3 files changed, 34 insertions, 26 deletions

diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index d2adcdda23cf..bd9e32187eab 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -17,7 +17,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
-#include <linux/sysdev.h>
+#include <linux/syscore_ops.h>
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/io.h>
@@ -1372,9 +1372,7 @@ static const struct dev_pm_ops omap_mpuio_dev_pm_ops = {
 	.resume_noirq = omap_mpuio_resume_noirq,
 };
 
-/* use platform_driver for this, now that there's no longer any
- * point to sys_device (other than not disturbing old code).
- */
+/* use platform_driver for this. */
 static struct platform_driver omap_mpuio_driver = {
 	.driver		= {
 		.name	= "mpuio",
@@ -1745,7 +1743,7 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev)
 }
 
 #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS)
-static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg)
+static int omap_gpio_suspend(void)
 {
 	int i;
 
@@ -1795,12 +1793,12 @@ static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg)
 	return 0;
 }
 
-static int omap_gpio_resume(struct sys_device *dev)
+static void omap_gpio_resume(void)
 {
 	int i;
 
 	if (!cpu_class_is_omap2() && !cpu_is_omap16xx())
-		return 0;
+		return;
 
 	for (i = 0; i < gpio_bank_count; i++) {
 		struct gpio_bank *bank = &gpio_bank[i];
@@ -1836,21 +1834,13 @@ static int omap_gpio_resume(struct sys_device *dev)
 		__raw_writel(bank->saved_wakeup, wake_set);
 		spin_unlock_irqrestore(&bank->lock, flags);
 	}
-
-	return 0;
 }
 
-static struct sysdev_class omap_gpio_sysclass = {
-	.name		= "gpio",
+static struct syscore_ops omap_gpio_syscore_ops = {
 	.suspend	= omap_gpio_suspend,
 	.resume		= omap_gpio_resume,
 };
 
-static struct sys_device omap_gpio_device = {
-	.id		= 0,
-	.cls		= &omap_gpio_sysclass,
-};
-
 #endif
 
 #ifdef CONFIG_ARCH_OMAP2PLUS
@@ -2108,21 +2098,14 @@ postcore_initcall(omap_gpio_drv_reg);
 
 static int __init omap_gpio_sysinit(void)
 {
-	int ret = 0;
-
 	mpuio_init();
 
 #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2PLUS)
-	if (cpu_is_omap16xx() || cpu_class_is_omap2()) {
-		if (ret == 0) {
-			ret = sysdev_class_register(&omap_gpio_sysclass);
-			if (ret == 0)
-				ret = sysdev_register(&omap_gpio_device);
-		}
-	}
+	if (cpu_is_omap16xx() || cpu_class_is_omap2())
+		register_syscore_ops(&omap_gpio_syscore_ops);
 #endif
 
-	return ret;
+	return 0;
 }
 
 arch_initcall(omap_gpio_sysinit);
diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c
index 8a51fd58f656..34fc31ee9081 100644
--- a/arch/arm/plat-omap/iommu.c
+++ b/arch/arm/plat-omap/iommu.c
@@ -793,6 +793,8 @@ static irqreturn_t iommu_fault_handler(int irq, void *data)
 	clk_enable(obj->clk);
 	errs = iommu_report_fault(obj, &da);
 	clk_disable(obj->clk);
+	if (errs == 0)
+		return IRQ_HANDLED;
 
 	/* Fault callback or TLB/PTE Dynamic loading */
 	if (obj->isr && !obj->isr(obj, da, errs, obj->isr_priv))
diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index 9bbda9acb73b..a37b8eb65b76 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -536,6 +536,28 @@ int omap_early_device_register(struct omap_device *od)
 	return 0;
 }
 
+static int _od_runtime_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+
+	return omap_device_idle(pdev);
+}
+
+static int _od_runtime_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+
+	return omap_device_enable(pdev);
+}
+
+static struct dev_power_domain omap_device_power_domain = {
+	.ops = {
+		.runtime_suspend = _od_runtime_suspend,
+		.runtime_resume = _od_runtime_resume,
+		USE_PLATFORM_PM_SLEEP_OPS
+	}
+};
+
 /**
  * omap_device_register - register an omap_device with one omap_hwmod
  * @od: struct omap_device * to register
@@ -549,6 +571,7 @@ int omap_device_register(struct omap_device *od)
 	pr_debug("omap_device: %s: registering\n", od->pdev.name);
 
 	od->pdev.dev.parent = &omap_device_parent;
+	od->pdev.dev.pwr_domain = &omap_device_power_domain;
 	return platform_device_register(&od->pdev);
 }