From b05b22f9e826ee6a47d74760a9dcc56252bc0da4 Mon Sep 17 00:00:00 2001
From: shengfei Xu <xsf@rock-chips.com>
Date: Mon, 1 Feb 2021 17:39:59 +0800
Subject: [PATCH] mfd: rk808: config sleep pin polarity active need delay 2ms

Signed-off-by: shengfei Xu <xsf@rock-chips.com>
Change-Id: I404265384c2bc49274646cf749aa8ccf37b0899f
---
 drivers/mfd/rk808.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index 84eadc7bc0ee..58e3dcb991bc 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -821,6 +821,8 @@ static void rk817_shutdown_prepare(void)
 				 RK817_SLPPIN_FUNC_MSK, SLPPIN_DN_FUN);
 	if (ret)
 		dev_err(&rk808_i2c_client->dev, "Failed to shutdown device!\n");
+	/* pmic need the SCL clock to synchronize register */
+	mdelay(2);
 }
 
 static void rk818_device_shutdown(void)