Merge tag 'v3.12-rc6' into devel

Linux 3.12-rc6

Conflicts:
	drivers/gpio/gpio-lynxpoint.c

20 files changed, 151 insertions, 47 deletions

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index a37a50f575a2..db50b626be98 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -296,10 +296,15 @@ archprepare:
 # Convert bzImage to zImage
 bzImage: zImage
 
-zImage Image xipImage bootpImage uImage: vmlinux
+BOOT_TARGETS    = zImage Image xipImage bootpImage uImage
+INSTALL_TARGETS = zinstall uinstall install
+
+PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
+
+$(BOOT_TARGETS): vmlinux
         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 
-zinstall uinstall install: vmlinux
+$(INSTALL_TARGETS):
         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 
 %.dtb: | scripts
diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile
index 84aa2caf07ed..ec2f8065f955 100644
--- a/arch/arm/boot/Makefile
+++ b/arch/arm/boot/Makefile
@@ -95,24 +95,24 @@ initrd:
         @test "$(INITRD)" != "" || \
         (echo You must specify INITRD; exit -1)
 
-install: $(obj)/Image
-        $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
+install:
+        $(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
         $(obj)/Image System.map "$(INSTALL_PATH)"
 
-zinstall: $(obj)/zImage
-        $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
+zinstall:
+        $(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
         $(obj)/zImage System.map "$(INSTALL_PATH)"
 
-uinstall: $(obj)/uImage
-        $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
+uinstall:
+        $(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
         $(obj)/uImage System.map "$(INSTALL_PATH)"
 
 zi:
-        $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
+        $(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
         $(obj)/zImage System.map "$(INSTALL_PATH)"
 
 i:
-        $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
+        $(CONFIG_SHELL) $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" \
         $(obj)/Image System.map "$(INSTALL_PATH)"
 
 subdir-     := bootp compressed dts
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 7d7cc777ff7b..bbac42a78ce5 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -96,6 +96,11 @@
                              <1 14 0xf08>,
                              <1 11 0xf08>,
                              <1 10 0xf08>;
+                /* Unfortunately we need this since some versions of U-Boot
+                 * on Exynos don't set the CNTFRQ register, so we need the
+                 * value from DT.
+                 */
+                clock-frequency = <24000000>;
         };
 
         mct@101C0000 {
diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts b/arch/arm/boot/dts/omap3-beagle-xm.dts
index 0c514dc8460c..2816bf612672 100644
--- a/arch/arm/boot/dts/omap3-beagle-xm.dts
+++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
@@ -11,7 +11,7 @@
 
 / {
         model = "TI OMAP3 BeagleBoard xM";
-        compatible = "ti,omap3-beagle-xm", "ti,omap3-beagle", "ti,omap3";
+        compatible = "ti,omap3-beagle-xm", "ti,omap36xx", "ti,omap3";
 
         cpus {
                 cpu@0 {
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 7d95cda1fae4..b41bd57f4328 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -108,7 +108,7 @@
                         #address-cells = <1>;
                         #size-cells = <0>;
                         pinctrl-single,register-width = <16>;
-                        pinctrl-single,function-mask = <0x7f1f>;
+                        pinctrl-single,function-mask = <0xff1f>;
                 };
 
                 omap3_pmx_wkup: pinmux@0x48002a00 {
@@ -117,7 +117,7 @@
                         #address-cells = <1>;
                         #size-cells = <0>;
                         pinctrl-single,register-width = <16>;
-                        pinctrl-single,function-mask = <0x7f1f>;
+                        pinctrl-single,function-mask = <0xff1f>;
                 };
 
                 gpio1: gpio@48310000 {
diff --git a/arch/arm/boot/install.sh b/arch/arm/boot/install.sh
index 06ea7d42ce8e..2a45092a40e3 100644
--- a/arch/arm/boot/install.sh
+++ b/arch/arm/boot/install.sh
@@ -20,6 +20,20 @@
 #   $4 - default install path (blank if root directory)
 #
 
+verify () {
+        if [ ! -f "$1" ]; then
+                echo ""                                                   1>&2
+                echo " *** Missing file: $1"                              1>&2
+                echo ' *** You need to run "make" before "make install".' 1>&2
+                echo ""                                                   1>&2
+                exit 1
+        fi
+}
+
+# Make sure the files actually exist
+verify "$2"
+verify "$3"
+
 # User may have a custom install script
 if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
 if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
diff --git a/arch/arm/common/mcpm_entry.c b/arch/arm/common/mcpm_entry.c
index 370236dd1a03..990250965f2c 100644
--- a/arch/arm/common/mcpm_entry.c
+++ b/arch/arm/common/mcpm_entry.c
@@ -51,7 +51,8 @@ void mcpm_cpu_power_down(void)
 {
         phys_reset_t phys_reset;
 
-        BUG_ON(!platform_ops);
+        if (WARN_ON_ONCE(!platform_ops || !platform_ops->power_down))
+                return;
         BUG_ON(!irqs_disabled());
 
         /*
@@ -93,7 +94,8 @@ void mcpm_cpu_suspend(u64 expected_residency)
 {
         phys_reset_t phys_reset;
 
-        BUG_ON(!platform_ops);
+        if (WARN_ON_ONCE(!platform_ops || !platform_ops->suspend))
+                return;
         BUG_ON(!irqs_disabled());
 
         /* Very similar to mcpm_cpu_power_down() */
diff --git a/arch/arm/common/sharpsl_param.c b/arch/arm/common/sharpsl_param.c
index d56c932580eb..025f6ce38596 100644
--- a/arch/arm/common/sharpsl_param.c
+++ b/arch/arm/common/sharpsl_param.c
@@ -15,6 +15,7 @@
 #include <linux/module.h>
 #include <linux/string.h>
 #include <asm/mach/sharpsl_param.h>
+#include <asm/memory.h>
 
 /*
  * Certain hardware parameters determined at the time of device manufacture,
@@ -25,8 +26,10 @@
  */
 #ifdef CONFIG_ARCH_SA1100
 #define PARAM_BASE      0xe8ffc000
+#define param_start(x)  (void *)(x)
 #else
 #define PARAM_BASE      0xa0000a00
+#define param_start(x)  __va(x)
 #endif
 #define MAGIC_CHG(a,b,c,d) ( ( d << 24 ) | ( c << 16 )  | ( b << 8 ) | a )
 
@@ -41,7 +44,7 @@ EXPORT_SYMBOL(sharpsl_param);
 
 void sharpsl_save_param(void)
 {
-        memcpy(&sharpsl_param, (void *)PARAM_BASE, sizeof(struct sharpsl_param_info));
+        memcpy(&sharpsl_param, param_start(PARAM_BASE), sizeof(struct sharpsl_param_info));
 
         if (sharpsl_param.comadj_keyword != COMADJ_MAGIC)
                 sharpsl_param.comadj=-1;
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index d3db39860b9c..59ceae8f3c95 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -31,5 +31,4 @@ generic-y += termbits.h
 generic-y += termios.h
 generic-y += timex.h
 generic-y += trace_clock.h
-generic-y += types.h
 generic-y += unaligned.h
diff --git a/arch/arm/include/asm/jump_label.h b/arch/arm/include/asm/jump_label.h
index bfc198c75913..863c892b4aaa 100644
--- a/arch/arm/include/asm/jump_label.h
+++ b/arch/arm/include/asm/jump_label.h
@@ -16,7 +16,7 @@
 
 static __always_inline bool arch_static_branch(struct static_key *key)
 {
-        asm goto("1:\n\t"
+        asm_volatile_goto("1:\n\t"
                  JUMP_LABEL_NOP "\n\t"
                  ".pushsection __jump_table,  \"aw\"\n\t"
                  ".word 1b, %l[l_yes], %c0\n\t"
diff --git a/arch/arm/include/asm/mcpm.h b/arch/arm/include/asm/mcpm.h
index 0f7b7620e9a5..fc82a88f5b69 100644
--- a/arch/arm/include/asm/mcpm.h
+++ b/arch/arm/include/asm/mcpm.h
@@ -76,8 +76,11 @@ int mcpm_cpu_power_up(unsigned int cpu, unsigned int cluster);
  *
  * This must be called with interrupts disabled.
  *
- * This does not return.  Re-entry in the kernel is expected via
- * mcpm_entry_point.
+ * On success this does not return.  Re-entry in the kernel is expected
+ * via mcpm_entry_point.
+ *
+ * This will return if mcpm_platform_register() has not been called
+ * previously in which case the caller should take appropriate action.
  */
 void mcpm_cpu_power_down(void);
 
@@ -98,8 +101,11 @@ void mcpm_cpu_power_down(void);
  *
  * This must be called with interrupts disabled.
  *
- * This does not return.  Re-entry in the kernel is expected via
- * mcpm_entry_point.
+ * On success this does not return.  Re-entry in the kernel is expected
+ * via mcpm_entry_point.
+ *
+ * This will return if mcpm_platform_register() has not been called
+ * previously in which case the caller should take appropriate action.
  */
 void mcpm_cpu_suspend(u64 expected_residency);
 
diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h
index f1d96d4e8092..73ddd7239b33 100644
--- a/arch/arm/include/asm/syscall.h
+++ b/arch/arm/include/asm/syscall.h
@@ -57,6 +57,9 @@ static inline void syscall_get_arguments(struct task_struct *task,
                                          unsigned int i, unsigned int n,
                                          unsigned long *args)
 {
+        if (n == 0)
+                return;
+
         if (i + n > SYSCALL_MAX_ARGS) {
                 unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i;
                 unsigned int n_bad = n + i - SYSCALL_MAX_ARGS;
@@ -81,6 +84,9 @@ static inline void syscall_set_arguments(struct task_struct *task,
                                          unsigned int i, unsigned int n,
                                          const unsigned long *args)
 {
+        if (n == 0)
+                return;
+
         if (i + n > SYSCALL_MAX_ARGS) {
                 pr_warning("%s called with max args %d, handling only %d\n",
                            __func__, i + n, SYSCALL_MAX_ARGS);
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 2c7cc1e03473..476de57dcef2 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -487,7 +487,26 @@ __fixup_smp:
         mrc     p15, 0, r0, c0, c0, 5   @ read MPIDR
         and     r0, r0, #0xc0000000     @ multiprocessing extensions and
         teq     r0, #0x80000000         @ not part of a uniprocessor system?
-        moveq   pc, lr                  @ yes, assume SMP
+        bne    __fixup_smp_on_up        @ no, assume UP
+
+        @ Core indicates it is SMP. Check for Aegis SOC where a single
+        @ Cortex-A9 CPU is present but SMP operations fault.
+        mov     r4, #0x41000000
+        orr     r4, r4, #0x0000c000
+        orr     r4, r4, #0x00000090
+        teq     r3, r4                  @ Check for ARM Cortex-A9
+        movne   pc, lr                  @ Not ARM Cortex-A9,
+
+        @ If a future SoC *does* use 0x0 as the PERIPH_BASE, then the
+        @ below address check will need to be #ifdef'd or equivalent
+        @ for the Aegis platform.
+        mrc     p15, 4, r0, c15, c0     @ get SCU base address
+        teq     r0, #0x0                @ '0' on actual UP A9 hardware
+        beq     __fixup_smp_on_up       @ So its an A9 UP
+        ldr     r0, [r0, #4]            @ read SCU Config
+        and     r0, r0, #0x3            @ number of CPUs
+        teq     r0, #0x0                @ is 1?
+        movne   pc, lr
 
 __fixup_smp_on_up:
         adr     r0, 1f
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 39c78387ddec..87162e1b94a5 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -129,6 +129,24 @@ DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
         .restart        = omap3xxx_restart,
 MACHINE_END
 
+static const char *omap36xx_boards_compat[] __initdata = {
+        "ti,omap36xx",
+        NULL,
+};
+
+DT_MACHINE_START(OMAP36XX_DT, "Generic OMAP36xx (Flattened Device Tree)")
+        .reserve        = omap_reserve,
+        .map_io         = omap3_map_io,
+        .init_early     = omap3630_init_early,
+        .init_irq       = omap_intc_of_init,
+        .handle_irq     = omap3_intc_handle_irq,
+        .init_machine   = omap_generic_init,
+        .init_late      = omap3_init_late,
+        .init_time      = omap3_sync32k_timer_init,
+        .dt_compat      = omap36xx_boards_compat,
+        .restart        = omap3xxx_restart,
+MACHINE_END
+
 static const char *omap3_gp_boards_compat[] __initdata = {
         "ti,omap3-beagle",
         "timll,omap3-devkit8000",
diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index c3270c0f1fce..f6fe388af989 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -167,38 +167,47 @@ static struct lp55xx_led_config rx51_lp5523_led_config[] = {
                 .name           = "lp5523:kb1",
                 .chan_nr        = 0,
                 .led_current    = 50,
+                .max_current    = 100,
         }, {
                 .name           = "lp5523:kb2",
                 .chan_nr        = 1,
                 .led_current    = 50,
+                .max_current    = 100,
         }, {
                 .name           = "lp5523:kb3",
                 .chan_nr        = 2,
                 .led_current    = 50,
+                .max_current    = 100,
         }, {
                 .name           = "lp5523:kb4",
                 .chan_nr        = 3,
                 .led_current    = 50,
+                .max_current    = 100,
         }, {
                 .name           = "lp5523:b",
                 .chan_nr        = 4,
                 .led_current    = 50,
+                .max_current    = 100,
         }, {
                 .name           = "lp5523:g",
                 .chan_nr        = 5,
                 .led_current    = 50,
+                .max_current    = 100,
         }, {
                 .name           = "lp5523:r",
                 .chan_nr        = 6,
                 .led_current    = 50,
+                .max_current    = 100,
         }, {
                 .name           = "lp5523:kb5",
                 .chan_nr        = 7,
                 .led_current    = 50,
+                .max_current    = 100,
         }, {
                 .name           = "lp5523:kb6",
                 .chan_nr        = 8,
                 .led_current    = 50,
+                .max_current    = 100,
         }
 };
 
diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c
index 64b5a8346982..8b6876c98ce1 100644
--- a/arch/arm/mach-omap2/gpmc-onenand.c
+++ b/arch/arm/mach-omap2/gpmc-onenand.c
@@ -272,9 +272,19 @@ static int omap2_onenand_setup_async(void __iomem *onenand_base)
         struct gpmc_timings t;
         int ret;
 
-        if (gpmc_onenand_data->of_node)
+        if (gpmc_onenand_data->of_node) {
                 gpmc_read_settings_dt(gpmc_onenand_data->of_node,
                                       &onenand_async);
+                if (onenand_async.sync_read || onenand_async.sync_write) {
+                        if (onenand_async.sync_write)
+                                gpmc_onenand_data->flags |=
+                                        ONENAND_SYNC_READWRITE;
+                        else
+                                gpmc_onenand_data->flags |= ONENAND_SYNC_READ;
+                        onenand_async.sync_read = false;
+                        onenand_async.sync_write = false;
+                }
+        }
 
         omap2_onenand_set_async_mode(onenand_base);
 
diff --git a/arch/arm/mach-omap2/mux.h b/arch/arm/mach-omap2/mux.h
index 5d2080ef7923..16f78a990d04 100644
--- a/arch/arm/mach-omap2/mux.h
+++ b/arch/arm/mach-omap2/mux.h
@@ -28,7 +28,7 @@
 #define OMAP_PULL_UP                    (1 << 4)
 #define OMAP_ALTELECTRICALSEL           (1 << 5)
 
-/* 34xx specific mux bit defines */
+/* omap3/4/5 specific mux bit defines */
 #define OMAP_INPUT_EN                   (1 << 8)
 #define OMAP_OFF_EN                     (1 << 9)
 #define OMAP_OFFOUT_EN                  (1 << 10)
@@ -36,8 +36,6 @@
 #define OMAP_OFF_PULL_EN                (1 << 12)
 #define OMAP_OFF_PULL_UP                (1 << 13)
 #define OMAP_WAKEUP_EN                  (1 << 14)
-
-/* 44xx specific mux bit defines */
 #define OMAP_WAKEUP_EVENT               (1 << 15)
 
 /* Active pin states */
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index fa74a0625da1..ead48fa5715e 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -628,7 +628,7 @@ void __init omap4_local_timer_init(void)
 #endif /* CONFIG_HAVE_ARM_TWD */
 #endif /* CONFIG_ARCH_OMAP4 */
 
-#ifdef CONFIG_SOC_OMAP5
+#if defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX)
 void __init omap5_realtime_timer_init(void)
 {
         omap4_sync32k_timer_init();
@@ -636,7 +636,7 @@ void __init omap5_realtime_timer_init(void)
 
         clocksource_of_init();
 }
-#endif /* CONFIG_SOC_OMAP5 */
+#endif /* CONFIG_SOC_OMAP5 || CONFIG_SOC_DRA7XX */
 
 /**
  * omap_timer_init - build and register timer device with an
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index f5e1a8471714..1272ed202dde 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1232,7 +1232,8 @@ __iommu_create_mapping(struct device *dev, struct page **pages, size_t size)
                                 break;
 
                 len = (j - i) << PAGE_SHIFT;
-                ret = iommu_map(mapping->domain, iova, phys, len, 0);
+                ret = iommu_map(mapping->domain, iova, phys, len,
+                                IOMMU_READ|IOMMU_WRITE);
                 if (ret < 0)
                         goto fail;
                 iova += len;
@@ -1431,6 +1432,27 @@ static int arm_iommu_get_sgtable(struct device *dev, struct sg_table *sgt,
                                          GFP_KERNEL);
 }
 
+static int __dma_direction_to_prot(enum dma_data_direction dir)
+{
+        int prot;
+
+        switch (dir) {
+        case DMA_BIDIRECTIONAL:
+                prot = IOMMU_READ | IOMMU_WRITE;
+                break;
+        case DMA_TO_DEVICE:
+                prot = IOMMU_READ;
+                break;
+        case DMA_FROM_DEVICE:
+                prot = IOMMU_WRITE;
+                break;
+        default:
+                prot = 0;
+        }
+
+        return prot;
+}
+
 /*
  * Map a part of the scatter-gather list into contiguous io address space
  */
@@ -1444,6 +1466,7 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg,
         int ret = 0;
         unsigned int count;
         struct scatterlist *s;
+        int prot;
 
         size = PAGE_ALIGN(size);
         *handle = DMA_ERROR_CODE;
@@ -1460,7 +1483,9 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg,
                         !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
                         __dma_page_cpu_to_dev(sg_page(s), s->offset, s->length, dir);
 
-                ret = iommu_map(mapping->domain, iova, phys, len, 0);
+                prot = __dma_direction_to_prot(dir);
+
+                ret = iommu_map(mapping->domain, iova, phys, len, prot);
                 if (ret < 0)
                         goto fail;
                 count += len >> PAGE_SHIFT;
@@ -1665,19 +1690,7 @@ static dma_addr_t arm_coherent_iommu_map_page(struct device *dev, struct page *p
         if (dma_addr == DMA_ERROR_CODE)
                 return dma_addr;
 
-        switch (dir) {
-        case DMA_BIDIRECTIONAL:
-                prot = IOMMU_READ | IOMMU_WRITE;
-                break;
-        case DMA_TO_DEVICE:
-                prot = IOMMU_READ;
-                break;
-        case DMA_FROM_DEVICE:
-                prot = IOMMU_WRITE;
-                break;
-        default:
-                prot = 0;
-        }
+        prot = __dma_direction_to_prot(dir);
 
         ret = iommu_map(mapping->domain, dma_addr, page_to_phys(page), len, prot);
         if (ret < 0)
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index febaee7ca57b..18ec4c504abf 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -17,7 +17,6 @@
 #include <linux/nodemask.h>
 #include <linux/initrd.h>
 #include <linux/of_fdt.h>
-#include <linux/of_reserved_mem.h>
 #include <linux/highmem.h>
 #include <linux/gfp.h>
 #include <linux/memblock.h>
@@ -379,8 +378,6 @@ void __init arm_memblock_init(struct meminfo *mi,
         if (mdesc->reserve)
                 mdesc->reserve();
 
-        early_init_dt_scan_reserved_mem();
-
         /*
          * reserve memory for DMA contigouos allocations,
          * must come from DMA area inside low memory