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rtc: mt6397: implement suspend/resume function in rtc-mt6397 driver

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Implement the suspend/resume function in order to control rtc's irq_wake flag and handle as wakeup source.

Signed-off-by: Henry Chen <[email protected]>
Acked-by: Eddie Huang <[email protected]>
Signed-off-by: Alexandre Belloni <[email protected]>
This commit is contained in:
Henry Chen 2015-07-30 22:53:14 +08:00 • committed by Alexandre Belloni
commit d7f9777de8
1 changed files with 26 additions and 0 deletions
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26
drivers/rtc/rtc-mt6397.c
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@ -373,6 +373,31 @@ static int mtk_rtc_remove(struct platform_device *pdev)
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int mt6397_rtc_suspend(struct device *dev)
{
struct mt6397_rtc *rtc = dev_get_drvdata(dev);
if (device_may_wakeup(dev))
enable_irq_wake(rtc->irq);
return 0;
}
static int mt6397_rtc_resume(struct device *dev)
{
struct mt6397_rtc *rtc = dev_get_drvdata(dev);
if (device_may_wakeup(dev))
disable_irq_wake(rtc->irq);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(mt6397_pm_ops, mt6397_rtc_suspend,
mt6397_rtc_resume);
static const struct of_device_id mt6397_rtc_of_match[] = {
{ .compatible = "mediatek,mt6397-rtc", },
{ }
@ -382,6 +407,7 @@ static struct platform_driver mtk_rtc_driver = {
.driver = {
.name = "mt6397-rtc",
.of_match_table = mt6397_rtc_of_match,
.pm = &mt6397_pm_ops,
},
.probe = mtk_rtc_probe,
.remove = mtk_rtc_remove,