Merge branch 'power-domains' into for-linus

* power-domains:
  PM: Fix build issue in clock_ops.c for CONFIG_PM_RUNTIME unset
  PM: Revert "driver core: platform_bus: allow runtime override of dev_pm_ops"
  OMAP1 / PM: Use generic clock manipulation routines for runtime PM
  PM / Runtime: Generic clock manipulation rountines for runtime PM (v6)
  PM / Runtime: Add subsystem data field to struct dev_pm_info
  OMAP2+ / PM: move runtime PM implementation to use device power domains
  PM / Platform: Use generic runtime PM callbacks directly
  shmobile: Use power domains for platform runtime PM
  PM: Export platform bus type's default PM callbacks
  PM: Make power domain callbacks take precedence over subsystem ones

1 files changed, 17 insertions, 128 deletions

diff --git a/arch/arm/mach-shmobile/pm_runtime.c b/arch/arm/mach-shmobile/pm_runtime.c
index 94912d3944d3..2d1b67a59e4a 100644
--- a/arch/arm/mach-shmobile/pm_runtime.c
+++ b/arch/arm/mach-shmobile/pm_runtime.c
@@ -18,152 +18,41 @@
 #include <linux/clk.h>
 #include <linux/sh_clk.h>
 #include <linux/bitmap.h>
+#include <linux/slab.h>
 
 #ifdef CONFIG_PM_RUNTIME
-#define BIT_ONCE 0
-#define BIT_ACTIVE 1
-#define BIT_CLK_ENABLED 2
 
-struct pm_runtime_data {
-	unsigned long flags;
-	struct clk *clk;
-};
-
-static void __devres_release(struct device *dev, void *res)
-{
-	struct pm_runtime_data *prd = res;
-
-	dev_dbg(dev, "__devres_release()\n");
-
-	if (test_bit(BIT_CLK_ENABLED, &prd->flags))
-		clk_disable(prd->clk);
-
-	if (test_bit(BIT_ACTIVE, &prd->flags))
-		clk_put(prd->clk);
-}
-
-static struct pm_runtime_data *__to_prd(struct device *dev)
-{
-	return devres_find(dev, __devres_release, NULL, NULL);
-}
-
-static void platform_pm_runtime_init(struct device *dev,
-				     struct pm_runtime_data *prd)
-{
-	if (prd && !test_and_set_bit(BIT_ONCE, &prd->flags)) {
-		prd->clk = clk_get(dev, NULL);
-		if (!IS_ERR(prd->clk)) {
-			set_bit(BIT_ACTIVE, &prd->flags);
-			dev_info(dev, "clocks managed by runtime pm\n");
-		}
-	}
-}
-
-static void platform_pm_runtime_bug(struct device *dev,
-				    struct pm_runtime_data *prd)
-{
-	if (prd && !test_and_set_bit(BIT_ONCE, &prd->flags))
-		dev_err(dev, "runtime pm suspend before resume\n");
-}
-
-int platform_pm_runtime_suspend(struct device *dev)
-{
-	struct pm_runtime_data *prd = __to_prd(dev);
-
-	dev_dbg(dev, "platform_pm_runtime_suspend()\n");
-
-	platform_pm_runtime_bug(dev, prd);
-
-	if (prd && test_bit(BIT_ACTIVE, &prd->flags)) {
-		clk_disable(prd->clk);
-		clear_bit(BIT_CLK_ENABLED, &prd->flags);
-	}
-
-	return 0;
-}
-
-int platform_pm_runtime_resume(struct device *dev)
-{
-	struct pm_runtime_data *prd = __to_prd(dev);
-
-	dev_dbg(dev, "platform_pm_runtime_resume()\n");
-
-	platform_pm_runtime_init(dev, prd);
-
-	if (prd && test_bit(BIT_ACTIVE, &prd->flags)) {
-		clk_enable(prd->clk);
-		set_bit(BIT_CLK_ENABLED, &prd->flags);
-	}
-
-	return 0;
-}
-
-int platform_pm_runtime_idle(struct device *dev)
+static int default_platform_runtime_idle(struct device *dev)
 {
 	/* suspend synchronously to disable clocks immediately */
 	return pm_runtime_suspend(dev);
 }
 
-static int platform_bus_notify(struct notifier_block *nb,
-			       unsigned long action, void *data)
-{
-	struct device *dev = data;
-	struct pm_runtime_data *prd;
-
-	dev_dbg(dev, "platform_bus_notify() %ld !\n", action);
-
-	if (action == BUS_NOTIFY_BIND_DRIVER) {
-		prd = devres_alloc(__devres_release, sizeof(*prd), GFP_KERNEL);
-		if (prd)
-			devres_add(dev, prd);
-		else
-			dev_err(dev, "unable to alloc memory for runtime pm\n");
-	}
-
-	return 0;
-}
-
-#else /* CONFIG_PM_RUNTIME */
-
-static int platform_bus_notify(struct notifier_block *nb,
-			       unsigned long action, void *data)
-{
-	struct device *dev = data;
-	struct clk *clk;
+static struct dev_power_domain default_power_domain = {
+	.ops = {
+		.runtime_suspend = pm_runtime_clk_suspend,
+		.runtime_resume = pm_runtime_clk_resume,
+		.runtime_idle = default_platform_runtime_idle,
+		USE_PLATFORM_PM_SLEEP_OPS
+	},
+};
 
-	dev_dbg(dev, "platform_bus_notify() %ld !\n", action);
+#define DEFAULT_PWR_DOMAIN_PTR	(&default_power_domain)
 
-	switch (action) {
-	case BUS_NOTIFY_BIND_DRIVER:
-		clk = clk_get(dev, NULL);
-		if (!IS_ERR(clk)) {
-			clk_enable(clk);
-			clk_put(clk);
-			dev_info(dev, "runtime pm disabled, clock forced on\n");
-		}
-		break;
-	case BUS_NOTIFY_UNBOUND_DRIVER:
-		clk = clk_get(dev, NULL);
-		if (!IS_ERR(clk)) {
-			clk_disable(clk);
-			clk_put(clk);
-			dev_info(dev, "runtime pm disabled, clock forced off\n");
-		}
-		break;
-	}
+#else
 
-	return 0;
-}
+#define DEFAULT_PWR_DOMAIN_PTR	NULL
 
 #endif /* CONFIG_PM_RUNTIME */
 
-static struct notifier_block platform_bus_notifier = {
-	.notifier_call = platform_bus_notify
+static struct pm_clk_notifier_block platform_bus_notifier = {
+	.pwr_domain = DEFAULT_PWR_DOMAIN_PTR,
+	.con_ids = { NULL, },
 };
 
 static int __init sh_pm_runtime_init(void)
 {
-	bus_register_notifier(&platform_bus_type, &platform_bus_notifier);
+	pm_runtime_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
 	return 0;
 }
 core_initcall(sh_pm_runtime_init);