linux-kernel - [PATCH 4/4] hwmon / exynos4_tmu: Use struct dev_pm

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Date:	Sat, 7 Jul 2012 23:06:08 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Linux PM list <linux-pm@...r.kernel.org>,
	Hans de Goede <hdegoede@...hat.com>,
	Alistair John Strachan <alistair@...zero.co.uk>,
	lm-sensors@...sensors.org, Jean Delvare <khali@...ux-fr.org>,
	Guenter Roeck <linux@...ck-us.net>,
	Kukjin Kim <kgene.kim@...sung.com>
Subject: [PATCH 4/4] hwmon / exynos4_tmu: Use struct dev_pm_ops for power management

From: Rafael J. Wysocki <rjw@...k.pl>

Make the Exynos4 TMU driver define its PM callbacks through
a struct dev_pm_ops object rather than by using legacy PM hooks
in struct platform_driver.

Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
 drivers/hwmon/exynos4_tmu.c |   17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

Index: linux/drivers/hwmon/exynos4_tmu.c
===================================================================
--- linux.orig/drivers/hwmon/exynos4_tmu.c
+++ linux/drivers/hwmon/exynos4_tmu.c
@@ -476,34 +476,37 @@ static int __devexit exynos4_tmu_remove(
 }
 
 #ifdef CONFIG_PM
-static int exynos4_tmu_suspend(struct platform_device *pdev, pm_message_t state)
+static int exynos4_tmu_suspend(struct device *dev)
 {
-	exynos4_tmu_control(pdev, false);
+	exynos4_tmu_control(to_platform_device(dev), false);
 
 	return 0;
 }
 
-static int exynos4_tmu_resume(struct platform_device *pdev)
+static int exynos4_tmu_resume(struct device *dev)
 {
+	struct platform_device *pdev = to_platform_device(dev);
+
 	exynos4_tmu_initialize(pdev);
 	exynos4_tmu_control(pdev, true);
 
 	return 0;
 }
+
+static SIMPLE_DEV_PM_OPS(exynos4_tmu_pm, exynos4_tmu_suspend, exynos4_tmu_resume);
+#define EXYNOS4_TMU_PM	(&exynos4_tmu_pm)
 #else
-#define exynos4_tmu_suspend NULL
-#define exynos4_tmu_resume NULL
+#define EXYNOS4_TMU_PM	NULL
 #endif
 
 static struct platform_driver exynos4_tmu_driver = {
 	.driver = {
 		.name   = "exynos4-tmu",
 		.owner  = THIS_MODULE,
+		.pm     = EXYNOS4_TMU_PM,
 	},
 	.probe = exynos4_tmu_probe,
 	.remove	= __devexit_p(exynos4_tmu_remove),
-	.suspend = exynos4_tmu_suspend,
-	.resume = exynos4_tmu_resume,
 };
 
 module_platform_driver(exynos4_tmu_driver);

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