diff options
Diffstat (limited to 'drivers/rtc/rtc-sa1100.c')
| -rw-r--r-- | drivers/rtc/rtc-sa1100.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c index 6f1e9a9804bc..2eb38520f0c8 100644 --- a/drivers/rtc/rtc-sa1100.c +++ b/drivers/rtc/rtc-sa1100.c @@ -337,6 +337,8 @@ static int sa1100_rtc_probe(struct platform_device *pdev) if (IS_ERR(rtc)) return PTR_ERR(rtc); + device_init_wakeup(&pdev->dev, 1); + platform_set_drvdata(pdev, rtc); return 0; @@ -352,9 +354,38 @@ static int sa1100_rtc_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM +static int sa1100_rtc_suspend(struct platform_device *pdev, pm_message_t state) +{ + if (pdev->dev.power.power_state.event != state.event) { + if (state.event == PM_EVENT_SUSPEND && + device_may_wakeup(&pdev->dev)) + enable_irq_wake(IRQ_RTCAlrm); + + pdev->dev.power.power_state = state; + } + return 0; +} + +static int sa1100_rtc_resume(struct platform_device *pdev) +{ + if (pdev->dev.power.power_state.event != PM_EVENT_ON) { + if (device_may_wakeup(&pdev->dev)) + disable_irq_wake(IRQ_RTCAlrm); + pdev->dev.power.power_state = PMSG_ON; + } + return 0; +} +#else +#define sa1100_rtc_suspend NULL +#define sa1100_rtc_resume NULL +#endif + static struct platform_driver sa1100_rtc_driver = { .probe = sa1100_rtc_probe, .remove = sa1100_rtc_remove, + .suspend = sa1100_rtc_suspend, + .resume = sa1100_rtc_resume, .driver = { .name = "sa1100-rtc", }, |