From: Henry Chen Date: Thu, 30 Jul 2015 14:53:14 +0000 (+0800) Subject: rtc: mt6397: implement suspend/resume function in rtc-mt6397 driver X-Git-Tag: firefly_0821_release~176^2~1112^2~66 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d7f9777de884daf5721211bddfd21e7c8c156b17;p=firefly-linux-kernel-4.4.55.git rtc: mt6397: implement suspend/resume function in rtc-mt6397 driver Implement the suspend/resume function in order to control rtc's irq_wake flag and handle as wakeup source. Signed-off-by: Henry Chen Acked-by: Eddie Huang Signed-off-by: Alexandre Belloni --- diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c index eab230be5a54..30c926b36361 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,