linux-kernel - [PATCH v1] rtc/rtc-efi: Add wakeup support

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Message-ID: <TYWP286MB260191455377CEBD2336557EB1659@TYWP286MB2601.JPNP286.PROD.OUTLOOK.COM>
Date:   Wed, 10 Aug 2022 15:01:09 +0800
From:   Riwen Lu <luriwen@...mail.com>
To:     a.zummo@...ertech.it, alexandre.belloni@...tlin.com
Cc:     linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Riwen Lu <luriwen@...inos.cn>
Subject: [PATCH v1] rtc/rtc-efi: Add wakeup support

From: Riwen Lu <luriwen@...inos.cn>

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

Signed-off-by: Riwen Lu <luriwen@...inos.cn>

---
v1: Tested in ARM64 platform.
---
 drivers/rtc/rtc-efi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/rtc/rtc-efi.c b/drivers/rtc/rtc-efi.c
index 11850c2880ad..e991cccdb6e9 100644
--- 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);
 }
 
-- 
2.25.1