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rtc: rtc-sh: use set_irq_wake()

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Modify the sh_rtc driver to use set_irq_wake() during suspend
and resume. These functions are used to enable the rtc interrupts
in the interrupt controller so the rtc can be used to wakeup the
system from suspend.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2009-04-01 14:45:17 +00:00 committed by Paul Mundt
parent 4ba50df685
commit faa9fa8e44
1 changed files with 36 additions and 0 deletions
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36
drivers/rtc/rtc-sh.c
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@ -795,10 +795,46 @@ static int __devexit sh_rtc_remove(struct platform_device *pdev)
return 0; return 0;
} }
static void sh_rtc_set_irq_wake(struct device *dev, int enabled)
{
struct platform_device *pdev = to_platform_device(dev);
struct sh_rtc *rtc = platform_get_drvdata(pdev);
set_irq_wake(rtc->periodic_irq, enabled);
if (rtc->carry_irq > 0) {
set_irq_wake(rtc->carry_irq, enabled);
set_irq_wake(rtc->alarm_irq, enabled);
}
}
static int sh_rtc_suspend(struct device *dev)
{
if (device_may_wakeup(dev))
sh_rtc_set_irq_wake(dev, 1);
return 0;
}
static int sh_rtc_resume(struct device *dev)
{
if (device_may_wakeup(dev))
sh_rtc_set_irq_wake(dev, 0);
return 0;
}
static struct dev_pm_ops sh_rtc_dev_pm_ops = {
.suspend = sh_rtc_suspend,
.resume = sh_rtc_resume,
};
static struct platform_driver sh_rtc_platform_driver = { static struct platform_driver sh_rtc_platform_driver = {
.driver = { .driver = {
.name = DRV_NAME, .name = DRV_NAME,
.owner = THIS_MODULE, .owner = THIS_MODULE,
.pm = &sh_rtc_dev_pm_ops,
}, },
.probe = sh_rtc_probe, .probe = sh_rtc_probe,
.remove = __devexit_p(sh_rtc_remove), .remove = __devexit_p(sh_rtc_remove),