =     -1;
 static int                      nr_cpus                         =      0;
 static int                      realtime_prio                   =      0;
 static bool                     group                           =  false;
@@ -558,13 +557,13 @@ static void print_sym_table(void)
        else
                printf(" (all");
-        if (profile_cpu != -1)
+        if (cpu_list)
-                printf(", cpu: %d)\n", profile_cpu);
+                printf(", CPU%s: %s)\n", nr_cpus > 1 ? "s" : "", cpu_list);
        else {
                if (target_tid != -1)
                        printf(")\n");
                else
-                        printf(", %d CPUs)\n", nr_cpus);
+                        printf(", %d CPU%s)\n", nr_cpus, nr_cpus > 1 ? "s" : "");
        }
        printf("%-*.*s\n", win_width, win_width, graph_dotted_line);
@@ -1187,11 +1186,10 @@ int group_fd;
 static void start_counter(int i, int counter)
 {
        struct perf_event_attr *attr;
-        int cpu;
+        int cpu = -1;
        int thread_index;
-        cpu = profile_cpu;
+        if (target_tid == -1)
-        if (target_tid == -1 && profile_cpu == -1)
                cpu = cpumap[i];
        attr = attrs + counter;
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 2f8df45c4dcb..86cfe3800e6b 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -10,6 +10,7 @@
 #include "util/symbol.h"
 #include "util/thread.h"
 #include "util/trace-event.h"
+#include "util/parse-options.h"
 #include "util/util.h"
 static char const               *script_name;
@@ -17,6 +18,7 @@ static char const		*generate_script_lang;
 static bool                     debug_mode;
 static u64                      last_timestamp;
 static u64                      nr_unordered;
+extern const struct option      record_options[];
 static int default_start_script(const char *script __unused,
                                int argc __unused,
@@ -328,7 +330,7 @@ static struct script_desc *script_desc__new(const char *name)
 {
        struct script_desc *s = zalloc(sizeof(*s));
-        if (s != NULL)
+        if (s != NULL && name)
                s->name = strdup(name);
        return s;
@@ -337,6 +339,8 @@ static struct script_desc *script_desc__new(const char *name)
 static void script_desc__delete(struct script_desc *s)
 {
        free(s->name);
+        free(s->half_liner);
+        free(s->args);
        free(s);
 }
@@ -537,8 +541,40 @@ static char *get_script_path(const char *script_root, const char *suffix)
        return path;
 }
+static bool is_top_script(const char *script_path)
+{
+        return ends_with((char *)script_path, "top") == NULL ? false : true;
+}
+static int has_required_arg(char *script_path)
+{
+        struct script_desc *desc;
+        int n_args = 0;
+        char *p;
+        desc = script_desc__new(NULL);
+        if (read_script_info(desc, script_path))
+                goto out;
+        if (!desc->args)
+                goto out;
+        for (p = desc->args; *p; p++)
+                if (*p == '<')
+                        n_args++;
+out:
+        script_desc__delete(desc);
+        return n_args;
+}
 static const char * const trace_usage[] = {
-        "perf trace [<options>] <command>",
+        "perf trace [<options>]",
+        "perf trace [<options>] record <script> [<record-options>] <command>",
+        "perf trace [<options>] report <script> [script-args]",
+        "perf trace [<options>] <script> [<record-options>] <command>",
+        "perf trace [<options>] <top-script> [script-args]",
        NULL
 };
@@ -564,50 +600,81 @@ static const struct option options[] = {
        OPT_END()
 };
+static bool have_cmd(int argc, const char **argv)
+{
+        char **__argv = malloc(sizeof(const char *) * argc);
+        if (!__argv)
+                die("malloc");
+        memcpy(__argv, argv, sizeof(const char *) * argc);
+        argc = parse_options(argc, (const char **)__argv, record_options,
+                             NULL, PARSE_OPT_STOP_AT_NON_OPTION);
+        free(__argv);
+        return argc != 0;
+}
 int cmd_trace(int argc, const char **argv, const char *prefix __used)
 {
+        char *rec_script_path = NULL;
+        char *rep_script_path = NULL;
        struct perf_session *session;
-        const char *suffix = NULL;
+        char *script_path = NULL;
        const char **__argv;
-        char *script_path;
+        bool system_wide;
-        int i, err;
+        int i, j, err;
-        if (argc >= 2 && strncmp(argv[1], "rec", strlen("rec")) == 0) {
+        setup_scripting();
-                if (argc < 3) {
-                        fprintf(stderr,
+        argc = parse_options(argc, argv, options, trace_usage,
-                                "Please specify a record script\n");
+                             PARSE_OPT_STOP_AT_NON_OPTION);
-                        return -1;
-                }
+        if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
-                suffix = RECORD_SUFFIX;
+                rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
+                if (!rec_script_path)
+                        return cmd_record(argc, argv, NULL);
        }
-        if (argc >= 2 && strncmp(argv[1], "rep", strlen("rep")) == 0) {
+        if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) {
-                if (argc < 3) {
+                rep_script_path = get_script_path(argv[1], REPORT_SUFFIX);
+                if (!rep_script_path) {
                        fprintf(stderr,
-                                "Please specify a report script\n");
+                                "Please specify a valid report script"
+                                "(see 'perf trace -l' for listing)\n");
                        return -1;
                }
-                suffix = REPORT_SUFFIX;
        }
        /* make sure PERF_EXEC_PATH is set for scripts */
        perf_set_argv_exec_path(perf_exec_path());
-        if (!suffix && argc >= 2 && strncmp(argv[1], "-", strlen("-")) != 0) {
+        if (argc && !script_name && !rec_script_path && !rep_script_path) {
-                char *record_script_path, *report_script_path;
                int live_pipe[2];
+                int rep_args;
                pid_t pid;
-                record_script_path = get_script_path(argv[1], RECORD_SUFFIX);
+                rec_script_path = get_script_path(argv[0], RECORD_SUFFIX);
-                if (!record_script_path) {
+                rep_script_path = get_script_path(argv[0], REPORT_SUFFIX);
-                        fprintf(stderr, "record script not found\n");
-                        return -1;
+                if (!rec_script_path && !rep_script_path) {
+                        fprintf(stderr, " Couldn't find script %s\n\n See perf"
+                                " trace -l for available scripts.\n", argv[0]);
+                        usage_with_options(trace_usage, options);
                }
-                report_script_path = get_script_path(argv[1], REPORT_SUFFIX);
+                if (is_top_script(argv[0])) {
-                if (!report_script_path) {
+                        rep_args = argc - 1;
-                        fprintf(stderr, "report script not found\n");
+                } else {
-                        return -1;
+                        int rec_args;
+                        rep_args = has_required_arg(rep_script_path);
+                        rec_args = (argc - 1) - rep_args;
+                        if (rec_args < 0) {
+                                fprintf(stderr, " %s script requires options."
+                                        "\n\n See perf trace -l for available "
+                                        "scripts and options.\n", argv[0]);
+                                usage_with_options(trace_usage, options);
+                        }
                }
                if (pipe(live_pipe) < 0) {
@@ -622,60 +689,84 @@ int cmd_trace(int argc, const char **argv, const char *prefix __used)
                }
                if (!pid) {
+                        system_wide = true;
+                        j = 0;
                        dup2(live_pipe[1], 1);
                        close(live_pipe[0]);
-                        __argv = malloc(6 * sizeof(const char *));
+                        if (!is_top_script(argv[0]))
-                        __argv[0] = "/bin/sh";
+                                system_wide = !have_cmd(argc - rep_args,
-                        __argv[1] = record_script_path;
+                                                        &argv[rep_args]);
-                        __argv[2] = "-q";
-                        __argv[3] = "-o";
+                        __argv = malloc((argc + 6) * sizeof(const char *));
-                        __argv[4] = "-";
+                        if (!__argv)
-                        __argv[5] = NULL;
+                                die("malloc");
+                        __argv[j++] = "/bin/sh";
+                        __argv[j++] = rec_script_path;
+                        if (system_wide)
+                                __argv[j++] = "-a";
+                        __argv[j++] = "-q";
+                        __argv[j++] = "-o";
+                        __argv[j++] = "-";
+                        for (i = rep_args + 1; i < argc; i++)
+                                __argv[j++] = argv[i];
+                        __argv[j++] = NULL;
                        execvp("/bin/sh", (char **)__argv);
+                        free(__argv);
                        exit(-1);
                }
                dup2(live_pipe[0], 0);
                close(live_pipe[1]);
-                __argv = malloc((argc + 3) * sizeof(const char *));
+                __argv = malloc((argc + 4) * sizeof(const char *));
-                __argv[0] = "/bin/sh";
+                if (!__argv)
-                __argv[1] = report_script_path;
+                        die("malloc");
-                for (i = 2; i < argc; i++)
+                j = 0;
-                        __argv[i] = argv[i];
+                __argv[j++] = "/bin/sh";
-                __argv[i++] = "-i";
+                __argv[j++] = rep_script_path;
-                __argv[i++] = "-";
+                for (i = 1; i < rep_args + 1; i++)
-                __argv[i++] = NULL;
+                        __argv[j++] = argv[i];
+                __argv[j++] = "-i";
+                __argv[j++] = "-";
+                __argv[j++] = NULL;
                execvp("/bin/sh", (char **)__argv);
+                free(__argv);
                exit(-1);
        }
-        if (suffix) {
+        if (rec_script_path)
-                script_path = get_script_path(argv[2], suffix);
+                script_path = rec_script_path;
-                if (!script_path) {
+        if (rep_script_path)
-                        fprintf(stderr, "script not found\n");
+                script_path = rep_script_path;
-                        return -1;
-                }
+        if (script_path) {
+                system_wide = false;
-                __argv = malloc((argc + 1) * sizeof(const char *));
+                j = 0;
-                __argv[0] = "/bin/sh";
-                __argv[1] = script_path;
+                if (rec_script_path)
-                for (i = 3; i < argc; i++)
+                        system_wide = !have_cmd(argc - 1, &argv[1]);
-                        __argv[i - 1] = argv[i];
-                __argv[argc - 1] = NULL;
+                __argv = malloc((argc + 2) * sizeof(const char *));
+                if (!__argv)
+                        die("malloc");
+                __argv[j++] = "/bin/sh";
+                __argv[j++] = script_path;
+                if (system_wide)
+                        __argv[j++] = "-a";
+                for (i = 2; i < argc; i++)
+                        __argv[j++] = argv[i];
+                __argv[j++] = NULL;
                execvp("/bin/sh", (char **)__argv);
+                free(__argv);
                exit(-1);
        }
-        setup_scripting();
-        argc = parse_options(argc, argv, options, trace_usage,
-                             PARSE_OPT_STOP_AT_NON_OPTION);
        if (symbol__init() < 0)
                return -1;
        if (!script_name)
diff --git a/tools/perf/scripts/perl/bin/failed-syscalls-record b/tools/perf/scripts/perl/bin/failed-syscalls-record
index eb5846bcb565..8104895a7b67 100644
--- a/tools/perf/scripts/perl/bin/failed-syscalls-record
+++ b/tools/perf/scripts/perl/bin/failed-syscalls-record
@@ -1,2 +1,2 @@
 #!/bin/bash
-perf record -a -e raw_syscalls:sys_exit $@
+perf record -e raw_syscalls:sys_exit $@
diff --git a/tools/perf/scripts/perl/bin/rw-by-file-record b/tools/perf/scripts/perl/bin/rw-by-file-record
index 5bfaae5a6cba..33efc8673aae 100644
--- a/tools/perf/scripts/perl/bin/rw-by-file-record
+++ b/tools/perf/scripts/perl/bin/rw-by-file-record
@@ -1,3 +1,3 @@
 #!/bin/bash
-perf record -a -e syscalls:sys_enter_read -e syscalls:sys_enter_write $@
+perf record -e syscalls:sys_enter_read -e syscalls:sys_enter_write $@
diff --git a/tools/perf/scripts/perl/bin/rw-by-pid-record b/tools/perf/scripts/perl/bin/rw-by-pid-record
index 6e0b2f7755ac..7cb9db230448 100644
--- a/tools/perf/scripts/perl/bin/rw-by-pid-record
+++ b/tools/perf/scripts/perl/bin/rw-by-pid-record
@@ -1,2 +1,2 @@
 #!/bin/bash
-perf record -a -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write $@
+perf record -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write $@
diff --git a/tools/perf/scripts/perl/bin/rwtop-record b/tools/perf/scripts/perl/bin/rwtop-record
index 6e0b2f7755ac..7cb9db230448 100644
--- a/tools/perf/scripts/perl/bin/rwtop-record
+++ b/tools/perf/scripts/perl/bin/rwtop-record
@@ -1,2 +1,2 @@
 #!/bin/bash
-perf record -a -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write $@
+perf record -e syscalls:sys_enter_read -e syscalls:sys_exit_read -e syscalls:sys_enter_write -e syscalls:sys_exit_write $@
diff --git a/tools/perf/scripts/perl/bin/wakeup-latency-record b/tools/perf/scripts/perl/bin/wakeup-latency-record
index 9f2acaaae9f0..464251a1bd7e 100644
--- a/tools/perf/scripts/perl/bin/wakeup-latency-record
+++ b/tools/perf/scripts/perl/bin/wakeup-latency-record
@@ -1,5 +1,5 @@
 #!/bin/bash
-perf record -a -e sched:sched_switch -e sched:sched_wakeup $@
+perf record -e sched:sched_switch -e sched:sched_wakeup $@
diff --git a/tools/perf/scripts/perl/bin/workqueue-stats-record b/tools/perf/scripts/perl/bin/workqueue-stats-record
index 85301f2471ff..8edda9078d5d 100644
--- a/tools/perf/scripts/perl/bin/workqueue-stats-record
+++ b/tools/perf/scripts/perl/bin/workqueue-stats-record
@@ -1,2 +1,2 @@
 #!/bin/bash
-perf record -a -e workqueue:workqueue_creation -e workqueue:workqueue_destruction -e workqueue:workqueue_execution -e workqueue:workqueue_insertion $@
+perf record -e workqueue:workqueue_creation -e workqueue:workqueue_destruction -e workqueue:workqueue_execution -e workqueue:workqueue_insertion $@
diff --git a/tools/perf/scripts/python/bin/failed-syscalls-by-pid-record b/tools/perf/scripts/python/bin/failed-syscalls-by-pid-record
index eb5846bcb565..8104895a7b67 100644
--- a/tools/perf/scripts/python/bin/failed-syscalls-by-pid-record
+++ b/tools/perf/scripts/python/bin/failed-syscalls-by-pid-record
@@ -1,2 +1,2 @@
 #!/bin/bash
-perf record -a -e raw_syscalls:sys_exit $@
+perf record -e raw_syscalls:sys_exit $@
diff --git a/tools/perf/scripts/python/bin/futex-contention-record b/tools/perf/scripts/python/bin/futex-contention-record
index 5ecbb433caf4..b1495c9a9b20 100644
--- a/tools/perf/scripts/python/bin/futex-contention-record
+++ b/tools/perf/scripts/python/bin/futex-contention-record
@@ -1,2 +1,2 @@
 #!/bin/bash
-perf record -a -e syscalls:sys_enter_futex -e syscalls:sys_exit_futex $@
+perf record -e syscalls:sys_enter_futex -e syscalls:sys_exit_futex $@
diff --git a/tools/perf/scripts/python/bin/netdev-times-record b/tools/perf/scripts/python/bin/netdev-times-record
index d931a828126b..558754b840a9 100644
--- a/tools/perf/scripts/python/bin/netdev-times-record
+++ b/tools/perf/scripts/python/bin/netdev-times-record
@@ -1,5 +1,5 @@
 #!/bin/bash
-perf record -a -e net:net_dev_xmit -e net:net_dev_queue         \
+perf record -e net:net_dev_xmit -e net:net_dev_queue            \
                -e net:netif_receive_skb -e net:netif_rx                \
                -e skb:consume_skb -e skb:kfree_skb                     \
                -e skb:skb_copy_datagram_iovec -e napi:napi_poll        \
diff --git a/tools/perf/scripts/python/bin/sched-migration-record b/tools/perf/scripts/python/bin/sched-migration-record
index 17a3e9bd9e8f..7493fddbe995 100644
--- a/tools/perf/scripts/python/bin/sched-migration-record
+++ b/tools/perf/scripts/python/bin/sched-migration-record
@@ -1,2 +1,2 @@
 #!/bin/bash
-perf record -m 16384 -a -e sched:sched_wakeup -e sched:sched_wakeup_new -e sched:sched_switch -e sched:sched_migrate_task $@
+perf record -m 16384 -e sched:sched_wakeup -e sched:sched_wakeup_new -e sched:sched_switch -e sched:sched_migrate_task $@
diff --git a/tools/perf/scripts/python/bin/sctop-record b/tools/perf/scripts/python/bin/sctop-record
index 1fc5998b721d..4efbfaa7f6a5 100644
--- a/tools/perf/scripts/python/bin/sctop-record
+++ b/tools/perf/scripts/python/bin/sctop-record
@@ -1,2 +1,2 @@
 #!/bin/bash
-perf record -a -e raw_syscalls:sys_enter $@
+perf record -e raw_syscalls:sys_enter $@
diff --git a/tools/perf/scripts/python/bin/syscall-counts-by-pid-record b/tools/perf/scripts/python/bin/syscall-counts-by-pid-record
index 1fc5998b721d..4efbfaa7f6a5 100644
--- a/tools/perf/scripts/python/bin/syscall-counts-by-pid-record
+++ b/tools/perf/scripts/python/bin/syscall-counts-by-pid-record
@@ -1,2 +1,2 @@
 #!/bin/bash
-perf record -a -e raw_syscalls:sys_enter $@
+perf record -e raw_syscalls:sys_enter $@
diff --git a/tools/perf/scripts/python/bin/syscall-counts-record b/tools/perf/scripts/python/bin/syscall-counts-record
index 1fc5998b721d..4efbfaa7f6a5 100644
--- a/tools/perf/scripts/python/bin/syscall-counts-record
+++ b/tools/perf/scripts/python/bin/syscall-counts-record
@@ -1,2 +1,2 @@
 #!/bin/bash
-perf record -a -e raw_syscalls:sys_enter $@
+perf record -e raw_syscalls:sys_enter $@
diff --git a/tools/perf/util/ui/util.c b/tools/perf/util/ui/util.c
index 9706d9d40279..056c69521a38 100644
--- a/tools/perf/util/ui/util.c
+++ b/tools/perf/util/ui/util.c
@@ -104,9 +104,10 @@ out_destroy_form:
        return rc;
 }
+static const char yes[] = "Yes", no[] = "No";
 bool ui__dialog_yesno(const char *msg)
 {
        /* newtWinChoice should really be accepting const char pointers... */
-        char yes[] = "Yes", no[] = "No";
+        return newtWinChoice(NULL, (char *)yes, (char *)no, (char *)msg) == 1;
-        return newtWinChoice(NULL, yes, no, (char *)msg) == 1;
 }