arm64: dts: rockchip: add DDC bus on Rock Pi 4

A DDC I2C bus specifier is required for DDC EDID probing to work
properly.

Fixes: 1b5715c602fda ("arm64: dts: rockchip: add ROCK Pi 4 DTS support")
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
index 4a543f2117d4212b9e26578a64db9ad982ff5c59..844eac939a97c58f9aea4a2e681b39dd6648f4f1 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
@@ -158,6 +158,7 @@
 };
 
 &hdmi {
+       ddc-i2c-bus = <&i2c3>;
        pinctrl-names = "default";
        pinctrl-0 = <&hdmi_cec>;
        status = "okay";