[PATCH] rtc: mt6397: implement suspend/resume function in rtc-mt6397 driver
From: Henry Chen <hidden>
Date: 2015-07-30 14:53:35
Also in:
linux-mediatek, linux-rtc, lkml
Subsystem:
arm/mediatek rtc driver, real time clock (rtc) subsystem, the rest · Maintainers:
Eddie Huang, Sean Wang, Alexandre Belloni, Linus Torvalds
Implement the suspend/resume function in order to control rtc's irq_wake flag and handle as wakeup source. Signed-off-by: Henry Chen <redacted> --- drivers/rtc/rtc-mt6397.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c
index c0090b6..9f6c9f8 100644
--- a/drivers/rtc/rtc-mt6397.c
+++ b/drivers/rtc/rtc-mt6397.c@@ -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,
--
1.8.1.1.dirty