[PATCH 2/2] arm64: dts: rockchip: fix hdmi cec on rock-3a

[Jonas Karlman]

HDMI CEC is configured to select HDMITX_CEC_M0 function of GPIO0_C7 by
default in rk356x.dtsi. On Radxa ROCK 3 Model A it is routed to
HDMITX_CEC_M1 according to board schematic [1].

Fix HDMI CEC by overriding pinctrl in hdmi node to select HDMITX_CEC_M1.

[1] https://dl.radxa.com/rock3/docs/hw/3a/ROCK-3A-V1.3-SCH.pdf

Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
---
 arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
index a1c5fdf7d68f..c9cded3d2f1b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
@@ -279,6 +279,7 @@ &gpu {
 &hdmi {
 	avdd-0v9-supply = <&vdda0v9_image>;
 	avdd-1v8-supply = <&vcca1v8_image>;
+	pinctrl-0 = <&hdmitx_scl &hdmitx_sda &hdmitxm1_cec>;
 	status = "okay";
 };
 
-- 
2.39.0