drivers/rtc/rtc-tegra.c: use struct dev_pm_ops for power management

Make the Tegra RTC controller 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: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/drivers/rtc/rtc-tegra.c b/drivers/rtc/rtc-tegra.c
index 916802a58366452db6cff890532bfd00cf39aa5a..0ef028b54821610c3971287f0c33a364ca7ae1f1 100644 (file)
--- a/drivers/rtc/rtc-tegra.c
+++ b/drivers/rtc/rtc-tegra.c
@@ -26,6 +26,7 @@
 #include <linux/delay.h>
 #include <linux/rtc.h>
 #include <linux/platform_device.h>
+#include <linux/pm.h>
 
 /* set to 1 = busy every eight 32kHz clocks during copy of sec+msec to AHB */
 #define TEGRA_RTC_REG_BUSY                     0x004
@@ -391,10 +392,9 @@ static int __exit tegra_rtc_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM_SLEEP
-static int tegra_rtc_suspend(struct platform_device *pdev, pm_message_t state)
+static int tegra_rtc_suspend(struct device *dev)
 {
-       struct device *dev = &pdev->dev;
-       struct tegra_rtc_info *info = platform_get_drvdata(pdev);
+       struct tegra_rtc_info *info = dev_get_drvdata(dev);
 
        tegra_rtc_wait_while_busy(dev);
 
@@ -416,10 +416,9 @@ static int tegra_rtc_suspend(struct platform_device *pdev, pm_message_t state)
        return 0;
 }
 
-static int tegra_rtc_resume(struct platform_device *pdev)
+static int tegra_rtc_resume(struct device *dev)
 {
-       struct device *dev = &pdev->dev;
-       struct tegra_rtc_info *info = platform_get_drvdata(pdev);
+       struct tegra_rtc_info *info = dev_get_drvdata(dev);
 
        dev_vdbg(dev, "Resume (device_may_wakeup=%d)\n",
                device_may_wakeup(dev));
@@ -431,6 +430,8 @@ static int tegra_rtc_resume(struct platform_device *pdev)
 }
 #endif
 
+static SIMPLE_DEV_PM_OPS(tegra_rtc_pm_ops, tegra_rtc_suspend, tegra_rtc_resume);
+
 static void tegra_rtc_shutdown(struct platform_device *pdev)
 {
        dev_vdbg(&pdev->dev, "disabling interrupts.\n");
@@ -445,11 +446,8 @@ static struct platform_driver tegra_rtc_driver = {
                .name   = "tegra_rtc",
                .owner  = THIS_MODULE,
                .of_match_table = tegra_rtc_dt_match,
+               .pm     = &tegra_rtc_pm_ops,
        },
-#ifdef CONFIG_PM_SLEEP
-       .suspend        = tegra_rtc_suspend,
-       .resume         = tegra_rtc_resume,
-#endif
 };
 
 module_platform_driver_probe(tegra_rtc_driver, tegra_rtc_probe);