46 files changed, 145 insertions, 97 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a48aecc17eac..dfb0312f4e73 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1280,7 +1280,7 @@ config ARM_ERRATA_743622
         depends on CPU_V7
         help
           This option enables the workaround for the 743622 Cortex-A9
-          (r2p0..r2p2) erratum. Under very rare conditions, a faulty
+          (r2p*) erratum. Under very rare conditions, a faulty
           optimisation in the Cortex-A9 Store Buffer may lead to data
           corruption. This workaround sets a specific bit in the diagnostic
           register of the Cortex-A9 which disables the Store Buffer
diff --git a/arch/arm/boot/.gitignore b/arch/arm/boot/.gitignore
index ce1c5ff746e7..3c79f85975aa 100644
--- a/arch/arm/boot/.gitignore
+++ b/arch/arm/boot/.gitignore
@@ -3,3 +3,4 @@ zImage
 xipImage
 bootpImage
 uImage
+*.dtb
diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h
index b5a5be2536c1..90114faa9f3c 100644
--- a/arch/arm/include/asm/pmu.h
+++ b/arch/arm/include/asm/pmu.h
@@ -134,7 +134,7 @@ int __init armpmu_register(struct arm_pmu *armpmu, char *name, int type);
 
 u64 armpmu_event_update(struct perf_event *event,
                         struct hw_perf_event *hwc,
-                        int idx, int overflow);
+                        int idx);
 
 int armpmu_event_set_period(struct perf_event *event,
                             struct hw_perf_event *hwc,
diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index 4dd0edab6a65..1651d4950744 100644
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -242,6 +242,7 @@ static void ecard_init_pgtables(struct mm_struct *mm)
 
         memcpy(dst_pgd, src_pgd, sizeof(pgd_t) * (EASI_SIZE / PGDIR_SIZE));
 
+        vma.vm_flags = VM_EXEC;
         vma.vm_mm = mm;
 
         flush_tlb_range(&vma, IO_START, IO_START + IO_SIZE);
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 5bb91bf3d47f..b2abfa18f137 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -180,7 +180,7 @@ armpmu_event_set_period(struct perf_event *event,
 u64
 armpmu_event_update(struct perf_event *event,
                     struct hw_perf_event *hwc,
-                    int idx, int overflow)
+                    int idx)
 {
         struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
         u64 delta, prev_raw_count, new_raw_count;
@@ -193,13 +193,7 @@ again:
                              new_raw_count) != prev_raw_count)
                 goto again;
 
-        new_raw_count &= armpmu->max_period;
-        prev_raw_count &= armpmu->max_period;
-
-        if (overflow)
-                delta = armpmu->max_period - prev_raw_count + new_raw_count + 1;
-        else
-                delta = new_raw_count - prev_raw_count;
+        delta = (new_raw_count - prev_raw_count) & armpmu->max_period;
 
         local64_add(delta, &event->count);
         local64_sub(delta, &hwc->period_left);
@@ -216,7 +210,7 @@ armpmu_read(struct perf_event *event)
         if (hwc->idx < 0)
                 return;
 
-        armpmu_event_update(event, hwc, hwc->idx, 0);
+        armpmu_event_update(event, hwc, hwc->idx);
 }
 
 static void
@@ -232,7 +226,7 @@ armpmu_stop(struct perf_event *event, int flags)
         if (!(hwc->state & PERF_HES_STOPPED)) {
                 armpmu->disable(hwc, hwc->idx);
                 barrier(); /* why? */
-                armpmu_event_update(event, hwc, hwc->idx, 0);
+                armpmu_event_update(event, hwc, hwc->idx);
                 hwc->state |= PERF_HES_STOPPED | PERF_HES_UPTODATE;
         }
 }
@@ -518,7 +512,13 @@ __hw_perf_event_init(struct perf_event *event)
         hwc->config_base            |= (unsigned long)mapping;
 
         if (!hwc->sample_period) {
-                hwc->sample_period  = armpmu->max_period;
+                /*
+                 * For non-sampling runs, limit the sample_period to half
+                 * of the counter width. That way, the new counter value
+                 * is far less likely to overtake the previous one unless
+                 * you have some serious IRQ latency issues.
+                 */
+                hwc->sample_period  = armpmu->max_period >> 1;
                 hwc->last_period    = hwc->sample_period;
                 local64_set(&hwc->period_left, hwc->sample_period);
         }
@@ -680,6 +680,28 @@ static void __init cpu_pmu_init(struct arm_pmu *armpmu)
 }
 
 /*
+ * PMU hardware loses all context when a CPU goes offline.
+ * When a CPU is hotplugged back in, since some hardware registers are
+ * UNKNOWN at reset, the PMU must be explicitly reset to avoid reading
+ * junk values out of them.
+ */
+static int __cpuinit pmu_cpu_notify(struct notifier_block *b,
+                                        unsigned long action, void *hcpu)
+{
+        if ((action & ~CPU_TASKS_FROZEN) != CPU_STARTING)
+                return NOTIFY_DONE;
+
+        if (cpu_pmu && cpu_pmu->reset)
+                cpu_pmu->reset(NULL);
+
+        return NOTIFY_OK;
+}
+
+static struct notifier_block __cpuinitdata pmu_cpu_notifier = {
+        .notifier_call = pmu_cpu_notify,
+};
+
+/*
  * CPU PMU identification and registration.
  */
 static int __init
@@ -730,6 +752,7 @@ init_hw_perf_events(void)
                 pr_info("enabled with %s PMU driver, %d counters available\n",
                         cpu_pmu->name, cpu_pmu->num_events);
                 cpu_pmu_init(cpu_pmu);
+                register_cpu_notifier(&pmu_cpu_notifier);
                 armpmu_register(cpu_pmu, "cpu", PERF_TYPE_RAW);
         } else {
                 pr_info("no hardware support available\n");
diff --git a/arch/arm/kernel/perf_event_v6.c b/arch/arm/kernel/perf_event_v6.c
index 533be9930ec2..b78af0cc6ef3 100644
--- a/arch/arm/kernel/perf_event_v6.c
+++ b/arch/arm/kernel/perf_event_v6.c
@@ -467,23 +467,6 @@ armv6pmu_enable_event(struct hw_perf_event *hwc,
         raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
-static int counter_is_active(unsigned long pmcr, int idx)
-{
-        unsigned long mask = 0;
-        if (idx == ARMV6_CYCLE_COUNTER)
-                mask = ARMV6_PMCR_CCOUNT_IEN;
-        else if (idx == ARMV6_COUNTER0)
-                mask = ARMV6_PMCR_COUNT0_IEN;
-        else if (idx == ARMV6_COUNTER1)
-                mask = ARMV6_PMCR_COUNT1_IEN;
-
-        if (mask)
-                return pmcr & mask;
-
-        WARN_ONCE(1, "invalid counter number (%d)\n", idx);
-        return 0;
-}
-
 static irqreturn_t
 armv6pmu_handle_irq(int irq_num,
                     void *dev)
@@ -513,7 +496,8 @@ armv6pmu_handle_irq(int irq_num,
                 struct perf_event *event = cpuc->events[idx];
                 struct hw_perf_event *hwc;
 
-                if (!counter_is_active(pmcr, idx))
+                /* Ignore if we don't have an event. */
+                if (!event)
                         continue;
 
                 /*
@@ -524,7 +508,7 @@ armv6pmu_handle_irq(int irq_num,
                         continue;
 
                 hwc = &event->hw;
-                armpmu_event_update(event, hwc, idx, 1);
+                armpmu_event_update(event, hwc, idx);
                 data.period = event->hw.last_period;
                 if (!armpmu_event_set_period(event, hwc, idx))
                         continue;
diff --git a/arch/arm/kernel/perf_event_v7.c b/arch/arm/kernel/perf_event_v7.c
index 6933244c68f9..4d7095af2ab3 100644
--- a/arch/arm/kernel/perf_event_v7.c
+++ b/arch/arm/kernel/perf_event_v7.c
@@ -809,6 +809,11 @@ static inline int armv7_pmnc_disable_intens(int idx)
 
         counter = ARMV7_IDX_TO_COUNTER(idx);
         asm volatile("mcr p15, 0, %0, c9, c14, 2" : : "r" (BIT(counter)));
+        isb();
+        /* Clear the overflow flag in case an interrupt is pending. */
+        asm volatile("mcr p15, 0, %0, c9, c12, 3" : : "r" (BIT(counter)));
+        isb();
+
         return idx;
 }
 
@@ -955,6 +960,10 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
                 struct perf_event *event = cpuc->events[idx];
                 struct hw_perf_event *hwc;
 
+                /* Ignore if we don't have an event. */
+                if (!event)
+                        continue;
+
                 /*
                  * We have a single interrupt for all counters. Check that
                  * each counter has overflowed before we process it.
@@ -963,7 +972,7 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
                         continue;
 
                 hwc = &event->hw;
-                armpmu_event_update(event, hwc, idx, 1);
+                armpmu_event_update(event, hwc, idx);
                 data.period = event->hw.last_period;
                 if (!armpmu_event_set_period(event, hwc, idx))
                         continue;
diff --git a/arch/arm/kernel/perf_event_xscale.c b/arch/arm/kernel/perf_event_xscale.c
index 3b99d8269829..71a21e6712f5 100644
--- a/arch/arm/kernel/perf_event_xscale.c
+++ b/arch/arm/kernel/perf_event_xscale.c
@@ -255,11 +255,14 @@ xscale1pmu_handle_irq(int irq_num, void *dev)
                 struct perf_event *event = cpuc->events[idx];
                 struct hw_perf_event *hwc;
 
+                if (!event)
+                        continue;
+
                 if (!xscale1_pmnc_counter_has_overflowed(pmnc, idx))
                         continue;
 
                 hwc = &event->hw;
-                armpmu_event_update(event, hwc, idx, 1);
+                armpmu_event_update(event, hwc, idx);
                 data.period = event->hw.last_period;
                 if (!armpmu_event_set_period(event, hwc, idx))
                         continue;
@@ -592,11 +595,14 @@ xscale2pmu_handle_irq(int irq_num, void *dev)
                 struct perf_event *event = cpuc->events[idx];
                 struct hw_perf_event *hwc;
 
-                if (!xscale2_pmnc_counter_has_overflowed(pmnc, idx))
+                if (!event)
+                        continue;
+
+                if (!xscale2_pmnc_counter_has_overflowed(of_flags, idx))
                         continue;
 
                 hwc = &event->hw;
-                armpmu_event_update(event, hwc, idx, 1);
+                armpmu_event_update(event, hwc, idx);
                 data.period = event->hw.last_period;
                 if (!armpmu_event_set_period(event, hwc, idx))
                         continue;
@@ -663,7 +669,7 @@ xscale2pmu_enable_event(struct hw_perf_event *hwc, int idx)
 static void
 xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
 {
-        unsigned long flags, ien, evtsel;
+        unsigned long flags, ien, evtsel, of_flags;
         struct pmu_hw_events *events = cpu_pmu->get_hw_events();
 
         ien = xscale2pmu_read_int_enable();
@@ -672,26 +678,31 @@ xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
         switch (idx) {
         case XSCALE_CYCLE_COUNTER:
                 ien &= ~XSCALE2_CCOUNT_INT_EN;
+                of_flags = XSCALE2_CCOUNT_OVERFLOW;
                 break;
         case XSCALE_COUNTER0:
                 ien &= ~XSCALE2_COUNT0_INT_EN;
                 evtsel &= ~XSCALE2_COUNT0_EVT_MASK;
                 evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT0_EVT_SHFT;
+                of_flags = XSCALE2_COUNT0_OVERFLOW;
                 break;
         case XSCALE_COUNTER1:
                 ien &= ~XSCALE2_COUNT1_INT_EN;
                 evtsel &= ~XSCALE2_COUNT1_EVT_MASK;
                 evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT1_EVT_SHFT;
+                of_flags = XSCALE2_COUNT1_OVERFLOW;
                 break;
         case XSCALE_COUNTER2:
                 ien &= ~XSCALE2_COUNT2_INT_EN;
                 evtsel &= ~XSCALE2_COUNT2_EVT_MASK;
                 evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT2_EVT_SHFT;
+                of_flags = XSCALE2_COUNT2_OVERFLOW;
                 break;
         case XSCALE_COUNTER3:
                 ien &= ~XSCALE2_COUNT3_INT_EN;
                 evtsel &= ~XSCALE2_COUNT3_EVT_MASK;
                 evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT3_EVT_SHFT;
+                of_flags = XSCALE2_COUNT3_OVERFLOW;
                 break;
         default:
                 WARN_ONCE(1, "invalid counter number (%d)\n", idx);
@@ -701,6 +712,7 @@ xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
         raw_spin_lock_irqsave(&events->pmu_lock, flags);
         xscale2pmu_write_event_select(evtsel);
         xscale2pmu_write_int_enable(ien);
+        xscale2pmu_write_overflow_flags(of_flags);
         raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
 }
 
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index b7582dd10dc3..96e2adcd5a84 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -38,10 +38,6 @@
 #if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
 static u64 hdmac_dmamask = DMA_BIT_MASK(32);
 
-static struct at_dma_platform_data atdma_pdata = {
-        .nr_channels    = 8,
-};
-
 static struct resource hdmac_resources[] = {
         [0] = {
                 .start  = AT91SAM9G45_BASE_DMA,
@@ -56,12 +52,11 @@ static struct resource hdmac_resources[] = {
 };
 
 static struct platform_device at_hdmac_device = {
-        .name           = "at_hdmac",
+        .name           = "at91sam9g45_dma",
         .id             = -1,
         .dev            = {
                                 .dma_mask               = &hdmac_dmamask,
                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
-                                .platform_data          = &atdma_pdata,
         },
         .resource       = hdmac_resources,
         .num_resources  = ARRAY_SIZE(hdmac_resources),
@@ -69,9 +64,15 @@ static struct platform_device at_hdmac_device = {
 
 void __init at91_add_device_hdmac(void)
 {
-        dma_cap_set(DMA_MEMCPY, atdma_pdata.cap_mask);
-        dma_cap_set(DMA_SLAVE, atdma_pdata.cap_mask);
-        platform_device_register(&at_hdmac_device);
+#if defined(CONFIG_OF)
+        struct device_node *of_node =
+                of_find_node_by_name(NULL, "dma-controller");
+
+        if (of_node)
+                of_node_put(of_node);
+        else
+#endif
+                platform_device_register(&at_hdmac_device);
 }
 #else
 void __init at91_add_device_hdmac(void) {}
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index 61908dce9784..9be71c11d0f0 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -33,10 +33,6 @@
 #if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
 static u64 hdmac_dmamask = DMA_BIT_MASK(32);
 
-static struct at_dma_platform_data atdma_pdata = {
-        .nr_channels    = 2,
-};
-
 static struct resource hdmac_resources[] = {
         [0] = {
                 .start  = AT91SAM9RL_BASE_DMA,
@@ -51,12 +47,11 @@ static struct resource hdmac_resources[] = {
 };
 
 static struct platform_device at_hdmac_device = {
-        .name           = "at_hdmac",
+        .name           = "at91sam9rl_dma",
         .id             = -1,
         .dev            = {
                                 .dma_mask               = &hdmac_dmamask,
                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
-                                .platform_data          = &atdma_pdata,
         },
         .resource       = hdmac_resources,
         .num_resources  = ARRAY_SIZE(hdmac_resources),
@@ -64,7 +59,6 @@ static struct platform_device at_hdmac_device = {
 
 void __init at91_add_device_hdmac(void)
 {
-        dma_cap_set(DMA_MEMCPY, atdma_pdata.cap_mask);
         platform_device_register(&at_hdmac_device);
 }
 #else
diff --git a/arch/arm/mach-ep93xx/vision_ep9307.c b/arch/arm/mach-ep93xx/vision_ep9307.c
index d5fb44f16d31..d67d0b4feb6f 100644
--- a/arch/arm/mach-ep93xx/vision_ep9307.c
+++ b/arch/arm/mach-ep93xx/vision_ep9307.c
@@ -34,6 +34,7 @@
 #include <mach/ep93xx_spi.h>
 #include <mach/gpio-ep93xx.h>
 
+#include <asm/hardware/vic.h>
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
 #include <asm/mach/arch.h>
@@ -361,6 +362,7 @@ MACHINE_START(VISION_EP9307, "Vision Engraving Systems EP9307")
         .atag_offset    = 0x100,
         .map_io         = vision_map_io,
         .init_irq       = ep93xx_init_irq,
+        .handle_irq     = vic_handle_irq,
         .timer          = &ep93xx_timer,
         .init_machine   = vision_init_machine,
         .restart        = ep93xx_restart,
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c
index 0fc65ffde8ff..38939956c34f 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -13,6 +13,7 @@
 #include <linux/i2c.h>
 #include <linux/gpio_keys.h>
 #include <linux/gpio.h>
+#include <linux/interrupt.h>
 #include <linux/fb.h>
 #include <linux/mfd/max8998.h>
 #include <linux/regulator/machine.h>
@@ -595,6 +596,7 @@ static struct mxt_platform_data qt602240_platform_data = {
         .threshold      = 0x28,
         .voltage        = 2800000,              /* 2.8V */
         .orient         = MXT_DIAGONAL,
+        .irqflags       = IRQF_TRIGGER_FALLING,
 };
 
 static struct i2c_board_info i2c3_devs[] __initdata = {
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 6c5826605eae..719ee423abe2 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -343,6 +343,7 @@ static void __init omap3_check_revision(const char **cpu_rev)
         case 0xb944:
                 omap_revision = AM335X_REV_ES1_0;
                 *cpu_rev = "1.0";
+                break;
         case 0xb8f2:
                 switch (rev) {
                 case 0:
diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c
index 2cc1aa004b94..415a6f1cf419 100644
--- a/arch/arm/mach-omap2/mailbox.c
+++ b/arch/arm/mach-omap2/mailbox.c
@@ -420,8 +420,7 @@ static void __exit omap2_mbox_exit(void)
         platform_driver_unregister(&omap2_mbox_driver);
 }
 
-/* must be ready before omap3isp is probed */
-subsys_initcall(omap2_mbox_init);
+module_init(omap2_mbox_init);
 module_exit(omap2_mbox_exit);
 
 MODULE_LICENSE("GPL v2");
diff --git a/arch/arm/mach-omap2/omap-iommu.c b/arch/arm/mach-omap2/omap-iommu.c
index b8822048e409..ac49384d0285 100644
--- a/arch/arm/mach-omap2/omap-iommu.c
+++ b/arch/arm/mach-omap2/omap-iommu.c
@@ -150,7 +150,8 @@ err_out:
                 platform_device_put(omap_iommu_pdev[i]);
         return err;
 }
-module_init(omap_iommu_init);
+/* must be ready before omap3isp is probed */
+subsys_initcall(omap_iommu_init);
 
 static void __exit omap_iommu_exit(void)
 {
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index ebc595091312..70de277f5c15 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -31,6 +31,7 @@
 
 #include "common.h"
 #include "omap4-sar-layout.h"
+#include <linux/export.h>
 
 #ifdef CONFIG_CACHE_L2X0
 static void __iomem *l2cache_base;
@@ -55,6 +56,7 @@ void omap_bus_sync(void)
                 isb();
         }
 }
+EXPORT_SYMBOL(omap_bus_sync);
 
 /* Steal one page physical memory for barrier implementation */
 int __init omap_barrier_reserve_memblock(void)
diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index 10b20c652e5d..4b57757bf9d1 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -270,7 +270,6 @@ static struct regulator_init_data omap4_vusb_idata = {
         .constraints = {
                 .min_uV                 = 3300000,
                 .max_uV                 = 3300000,
-                .apply_uV               = true,
                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
                                         | REGULATOR_MODE_STANDBY,
                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
diff --git a/arch/arm/mach-pxa/generic.h b/arch/arm/mach-pxa/generic.h
index 0d729e6619df..42d5cca66257 100644
--- a/arch/arm/mach-pxa/generic.h
+++ b/arch/arm/mach-pxa/generic.h
@@ -49,7 +49,6 @@ extern unsigned pxa3xx_get_clk_frequency_khz(int);
 #endif
 
 extern struct syscore_ops pxa_irq_syscore_ops;
-extern struct syscore_ops pxa_gpio_syscore_ops;
 extern struct syscore_ops pxa2xx_mfp_syscore_ops;
 extern struct syscore_ops pxa3xx_mfp_syscore_ops;
 
diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c
index f14775536b83..29b62afc6f7c 100644
--- a/arch/arm/mach-pxa/mfp-pxa2xx.c
+++ b/arch/arm/mach-pxa/mfp-pxa2xx.c
@@ -226,6 +226,12 @@ static void __init pxa25x_mfp_init(void)
 {
         int i;
 
+        /* running before pxa_gpio_probe() */
+#ifdef CONFIG_CPU_PXA26x
+        pxa_last_gpio = 89;
+#else
+        pxa_last_gpio = 84;
+#endif
         for (i = 0; i <= pxa_last_gpio; i++)
                 gpio_desc[i].valid = 1;
 
@@ -295,6 +301,7 @@ static void __init pxa27x_mfp_init(void)
 {
         int i, gpio;
 
+        pxa_last_gpio = 120;    /* running before pxa_gpio_probe() */
         for (i = 0; i <= pxa_last_gpio; i++) {
                 /* skip GPIO2, 5, 6, 7, 8, they are not
                  * valid pins allow configuration
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 00d6eacab8e4..3352b37b60cf 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -208,6 +208,7 @@ static struct clk_lookup pxa25x_clkregs[] = {
         INIT_CLKREG(&clk_pxa25x_gpio11, NULL, "GPIO11_CLK"),
         INIT_CLKREG(&clk_pxa25x_gpio12, NULL, "GPIO12_CLK"),
         INIT_CLKREG(&clk_pxa25x_mem, "pxa2xx-pcmcia", NULL),
+        INIT_CLKREG(&clk_dummy, "pxa-gpio", NULL),
 };
 
 static struct clk_lookup pxa25x_hwuart_clkreg =
@@ -367,7 +368,6 @@ static int __init pxa25x_init(void)
 
                 register_syscore_ops(&pxa_irq_syscore_ops);
                 register_syscore_ops(&pxa2xx_mfp_syscore_ops);
-                register_syscore_ops(&pxa_gpio_syscore_ops);
                 register_syscore_ops(&pxa2xx_clock_syscore_ops);
 
                 ret = platform_add_devices(pxa25x_devices,
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index c1673b3441d4..6bce78edce7a 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -229,6 +229,7 @@ static struct clk_lookup pxa27x_clkregs[] = {
         INIT_CLKREG(&clk_pxa27x_im, NULL, "IMCLK"),
         INIT_CLKREG(&clk_pxa27x_memc, NULL, "MEMCLK"),
         INIT_CLKREG(&clk_pxa27x_mem, "pxa2xx-pcmcia", NULL),
+        INIT_CLKREG(&clk_dummy, "pxa-gpio", NULL),
 };
 
 #ifdef CONFIG_PM
@@ -455,7 +456,6 @@ static int __init pxa27x_init(void)
 
                 register_syscore_ops(&pxa_irq_syscore_ops);
                 register_syscore_ops(&pxa2xx_mfp_syscore_ops);
-                register_syscore_ops(&pxa_gpio_syscore_ops);
                 register_syscore_ops(&pxa2xx_clock_syscore_ops);
 
                 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 4f402afa6609..3918a672238e 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -462,7 +462,6 @@ static int __init pxa3xx_init(void)
 
                 register_syscore_ops(&pxa_irq_syscore_ops);
                 register_syscore_ops(&pxa3xx_mfp_syscore_ops);
-                register_syscore_ops(&pxa_gpio_syscore_ops);
                 register_syscore_ops(&pxa3xx_clock_syscore_ops);
 
                 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
diff --git a/arch/arm/mach-pxa/pxa95x.c b/arch/arm/mach-pxa/pxa95x.c
index d082a583df78..5ce434b95e87 100644
--- a/arch/arm/mach-pxa/pxa95x.c
+++ b/arch/arm/mach-pxa/pxa95x.c
@@ -283,7 +283,6 @@ static int __init pxa95x_init(void)
                         return ret;
 
                 register_syscore_ops(&pxa_irq_syscore_ops);
-                register_syscore_ops(&pxa_gpio_syscore_ops);
                 register_syscore_ops(&pxa3xx_clock_syscore_ops);
 
                 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
diff --git a/arch/arm/mach-s3c2440/common.h b/arch/arm/mach-s3c2440/common.h
index db8a98ac68c5..0c1eb1dfc534 100644
--- a/arch/arm/mach-s3c2440/common.h
+++ b/arch/arm/mach-s3c2440/common.h
@@ -12,6 +12,6 @@
 #ifndef __ARCH_ARM_MACH_S3C2440_COMMON_H
 #define __ARCH_ARM_MACH_S3C2440_COMMON_H
 
-void s3c2440_restart(char mode, const char *cmd);
+void s3c244x_restart(char mode, const char *cmd);
 
 #endif /* __ARCH_ARM_MACH_S3C2440_COMMON_H */
diff --git a/arch/arm/mach-s3c2440/mach-anubis.c b/arch/arm/mach-s3c2440/mach-anubis.c
index 24569550de1a..19b577bc09b8 100644
--- a/arch/arm/mach-s3c2440/mach-anubis.c
+++ b/arch/arm/mach-s3c2440/mach-anubis.c
@@ -487,5 +487,5 @@ MACHINE_START(ANUBIS, "Simtec-Anubis")
         .init_machine   = anubis_init,
         .init_irq       = s3c24xx_init_irq,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-at2440evb.c b/arch/arm/mach-s3c2440/mach-at2440evb.c
index d6a9763110cd..d7ae49c90118 100644
--- a/arch/arm/mach-s3c2440/mach-at2440evb.c
+++ b/arch/arm/mach-s3c2440/mach-at2440evb.c
@@ -222,5 +222,5 @@ MACHINE_START(AT2440EVB, "AT2440EVB")
         .init_machine   = at2440evb_init,
         .init_irq       = s3c24xx_init_irq,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
index 5859e609d28c..9a4a5bc008e6 100644
--- a/arch/arm/mach-s3c2440/mach-gta02.c
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
@@ -601,5 +601,5 @@ MACHINE_START(NEO1973_GTA02, "GTA02")
         .init_irq       = s3c24xx_init_irq,
         .init_machine   = gta02_machine_init,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-mini2440.c b/arch/arm/mach-s3c2440/mach-mini2440.c
index adbbb85bc4cd..5d66fb218a41 100644
--- a/arch/arm/mach-s3c2440/mach-mini2440.c
+++ b/arch/arm/mach-s3c2440/mach-mini2440.c
@@ -701,5 +701,5 @@ MACHINE_START(MINI2440, "MINI2440")
         .init_machine   = mini2440_init,
         .init_irq       = s3c24xx_init_irq,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-nexcoder.c b/arch/arm/mach-s3c2440/mach-nexcoder.c
index 40eaf844bc1f..5198e3e1c5be 100644
--- a/arch/arm/mach-s3c2440/mach-nexcoder.c
+++ b/arch/arm/mach-s3c2440/mach-nexcoder.c
@@ -158,5 +158,5 @@ MACHINE_START(NEXCODER_2440, "NexVision - Nexcoder 2440")
         .init_machine   = nexcoder_init,
         .init_irq       = s3c24xx_init_irq,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-osiris.c b/arch/arm/mach-s3c2440/mach-osiris.c
index 4c480ef734f6..c5daeb612a88 100644
--- a/arch/arm/mach-s3c2440/mach-osiris.c
+++ b/arch/arm/mach-s3c2440/mach-osiris.c
@@ -436,5 +436,5 @@ MACHINE_START(OSIRIS, "Simtec-OSIRIS")
         .init_irq       = s3c24xx_init_irq,
         .init_machine   = osiris_init,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-rx1950.c b/arch/arm/mach-s3c2440/mach-rx1950.c
index 80077f6472ee..6f68abf44fab 100644
--- a/arch/arm/mach-s3c2440/mach-rx1950.c
+++ b/arch/arm/mach-s3c2440/mach-rx1950.c
@@ -822,5 +822,5 @@ MACHINE_START(RX1950, "HP iPAQ RX1950")
         .init_irq = s3c24xx_init_irq,
         .init_machine = rx1950_init_machine,
         .timer = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-rx3715.c b/arch/arm/mach-s3c2440/mach-rx3715.c
index 20103bafbd4b..56af35447598 100644
--- a/arch/arm/mach-s3c2440/mach-rx3715.c
+++ b/arch/arm/mach-s3c2440/mach-rx3715.c
@@ -213,5 +213,5 @@ MACHINE_START(RX3715, "IPAQ-RX3715")
         .init_irq       = rx3715_init_irq,
         .init_machine   = rx3715_init_machine,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/mach-smdk2440.c b/arch/arm/mach-s3c2440/mach-smdk2440.c
index 1deb60d12a60..83a1036d7dcb 100644
--- a/arch/arm/mach-s3c2440/mach-smdk2440.c
+++ b/arch/arm/mach-s3c2440/mach-smdk2440.c
@@ -183,5 +183,5 @@ MACHINE_START(S3C2440, "SMDK2440")
         .map_io         = smdk2440_map_io,
         .init_machine   = smdk2440_machine_init,
         .timer          = &s3c24xx_timer,
-        .restart        = s3c2440_restart,
+        .restart        = s3c244x_restart,
 MACHINE_END
diff --git a/arch/arm/mach-s3c2440/s3c2440.c b/arch/arm/mach-s3c2440/s3c2440.c
index 517623a09fc5..2b3dddb49af7 100644
--- a/arch/arm/mach-s3c2440/s3c2440.c
+++ b/arch/arm/mach-s3c2440/s3c2440.c
@@ -35,7 +35,6 @@
 #include <plat/cpu.h>
 #include <plat/s3c244x.h>
 #include <plat/pm.h>
-#include <plat/watchdog-reset.h>
 
 #include <plat/gpio-core.h>
 #include <plat/gpio-cfg.h>
@@ -74,15 +73,3 @@ void __init s3c2440_map_io(void)
         s3c24xx_gpiocfg_default.set_pull = s3c24xx_gpio_setpull_1up;
         s3c24xx_gpiocfg_default.get_pull = s3c24xx_gpio_getpull_1up;
 }
-
-void s3c2440_restart(char mode, const char *cmd)
-{
-        if (mode == 's') {
-                soft_restart(0);
-        }
-
-        arch_wdt_reset();
-
-        /* we'll take a jump through zero as a poor second */
-        soft_restart(0);
-}
diff --git a/arch/arm/mach-s3c2440/s3c244x.c b/arch/arm/mach-s3c2440/s3c244x.c
index 36bc60f61d0a..d15852f642b7 100644
--- a/arch/arm/mach-s3c2440/s3c244x.c
+++ b/arch/arm/mach-s3c2440/s3c244x.c
@@ -46,6 +46,7 @@
 #include <plat/pm.h>
 #include <plat/pll.h>
 #include <plat/nand-core.h>
+#include <plat/watchdog-reset.h>
 
 static struct map_desc s3c244x_iodesc[] __initdata = {
         IODESC_ENT(CLKPWR),
@@ -196,3 +197,14 @@ struct syscore_ops s3c244x_pm_syscore_ops = {
         .suspend        = s3c244x_suspend,
         .resume         = s3c244x_resume,
 };
+
+void s3c244x_restart(char mode, const char *cmd)
+{
+        if (mode == 's')
+                soft_restart(0);
+
+        arch_wdt_reset();
+
+        /* we'll take a jump through zero as a poor second */
+        soft_restart(0);
+}
diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c
index 33dad1da9310..12c431f3443f 100644
--- a/arch/arm/mach-shmobile/board-ag5evm.c
+++ b/arch/arm/mach-shmobile/board-ag5evm.c
@@ -38,6 +38,7 @@
 #include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mfd/tmio.h>
 #include <linux/sh_clk.h>
+#include <linux/videodev2.h>
 #include <video/sh_mobile_lcdc.h>
 #include <video/sh_mipi_dsi.h>
 #include <sound/sh_fsi.h>
diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index d4cc2dec5734..82483d5f200c 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -801,7 +801,7 @@ static struct fsi_ak4642_info fsi2_ak4643_info = {
 static struct platform_device fsi_ak4643_device = {
         .name   = "fsi-ak4642-audio",
         .dev    = {
-                .platform_data  = &fsi_info,
+                .platform_data  = &fsi2_ak4643_info,
         },
 };
 
diff --git a/arch/arm/mach-shmobile/board-bonito.c b/arch/arm/mach-shmobile/board-bonito.c
index fb90f0898d9c..c79baa9ef61b 100644
--- a/arch/arm/mach-shmobile/board-bonito.c
+++ b/arch/arm/mach-shmobile/board-bonito.c
@@ -27,6 +27,7 @@
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 #include <linux/smsc911x.h>
+#include <linux/videodev2.h>
 #include <mach/common.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -241,7 +242,7 @@ static struct sh_mobile_lcdc_info lcdc0_info = {
         .clock_source   = LCDC_CLK_BUS,
         .ch[0] = {
                 .chan                   = LCDC_CHAN_MAINLCD,
-                .bpp                    = 16,
+                .fourcc = V4L2_PIX_FMT_RGB565,
                 .interface_type         = RGB24,
                 .clock_divider          = 5,
                 .flags                  = 0,
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index e761b280a602..911c6ec49c2d 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -1346,6 +1346,10 @@ static struct map_desc mackerel_io_desc[] __initdata = {
 static void __init mackerel_map_io(void)
 {
         iotable_init(mackerel_io_desc, ARRAY_SIZE(mackerel_io_desc));
+        /* DMA memory at 0xff200000 - 0xffdfffff. The default 2MB size isn't
+         * enough to allocate the frame buffer memory.
+         */
+        init_consistent_dma_size(12 << 20);
 
         /* setup early devices and console here as well */
         sh7372_add_early_devices();
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 52af00446a63..c59e8b892d6b 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -5,7 +5,7 @@ config UX500_SOC_COMMON
         default y
         select ARM_GIC
         select HAS_MTU
-        select ARM_ERRATA_753970
+        select PL310_ERRATA_753970
         select ARM_ERRATA_754322
         select ARM_ERRATA_764369
 
diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig
index 9b3d0fbaee72..88c3ba151e87 100644
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -7,7 +7,7 @@ config ARCH_VEXPRESS_CA9X4
         select ARM_GIC
         select ARM_ERRATA_720789
         select ARM_ERRATA_751472
-        select ARM_ERRATA_753970
+        select PL310_ERRATA_753970
         select HAVE_SMP
         select MIGHT_HAVE_CACHE_L2X0
 
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 0404ccbb8aa3..f1c8486f7501 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -230,9 +230,7 @@ __v7_setup:
         mcreq   p15, 0, r10, c15, c0, 1         @ write diagnostic register
 #endif
 #ifdef CONFIG_ARM_ERRATA_743622
-        teq     r6, #0x20                       @ present in r2p0
-        teqne   r6, #0x21                       @ present in r2p1
-        teqne   r6, #0x22                       @ present in r2p2
+        teq     r5, #0x00200000                 @ only present in r2p*
         mrceq   p15, 0, r10, c15, c0, 1         @ read diagnostic register
         orreq   r10, r10, #1 << 6               @ set bit #6
         mcreq   p15, 0, r10, c15, c0, 1         @ write diagnostic register
diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h
index 2efd6454bce0..37bbbbb981b2 100644
--- a/arch/arm/plat-omap/include/plat/irqs.h
+++ b/arch/arm/plat-omap/include/plat/irqs.h
@@ -428,8 +428,16 @@
 #define OMAP_GPMC_NR_IRQS       8
 #define OMAP_GPMC_IRQ_END       (OMAP_GPMC_IRQ_BASE + OMAP_GPMC_NR_IRQS)
 
+/* PRCM IRQ handler */
+#ifdef CONFIG_ARCH_OMAP2PLUS
+#define OMAP_PRCM_IRQ_BASE      (OMAP_GPMC_IRQ_END)
+#define OMAP_PRCM_NR_IRQS       64
+#define OMAP_PRCM_IRQ_END       (OMAP_PRCM_IRQ_BASE + OMAP_PRCM_NR_IRQS)
+#else
+#define OMAP_PRCM_IRQ_END       OMAP_GPMC_IRQ_END
+#endif
 
-#define NR_IRQS                 OMAP_GPMC_IRQ_END
+#define NR_IRQS                 OMAP_PRCM_IRQ_END
 
 #define OMAP_IRQ_BIT(irq)       (1 << ((irq) % 32))
 
diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
index 9fe35348e03b..2bab4c99a234 100644
--- a/arch/arm/plat-s3c24xx/dma.c
+++ b/arch/arm/plat-s3c24xx/dma.c
@@ -1249,7 +1249,7 @@ static void s3c2410_dma_resume(void)
         struct s3c2410_dma_chan *cp = s3c2410_chans + dma_channels - 1;
         int channel;
 
-        for (channel = dma_channels - 1; channel >= 0; cp++, channel--)
+        for (channel = dma_channels - 1; channel >= 0; cp--, channel--)
                 s3c2410_dma_resume_chan(cp);
 }
 
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
index f10768e988d4..d21d744e4d99 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -1409,7 +1409,7 @@ void __init s5p_ehci_set_platdata(struct s5p_ehci_platdata *pd)
 
 #ifdef CONFIG_S3C_DEV_USB_HSOTG
 static struct resource s3c_usb_hsotg_resources[] = {
-        [0] = DEFINE_RES_MEM(S3C_PA_USB_HSOTG, SZ_16K),
+        [0] = DEFINE_RES_MEM(S3C_PA_USB_HSOTG, SZ_128K),
         [1] = DEFINE_RES_IRQ(IRQ_OTG),
 };
 
diff --git a/arch/arm/plat-spear/time.c b/arch/arm/plat-spear/time.c
index 0c77e4298675..abb5bdecd509 100644
--- a/arch/arm/plat-spear/time.c
+++ b/arch/arm/plat-spear/time.c
@@ -145,11 +145,13 @@ static void clockevent_set_mode(enum clock_event_mode mode,
 static int clockevent_next_event(unsigned long cycles,
                                  struct clock_event_device *clk_event_dev)
 {
-        u16 val;
+        u16 val = readw(gpt_base + CR(CLKEVT));
+
+        if (val & CTRL_ENABLE)
+                writew(val & ~CTRL_ENABLE, gpt_base + CR(CLKEVT));
 
         writew(cycles, gpt_base + LOAD(CLKEVT));
 
-        val = readw(gpt_base + CR(CLKEVT));
         val |= CTRL_ENABLE | CTRL_INT_ENABLE;
         writew(val, gpt_base + CR(CLKEVT));