Patchwork [7/8] rtc: rtc-stmp3xxx: convert stmp3xxx_rtcdrv to dev_pm_ops

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Submitter Jingoo Han
Date March 28, 2013, 8:39 a.m.
Message ID <001601ce2b8f$c333e980$499bbc80$%han@samsung.com>
Download mbox | patch
Permalink /patch/231934/
State New
Headers show

Comments

Jingoo Han - March 28, 2013, 8:39 a.m.
Instead of using legacy suspend/resume methods, using newer dev_pm_ops
structure allows better control over power management.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
---
 drivers/rtc/rtc-stmp3xxx.c |   17 ++++++++---------
 1 files changed, 8 insertions(+), 9 deletions(-)

Patch

diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c
index 98f0d3c..22f72b5 100644
--- a/drivers/rtc/rtc-stmp3xxx.c
+++ b/drivers/rtc/rtc-stmp3xxx.c
@@ -309,15 +309,15 @@  out_free:
 	return err;
 }
 
-#ifdef CONFIG_PM
-static int stmp3xxx_rtc_suspend(struct platform_device *dev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int stmp3xxx_rtc_suspend(struct device *dev)
 {
 	return 0;
 }
 
-static int stmp3xxx_rtc_resume(struct platform_device *dev)
+static int stmp3xxx_rtc_resume(struct device *dev)
 {
-	struct stmp3xxx_rtc_data *rtc_data = platform_get_drvdata(dev);
+	struct stmp3xxx_rtc_data *rtc_data = dev_get_drvdata(dev);
 
 	mxs_reset_block(rtc_data->io);
 	writel(STMP3XXX_RTC_PERSISTENT0_ALARM_EN |
@@ -326,11 +326,11 @@  static int stmp3xxx_rtc_resume(struct platform_device *dev)
 			rtc_data->io + STMP3XXX_RTC_PERSISTENT0_CLR);
 	return 0;
 }
-#else
-#define stmp3xxx_rtc_suspend	NULL
-#define stmp3xxx_rtc_resume	NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(stmp3xxx_rtc_pm_ops, stmp3xxx_rtc_suspend,
+			stmp3xxx_rtc_resume);
+
 static const struct of_device_id rtc_dt_ids[] = {
 	{ .compatible = "fsl,stmp3xxx-rtc", },
 	{ /* sentinel */ }
@@ -340,11 +340,10 @@  MODULE_DEVICE_TABLE(of, rtc_dt_ids);
 static struct platform_driver stmp3xxx_rtcdrv = {
 	.probe		= stmp3xxx_rtc_probe,
 	.remove		= stmp3xxx_rtc_remove,
-	.suspend	= stmp3xxx_rtc_suspend,
-	.resume		= stmp3xxx_rtc_resume,
 	.driver		= {
 		.name	= "stmp3xxx-rtc",
 		.owner	= THIS_MODULE,
+		.pm	= &stmp3xxx_rtc_pm_ops,
 		.of_match_table = of_match_ptr(rtc_dt_ids),
 	},
 };