16 files changed, 98 insertions, 106 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1dbb58c1feed..9f2d203162b2 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -696,7 +696,6 @@ config ARCH_SA1100
         select GENERIC_CLOCKEVENTS
         select HAVE_IDE
         select ISA
-        select NEED_MACH_GPIO_H
         select NEED_MACH_MEMORY_H
         select SPARSE_IRQ
         help
diff --git a/arch/arm/configs/h3600_defconfig b/arch/arm/configs/h3600_defconfig
index 317960f12488..0142ec37e0be 100644
--- a/arch/arm/configs/h3600_defconfig
+++ b/arch/arm/configs/h3600_defconfig
@@ -1,5 +1,6 @@
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_MODULES=y
@@ -11,11 +12,11 @@ CONFIG_ARCH_SA1100=y
 CONFIG_SA1100_H3600=y
 CONFIG_PCCARD=y
 CONFIG_PCMCIA_SA1100=y
+CONFIG_PREEMPT=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 # CONFIG_CPU_FREQ_STAT is not set
 CONFIG_FPE_NWFPE=y
-CONFIG_PM=y
 CONFIG_NET=y
 CONFIG_UNIX=y
 CONFIG_INET=y
@@ -24,13 +25,10 @@ CONFIG_IRDA=m
 CONFIG_IRLAN=m
 CONFIG_IRNET=m
 CONFIG_IRCOMM=m
-CONFIG_SA1100_FIR=m
 # CONFIG_WIRELESS is not set
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -41,19 +39,15 @@ CONFIG_MTD_SA1100=y
 CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=8192
-# CONFIG_MISC_DEVICES is not set
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECS=y
 CONFIG_NETDEVICES=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
-# CONFIG_WLAN is not set
-CONFIG_NET_PCMCIA=y
 CONFIG_PCMCIA_PCNET=y
 CONFIG_PPP=m
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_DEFLATE=m
 CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_ASYNC=m
+# CONFIG_WLAN is not set
 # CONFIG_KEYBOARD_ATKBD is not set
 CONFIG_KEYBOARD_GPIO=y
 # CONFIG_INPUT_MOUSE is not set
@@ -64,8 +58,6 @@ CONFIG_SERIAL_SA1100_CONSOLE=y
 # CONFIG_HWMON is not set
 CONFIG_FB=y
 CONFIG_FB_SA1100=y
-# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_EXT2_FS=y
 CONFIG_MSDOS_FS=m
@@ -74,6 +66,4 @@ CONFIG_JFFS2_FS=y
 CONFIG_CRAMFS=m
 CONFIG_NFS_FS=y
 CONFIG_NFSD=m
-CONFIG_SMB_FS=m
 CONFIG_NLS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 55090fbb81a2..b3fb8c9e1ff2 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -192,6 +192,7 @@ __dabt_svc:
         svc_entry
         mov     r2, sp
         dabt_helper
+ THUMB( ldr     r5, [sp, #S_PSR]        )       @ potentially updated CPSR
         svc_exit r5                             @ return from exception
  UNWIND(.fnend          )
 ENDPROC(__dabt_svc)
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 64845fc4152a..04d63880037f 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -353,12 +353,18 @@ setup_return(struct pt_regs *regs, struct ksignal *ksig,
                  */
                 thumb = handler & 1;
 
-                if (thumb) {
-                        cpsr |= PSR_T_BIT;
 #if __LINUX_ARM_ARCH__ >= 7
-                        /* clear the If-Then Thumb-2 execution state */
-                        cpsr &= ~PSR_IT_MASK;
+                /*
+                 * Clear the If-Then Thumb-2 execution state
+                 * ARM spec requires this to be all 000s in ARM mode
+                 * Snapdragon S4/Krait misbehaves on a Thumb=>ARM
+                 * signal transition without this.
+                 */
+                cpsr &= ~PSR_IT_MASK;
 #endif
+
+                if (thumb) {
+                        cpsr |= PSR_T_BIT;
                 } else
                         cpsr &= ~PSR_T_BIT;
         }
diff --git a/arch/arm/mach-highbank/Kconfig b/arch/arm/mach-highbank/Kconfig
index 3c3bff715b47..0ca7377746c8 100644
--- a/arch/arm/mach-highbank/Kconfig
+++ b/arch/arm/mach-highbank/Kconfig
@@ -9,7 +9,7 @@ config ARCH_HIGHBANK
         select ARM_AMBA
         select ARM_ERRATA_764369
         select ARM_ERRATA_775420
-        select ARM_ERRATA_798181
+        select ARM_ERRATA_798181 if SMP
         select ARM_GIC
         select ARM_TIMER_SP804
         select CACHE_L2X0
diff --git a/arch/arm/mach-sa1100/assabet.c b/arch/arm/mach-sa1100/assabet.c
index e838ba27e443..c9808c684152 100644
--- a/arch/arm/mach-sa1100/assabet.c
+++ b/arch/arm/mach-sa1100/assabet.c
@@ -512,6 +512,9 @@ static void __init assabet_map_io(void)
          * Its called GPCLKR0 in my SA1110 manual.
          */
         Ser1SDCR0 |= SDCR0_SUS;
+        MSC1 = (MSC1 & ~0xffff) |
+                MSC_NonBrst | MSC_32BitStMem |
+                MSC_RdAcc(2) | MSC_WrAcc(2) | MSC_Rec(0);
 
         if (!machine_has_neponset())
                 sa1100_register_uart_fns(&assabet_port_fns);
diff --git a/arch/arm/mach-sa1100/include/mach/gpio.h b/arch/arm/mach-sa1100/include/mach/gpio.h
deleted file mode 100644
index 6a9eecf3137e..000000000000
--- a/arch/arm/mach-sa1100/include/mach/gpio.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * arch/arm/mach-sa1100/include/mach/gpio.h
- *
- * SA1100 GPIO wrappers for arch-neutral GPIO calls
- *
- * Written by Philipp Zabel <philipp.zabel@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#ifndef __ASM_ARCH_SA1100_GPIO_H
-#define __ASM_ARCH_SA1100_GPIO_H
-
-#include <linux/io.h>
-#include <mach/hardware.h>
-#include <asm/irq.h>
-#include <asm-generic/gpio.h>
-
-#define __ARM_GPIOLIB_COMPLEX
-
-static inline int gpio_get_value(unsigned gpio)
-{
-        if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX))
-                return GPLR & GPIO_GPIO(gpio);
-        else
-                return __gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value(unsigned gpio, int value)
-{
-        if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX))
-                if (value)
-                        GPSR = GPIO_GPIO(gpio);
-                else
-                        GPCR = GPIO_GPIO(gpio);
-        else
-                __gpio_set_value(gpio, value);
-}
-
-#define gpio_cansleep   __gpio_cansleep
-
-#endif
diff --git a/arch/arm/mach-sa1100/include/mach/h3xxx.h b/arch/arm/mach-sa1100/include/mach/h3xxx.h
index 7d9df16f04a2..c810620db53d 100644
--- a/arch/arm/mach-sa1100/include/mach/h3xxx.h
+++ b/arch/arm/mach-sa1100/include/mach/h3xxx.h
@@ -13,6 +13,8 @@
 #ifndef _INCLUDE_H3XXX_H_
 #define _INCLUDE_H3XXX_H_
 
+#include "hardware.h" /* Gives GPIO_MAX */
+
 /* Physical memory regions corresponding to chip selects */
 #define H3600_EGPIO_PHYS        (SA1100_CS5_PHYS + 0x01000000)
 #define H3600_BANK_2_PHYS       SA1100_CS2_PHYS
diff --git a/arch/arm/mach-sa1100/simpad.c b/arch/arm/mach-sa1100/simpad.c
index bcbc94540e45..41e476e571d7 100644
--- a/arch/arm/mach-sa1100/simpad.c
+++ b/arch/arm/mach-sa1100/simpad.c
@@ -19,6 +19,7 @@
 
 #include <mach/hardware.h>
 #include <asm/setup.h>
+#include <asm/irq.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 67a76f2dfb9f..f26428d8b62a 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -54,7 +54,7 @@ config ARCH_TEGRA_3x_SOC
 config ARCH_TEGRA_114_SOC
         bool "Enable support for Tegra114 family"
         select HAVE_ARM_ARCH_TIMER
-        select ARM_ERRATA_798181
+        select ARM_ERRATA_798181 if SMP
         select ARM_L1_CACHE_SHIFT_6
         select PINCTRL_TEGRA114
         help
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 1272ed202dde..b5a3f6031146 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -687,7 +687,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 void *arm_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
                     gfp_t gfp, struct dma_attrs *attrs)
 {
-        pgprot_t prot = __get_dma_pgprot(attrs, pgprot_kernel);
+        pgprot_t prot = __get_dma_pgprot(attrs, PAGE_KERNEL);
         void *memory;
 
         if (dma_alloc_from_coherent(dev, size, handle, &memory))
@@ -700,7 +700,7 @@ void *arm_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 static void *arm_coherent_dma_alloc(struct device *dev, size_t size,
         dma_addr_t *handle, gfp_t gfp, struct dma_attrs *attrs)
 {
-        pgprot_t prot = __get_dma_pgprot(attrs, pgprot_kernel);
+        pgprot_t prot = __get_dma_pgprot(attrs, PAGE_KERNEL);
         void *memory;
 
         if (dma_alloc_from_coherent(dev, size, handle, &memory))
diff --git a/arch/arm/mm/extable.c b/arch/arm/mm/extable.c
index 9d285626bc7d..312e15e6d00b 100644
--- a/arch/arm/mm/extable.c
+++ b/arch/arm/mm/extable.c
@@ -9,8 +9,13 @@ int fixup_exception(struct pt_regs *regs)
         const struct exception_table_entry *fixup;
 
         fixup = search_exception_tables(instruction_pointer(regs));
-        if (fixup)
+        if (fixup) {
                 regs->ARM_pc = fixup->fixup;
+#ifdef CONFIG_THUMB2_KERNEL
+                /* Clear the IT state to avoid nasty surprises in the fixup */
+                regs->ARM_cpsr &= ~PSR_IT_MASK;
+#endif
+        }
 
         return fixup != NULL;
 }
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 52b8f40b1c73..2f37e1d6cb45 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -642,9 +642,9 @@ int vfp_restore_user_hwstate(struct user_vfp __user *ufp,
 static int vfp_hotplug(struct notifier_block *b, unsigned long action,
         void *hcpu)
 {
-        if (action == CPU_DYING || action == CPU_DYING_FROZEN) {
-                vfp_force_reload((long)hcpu, current_thread_info());
-        } else if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
+        if (action == CPU_DYING || action == CPU_DYING_FROZEN)
+                vfp_current_hw_state[(long)hcpu] = NULL;
+        else if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
                 vfp_enable(NULL);
         return NOTIFY_OK;
 }
diff --git a/drivers/gpio/gpio-sa1100.c b/drivers/gpio/gpio-sa1100.c
index 8ea3b33d4b40..a90be34e4d5c 100644
--- a/drivers/gpio/gpio-sa1100.c
+++ b/drivers/gpio/gpio-sa1100.c
@@ -10,7 +10,7 @@
 #include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/module.h>
-
+#include <linux/io.h>
 #include <mach/hardware.h>
 #include <mach/irqs.h>
 
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index c3785edc0e92..d135c76c4855 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -62,6 +62,7 @@ static unsigned int fmax = 515633;
  * @signal_direction: input/out direction of bus signals can be indicated
  * @pwrreg_clkgate: MMCIPOWER register must be used to gate the clock
  * @busy_detect: true if busy detection on dat0 is supported
+ * @pwrreg_nopower: bits in MMCIPOWER don't controls ext. power supply
  */
 struct variant_data {
         unsigned int            clkreg;
@@ -76,6 +77,7 @@ struct variant_data {
         bool                    signal_direction;
         bool                    pwrreg_clkgate;
         bool                    busy_detect;
+        bool                    pwrreg_nopower;
 };
 
 static struct variant_data variant_arm = {
@@ -109,6 +111,7 @@ static struct variant_data variant_u300 = {
         .pwrreg_powerup         = MCI_PWR_ON,
         .signal_direction       = true,
         .pwrreg_clkgate         = true,
+        .pwrreg_nopower         = true,
 };
 
 static struct variant_data variant_nomadik = {
@@ -121,6 +124,7 @@ static struct variant_data variant_nomadik = {
         .pwrreg_powerup         = MCI_PWR_ON,
         .signal_direction       = true,
         .pwrreg_clkgate         = true,
+        .pwrreg_nopower         = true,
 };
 
 static struct variant_data variant_ux500 = {
@@ -135,6 +139,7 @@ static struct variant_data variant_ux500 = {
         .signal_direction       = true,
         .pwrreg_clkgate         = true,
         .busy_detect            = true,
+        .pwrreg_nopower         = true,
 };
 
 static struct variant_data variant_ux500v2 = {
@@ -150,6 +155,7 @@ static struct variant_data variant_ux500v2 = {
         .signal_direction       = true,
         .pwrreg_clkgate         = true,
         .busy_detect            = true,
+        .pwrreg_nopower         = true,
 };
 
 static int mmci_card_busy(struct mmc_host *mmc)
@@ -189,6 +195,21 @@ static int mmci_validate_data(struct mmci_host *host,
         return 0;
 }
 
+static void mmci_reg_delay(struct mmci_host *host)
+{
+        /*
+         * According to the spec, at least three feedback clock cycles
+         * of max 52 MHz must pass between two writes to the MMCICLOCK reg.
+         * Three MCLK clock cycles must pass between two MMCIPOWER reg writes.
+         * Worst delay time during card init is at 100 kHz => 30 us.
+         * Worst delay time when up and running is at 25 MHz => 120 ns.
+         */
+        if (host->cclk < 25000000)
+                udelay(30);
+        else
+                ndelay(120);
+}
+
 /*
  * This must be called with host->lock held
  */
@@ -1264,6 +1285,7 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 
         mmci_set_clkreg(host, ios->clock);
         mmci_write_pwrreg(host, pwr);
+        mmci_reg_delay(host);
 
         spin_unlock_irqrestore(&host->lock, flags);
 
@@ -1510,23 +1532,6 @@ static int mmci_probe(struct amba_device *dev,
                 mmc->f_max = min(host->mclk, fmax);
         dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max);
 
-        host->pinctrl = devm_pinctrl_get(&dev->dev);
-        if (IS_ERR(host->pinctrl)) {
-                ret = PTR_ERR(host->pinctrl);
-                goto clk_disable;
-        }
-
-        host->pins_default = pinctrl_lookup_state(host->pinctrl,
-                        PINCTRL_STATE_DEFAULT);
-
-        /* enable pins to be muxed in and configured */
-        if (!IS_ERR(host->pins_default)) {
-                ret = pinctrl_select_state(host->pinctrl, host->pins_default);
-                if (ret)
-                        dev_warn(&dev->dev, "could not set default pins\n");
-        } else
-                dev_warn(&dev->dev, "could not get default pinstate\n");
-
         /* Get regulators and the supported OCR mask */
         mmc_regulator_get_supply(mmc);
         if (!mmc->ocr_avail)
@@ -1760,6 +1765,41 @@ static int mmci_resume(struct device *dev)
 #endif
 
 #ifdef CONFIG_PM_RUNTIME
+static void mmci_save(struct mmci_host *host)
+{
+        unsigned long flags;
+
+        if (host->variant->pwrreg_nopower) {
+                spin_lock_irqsave(&host->lock, flags);
+
+                writel(0, host->base + MMCIMASK0);
+                writel(0, host->base + MMCIDATACTRL);
+                writel(0, host->base + MMCIPOWER);
+                writel(0, host->base + MMCICLOCK);
+                mmci_reg_delay(host);
+
+                spin_unlock_irqrestore(&host->lock, flags);
+        }
+
+}
+
+static void mmci_restore(struct mmci_host *host)
+{
+        unsigned long flags;
+
+        if (host->variant->pwrreg_nopower) {
+                spin_lock_irqsave(&host->lock, flags);
+
+                writel(host->clk_reg, host->base + MMCICLOCK);
+                writel(host->datactrl_reg, host->base + MMCIDATACTRL);
+                writel(host->pwr_reg, host->base + MMCIPOWER);
+                writel(MCI_IRQENABLE, host->base + MMCIMASK0);
+                mmci_reg_delay(host);
+
+                spin_unlock_irqrestore(&host->lock, flags);
+        }
+}
+
 static int mmci_runtime_suspend(struct device *dev)
 {
         struct amba_device *adev = to_amba_device(dev);
@@ -1767,6 +1807,8 @@ static int mmci_runtime_suspend(struct device *dev)
 
         if (mmc) {
                 struct mmci_host *host = mmc_priv(mmc);
+                pinctrl_pm_select_sleep_state(dev);
+                mmci_save(host);
                 clk_disable_unprepare(host->clk);
         }
 
@@ -1781,6 +1823,8 @@ static int mmci_runtime_resume(struct device *dev)
         if (mmc) {
                 struct mmci_host *host = mmc_priv(mmc);
                 clk_prepare_enable(host->clk);
+                mmci_restore(host);
+                pinctrl_pm_select_default_state(dev);
         }
 
         return 0;
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index 69080fab6375..168bc72f7a94 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -200,10 +200,6 @@ struct mmci_host {
         struct sg_mapping_iter  sg_miter;
         unsigned int            size;
 
-        /* pinctrl handles */
-        struct pinctrl          *pinctrl;
-        struct pinctrl_state    *pins_default;
-
 #ifdef CONFIG_DMA_ENGINE
         /* DMA stuff */
         struct dma_chan         *dma_current;