linux-kernel - [PATCH/RFC 1/6] ARM: sh-mobile: runtime PM: convert to device powerdomains

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Date:	Wed,  6 Apr 2011 17:02:44 -0700
From:	Kevin Hilman <khilman@...com>
To:	linux-arm-kernel@...ts.infradead.org, linux-omap@...r.kernel.org,
	linux-sh@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Magnus Damm <magnus.damm@...il.com>,
	"Rafael J. Wysocki" <rjw@...e.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Magnus Damm <damm@...nsource.se>,
	Paul Mundt <lethal@...ux-sh.org>
Subject: [PATCH/RFC 1/6] ARM: sh-mobile: runtime PM: convert to device powerdomains

Remove the deprecated use of weak platform_bus symbols in favor of using
the new device power domains.

Cc: Magnus Damm <damm@...nsource.se>
Cc: Paul Mundt <lethal@...ux-sh.org>
Signed-off-by: Kevin Hilman <khilman@...com>
---
 arch/arm/mach-shmobile/pm_runtime.c |   20 +++++++++++++++-----
 1 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-shmobile/pm_runtime.c b/arch/arm/mach-shmobile/pm_runtime.c
index 94912d3..6c75c3f 100644
--- a/arch/arm/mach-shmobile/pm_runtime.c
+++ b/arch/arm/mach-shmobile/pm_runtime.c
@@ -66,7 +66,7 @@ static void platform_pm_runtime_bug(struct device *dev,
 		dev_err(dev, "runtime pm suspend before resume\n");
 }
 
-int platform_pm_runtime_suspend(struct device *dev)
+static int platform_pm_runtime_suspend(struct device *dev)
 {
 	struct pm_runtime_data *prd = __to_prd(dev);
 
@@ -82,7 +82,7 @@ int platform_pm_runtime_suspend(struct device *dev)
 	return 0;
 }
 
-int platform_pm_runtime_resume(struct device *dev)
+static int platform_pm_runtime_resume(struct device *dev)
 {
 	struct pm_runtime_data *prd = __to_prd(dev);
 
@@ -98,12 +98,20 @@ int platform_pm_runtime_resume(struct device *dev)
 	return 0;
 }
 
-int platform_pm_runtime_idle(struct device *dev)
+static int platform_pm_runtime_idle(struct device *dev)
 {
 	/* suspend synchronously to disable clocks immediately */
 	return pm_runtime_suspend(dev);
 }
 
+static struct dev_power_domain platform_pm_power_domain = {
+	.ops = {
+		.runtime_suspend = platform_pm_runtime_suspend,
+		.runtime_resume = platform_pm_runtime_resume,
+		.runtime_idle = platform_pm_runtime_idle,
+	},
+};
+
 static int platform_bus_notify(struct notifier_block *nb,
 			       unsigned long action, void *data)
 {
@@ -114,10 +122,12 @@ static int platform_bus_notify(struct notifier_block *nb,
 
 	if (action == BUS_NOTIFY_BIND_DRIVER) {
 		prd = devres_alloc(__devres_release, sizeof(*prd), GFP_KERNEL);
-		if (prd)
+		if (prd) {
 			devres_add(dev, prd);
-		else
+			dev->pwr_domain = &platform_pm_power_domain;
+		} else {
 			dev_err(dev, "unable to alloc memory for runtime pm\n");
+		}
 	}
 
 	return 0;
-- 
1.7.4

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