rtc: efi: Add wakeup support

Add wakeup support for rtc-efi, so we can wakeup from S3/S4/S5 through
rtcwake.

Signed-off-by: Riwen Lu <luriwen@kylinos.cn>
Link: https://lore.kernel.org/r/TYWP286MB260191455377CEBD2336557EB1659@TYWP286MB2601.JPNP286.PROD.OUTLOOK.COM
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-efi.c b/drivers/rtc/rtc-efi.c
index 11850c2880ad487d3e8b3306fe6057e766e40c1e..e991cccdb6e9cee46a104b03926d4f2945f34f59 100644 (file)
--- a/drivers/rtc/rtc-efi.c
+++ b/drivers/rtc/rtc-efi.c
@@ -271,6 +271,8 @@ static int __init efi_rtc_probe(struct platform_device *dev)
        clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->features);
        set_bit(RTC_FEATURE_ALARM_WAKEUP_ONLY, rtc->features);
 
+       device_init_wakeup(&dev->dev, true);
+
        return devm_rtc_register_device(rtc);
 }