From 463be3cb357dab7d7e4d8dcc7c15c642e10c5bef Mon Sep 17 00:00:00 2001
From: Jensen Huang <jensenhuang@friendlyarm.com>
Date: Wed, 28 Sep 2022 17:11:29 +0800
Subject: [PATCH] arm64: dts: rockchip: add enable-strobe-pulldown to emmc phy on nanopi4
Git-commit: 463be3cb357dab7d7e4d8dcc7c15c642e10c5bef
Patch-mainline: v6.1-rc7
References: git-fixes

Internal pull-down for strobe line (GRF_EMMCPHY_CON2[9]) was disabled
by commit 8b5c2b45b8f0, which causes I/O error in HS400 mode.

Tested on NanoPC-T4.

Fixes: 8b5c2b45b8f0 ("phy: rockchip: set pulldown for strobe line in dts")
Signed-off-by: Jensen Huang <jensenhuang@friendlyarm.com>
Link: https://lore.kernel.org/r/20220928091129.20597-1-jensenhuang@friendlyarm.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi
index 278123b4f911..b6e082f1f6d9 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi
@@ -167,6 +167,7 @@ &cpu_l3 {
 };
 
 &emmc_phy {
+	rockchip,enable-strobe-pulldown;
 	status = "okay";
 };
 
-- 
2.35.3