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rtc: max8925: Add function to work as wakeup source

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Signed-off-by: Kevin Liu <kliu5@marvell.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Kevin Liu 2012-01-04 15:14:26 +08:00 committed by Samuel Ortiz
parent ba74e80eba
commit 74d836c414
1 changed files with 26 additions and 0 deletions
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26
drivers/rtc/rtc-max8925.c
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@ -261,6 +261,8 @@ static int __devinit max8925_rtc_probe(struct platform_device *pdev)
/* XXX - isn't this redundant? */
platform_set_drvdata(pdev, info);
device_init_wakeup(&pdev->dev, 1);
info->rtc_dev = rtc_device_register("max8925-rtc", &pdev->dev,
&max8925_rtc_ops, THIS_MODULE);
ret = PTR_ERR(info->rtc_dev);
@ -290,10 +292,34 @@ static int __devexit max8925_rtc_remove(struct platform_device *pdev)
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int max8925_rtc_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
if (device_may_wakeup(dev))
chip->wakeup_flag |= 1 << MAX8925_IRQ_RTC_ALARM0;
return 0;
}
static int max8925_rtc_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
if (device_may_wakeup(dev))
chip->wakeup_flag &= ~(1 << MAX8925_IRQ_RTC_ALARM0);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(max8925_rtc_pm_ops, max8925_rtc_suspend, max8925_rtc_resume);
static struct platform_driver max8925_rtc_driver = {
.driver = {
.name = "max8925-rtc",
.owner = THIS_MODULE,
.pm = &max8925_rtc_pm_ops,
},
.probe = max8925_rtc_probe,
.remove = __devexit_p(max8925_rtc_remove),