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arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-gameforce-ace

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The board exposes the GPIO4_B3 pin to control the voltage bias on the
HDMI0 data lines.  It must be asserted when operating in HDMI 2.1 FRL
mode and deasserted for HDMI 1.4/2.0 TMDS mode.

Wire up the hdmi0 node to its dedicated GPIO via frl-enable-gpios to
allow adjusting the bias when transitioning between TMDS and FRL modes.

Additionally, drop the now unnecessary ddc-en-gpios property and the
associated pinctrl-* entries from hdmi0-con, and rename the hdmi0_en
pinmux to hdmi0_tx_on_h, in line with the naming commonly used in
RK3588s-based board schematics.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://patch.msgid.link/20260428-dts-rk-frl-enable-gpios-v2-6-924df9db884a@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Cristian Ciocaltea 2026-04-28 00:57:24 +03:00 committed by Heiko Stuebner
parent 3305c44489
commit cb3ee61e35
1 changed files with 3 additions and 5 deletions
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8
arch/arm64/boot/dts/rockchip/rk3588s-gameforce-ace.dts
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@ -302,9 +302,6 @@ amp_headphone: headphone-amplifier {
hdmi0-con {
compatible = "hdmi-connector";
ddc-en-gpios = <&gpio4 RK_PB3 GPIO_ACTIVE_HIGH>;
pinctrl-0 = <&hdmi0_en>;
pinctrl-names = "default";
type = "d";
port {
@ -514,8 +511,9 @@ &gpu {
&hdmi0 {
no-hpd;
frl-enable-gpios = <&gpio4 RK_PB3 GPIO_ACTIVE_LOW>;
pinctrl-0 = <&hdmim0_tx0_cec>, <&hdmim0_tx0_scl>,
<&hdmim0_tx0_sda>;
<&hdmim0_tx0_sda>, <&hdmi0_tx_on_h>;
pinctrl-names = "default";
status = "okay";
};
@ -893,7 +891,7 @@ charger_int_h: charger-int-h {
};
hdmi {
hdmi0_en: hdmi0-en {
hdmi0_tx_on_h: hdmi0-tx-on-h {
rockchip,pins =
<4 RK_PB3 RK_FUNC_GPIO &pcfg_pull_none>;
};