Commit ae036af8 authored by Stefan Christ's avatar Stefan Christ Committed by Alexandre Belloni
Browse files

rtc: m41t80: add suspend handlers for alarm IRQ 



Allow the alarm IRQ of RTC to be used as a wakeup source for the system
suspend.

Signed-off-by: default avatarStefan Christ <s.christ@phytec.de>
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
parent e89487fe

drivers/rtc/rtc-m41t80.c

+25 −0
Original line number Diff line number Diff line
@@ -335,6 +335,30 @@ static struct rtc_class_ops m41t80_rtc_ops = { 
	.proc = m41t80_rtc_proc,

};



#ifdef CONFIG_PM_SLEEP

static int m41t80_suspend(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);



	if (client->irq >= 0 && device_may_wakeup(dev))

		enable_irq_wake(client->irq);



	return 0;

}



static int m41t80_resume(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);



	if (client->irq >= 0 && device_may_wakeup(dev))

		disable_irq_wake(client->irq);



	return 0;

}

#endif



static SIMPLE_DEV_PM_OPS(m41t80_pm, m41t80_suspend, m41t80_resume);



static ssize_t flags_show(struct device *dev,

			  struct device_attribute *attr, char *buf)

{
@@ -870,6 +894,7 @@ static int m41t80_remove(struct i2c_client *client) 
static struct i2c_driver m41t80_driver = {

	.driver = {

		.name = "rtc-m41t80",

		.pm = &m41t80_pm,

	},

	.probe = m41t80_probe,

	.remove = m41t80_remove,