[PATCH v2 09/13] arm64: dts: rockchip: Add frl-enable-gpios to rk3588s-roc-pc
Cristian Ciocaltea
cristian.ciocaltea at collabora.com
Mon Apr 27 14:57:27 PDT 2026
The board exposes the GPIO4_B2 line 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.
While at it, move hym8563 down to fix the ordering of &pinctrl entries.
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea at collabora.com>
---
arch/arm64/boot/dts/rockchip/rk3588s-roc-pc.dts | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-roc-pc.dts b/arch/arm64/boot/dts/rockchip/rk3588s-roc-pc.dts
index 7e179862da6e..aa02cf510d6d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-roc-pc.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-roc-pc.dts
@@ -224,6 +224,10 @@ &gpu {
};
&hdmi0 {
+ frl-enable-gpios = <&gpio4 RK_PB2 GPIO_ACTIVE_LOW>;
+ pinctrl-0 = <&hdmim0_tx0_cec &hdmim0_tx0_hpd
+ &hdmim0_tx0_scl &hdmim0_tx0_sda &hdmi0_tx_on_h>;
+ pinctrl-names = "default";
status = "okay";
};
@@ -367,9 +371,9 @@ &pd_gpu {
};
&pinctrl {
- hym8563 {
- hym8563_int: hym8563-int {
- rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_up>;
+ hdmi {
+ hdmi0_tx_on_h: hdmi0-tx-on-h {
+ rockchip,pins = <4 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
@@ -379,6 +383,12 @@ hp_detect: hp-detect {
};
};
+ hym8563 {
+ hym8563_int: hym8563-int {
+ rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
leds {
led_pins: led-pins {
rockchip,pins = <1 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>,
--
2.53.0
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