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arm64: dts: rockchip: fix hdmi cec on rock-3a

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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@kwiboo.se>
Link: https://lore.kernel.org/r/20230110225547.1563119-3-jonas@kwiboo.se
[added pinctrl-names duplicate]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Jonas Karlman
2023-01-10 22:55:59 +00:00
committed by Heiko Stuebner
parent 64b69474ed
commit 906e822c0c
1 changed files with 2 additions and 0 deletions
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2
arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
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@@ -279,6 +279,8 @@ &gpu {
&hdmi {
avdd-0v9-supply = <&vdda0v9_image>;
avdd-1v8-supply = <&vcca1v8_image>;
pinctrl-names = "default";
pinctrl-0 = <&hdmitx_scl &hdmitx_sda &hdmitxm1_cec>;
status = "okay";
};