From 6bc54e69921a64e8f813de658aef645c960a2904 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 12 Nov 2007 22:49:58 +0000 Subject: [ARM] pxa/sa1100: replace wakeup support Replace wakeup support using the alarm via the SA1100 RTC driver on SA1100 and PXA platforms. This allows RTC alarm wakeup to be enabled via sysfs using the conventional attributes. Acked-by: Alessandro Zummo Signed-off-by: Russell King --- drivers/rtc/rtc-sa1100.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'drivers') 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", }, -- cgit v1.2.3-59-g8ed1b