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| author | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2024-02-27 22:18:32 +0100 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2024-02-29 22:17:23 +0100 |
| commit | 787bcc982cd6f4fe81d86f31435de31db8502bd2 (patch) | |
| tree | 088085ce7b4dbc1952867836758df8f57f2f15ec /drivers/rtc | |
| parent | rtc: ds1511: set alarm offset limit (diff) | |
| download | linux-787bcc982cd6f4fe81d86f31435de31db8502bd2.tar.xz linux-787bcc982cd6f4fe81d86f31435de31db8502bd2.zip | |
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: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-pcf8523.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-pcf8523.c b/drivers/rtc/rtc-pcf8523.c index d1efde3e7a80..98b77f790b0c 100644 --- a/drivers/rtc/rtc-pcf8523.c +++ b/drivers/rtc/rtc-pcf8523.c @@ -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, |