Commit 787bcc98 authored by Alexandre Belloni's avatar Alexandre Belloni
Browse files

rtc: pcf8523: add suspend handlers for alarm IRQ 

Ensure the RTC is able to wake up the system from suspend.

Link: https://lore.kernel.org/r/20240227211833.1820800-1-alexandre.belloni@bootlin.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent 50891bd1

drivers/rtc/rtc-pcf8523.c

+25 −0
Original line number Diff line number Diff line
@@ -370,6 +370,30 @@ static int pcf8523_rtc_set_offset(struct device *dev, long offset) 
	return regmap_write(pcf8523->regmap, PCF8523_REG_OFFSET, value);

}



#ifdef CONFIG_PM_SLEEP

static int pcf8523_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 pcf8523_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(pcf8523_pm, pcf8523_suspend, pcf8523_resume);



static const struct rtc_class_ops pcf8523_rtc_ops = {

	.read_time = pcf8523_rtc_read_time,

	.set_time = pcf8523_rtc_set_time,
@@ -487,6 +511,7 @@ static struct i2c_driver pcf8523_driver = { 
	.driver = {

		.name = "rtc-pcf8523",

		.of_match_table = pcf8523_of_match,

		.pm = &pcf8523_pm,

	},

	.probe = pcf8523_probe,

	.id_table = pcf8523_id,