From 700dda353988fcbd3861a053a5b489b39b3c93f5 Mon Sep 17 00:00:00 2001
From: Xu Xuehui <xxh@rock-chips.com>
Date: Sun, 3 Mar 2024 15:57:08 +0800
Subject: [PATCH] rtc: s35390a: enable 32K status register

Signed-off-by: Xu Xuehui <xxh@rock-chips.com>
Change-Id: Ie723fa0b3656d2862aba1e56b2fcfa4e77d6027e
---
 drivers/rtc/rtc-s35390a.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c
index 81d97b1d3159..79c675a608a6 100644
--- a/drivers/rtc/rtc-s35390a.c
+++ b/drivers/rtc/rtc-s35390a.c
@@ -47,6 +47,7 @@
 #define S35390A_INT2_MODE_ALARM		BIT(1) /* INT2AE */
 #define S35390A_INT2_MODE_PMIN_EDG	BIT(2) /* INT2ME */
 #define S35390A_INT2_MODE_FREQ		BIT(3) /* INT2FE */
+#define S35390A_INT2_MODE_32K		BIT(4) /* 32KE */
 #define S35390A_INT2_MODE_PMIN		(BIT(3) | BIT(2)) /* INT2FE | INT2ME */
 
 static const struct i2c_device_id s35390a_id[] = {
@@ -481,6 +482,14 @@ static int s35390a_probe(struct i2c_client *client)
 		}
 	}
 
+	/* enable 32kE status register */
+	buf = S35390A_INT2_MODE_32K;
+	err = s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, &buf, sizeof(buf));
+	if (err < 0) {
+		dev_err(dev, "s35390a 32Ke enable fail");
+		return err;
+	}
+
 	device_set_wakeup_capable(dev, 1);
 
 	s35390a->rtc->ops = &s35390a_rtc_ops;