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arm64: dts: rockchip: Add frl-enable-gpios to rk3576 boards

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The following RK3576 boards expose a GPIO pin to control the voltage
bias on the HDMI data lines:

- rk3576-100ask-dshanpi-a1
- rk3576-armsom-sige5
- rk3576-evb1-v10
- rk3576-evb2-v10
- rk3576-nanopi-m5
- rk3576-roc-pc
- rk3576-rock-4d

The pin must be asserted when operating in HDMI 2.1 FRL mode and
deasserted for HDMI 1.4/2.0 TMDS mode.

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

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://patch.msgid.link/20260428-dts-rk-frl-enable-gpios-v2-1-924df9db884a@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Cristian Ciocaltea 2026-04-28 00:57:19 +03:00 committed by Heiko Stuebner
parent 76cf96cd9e
commit 2cd97880fb
7 changed files with 63 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
arch/arm64/boot/dts/rockchip/rk3576-100ask-dshanpi-a1.dts
View File

@ -278,6 +278,9 @@ &gpu {
};
&hdmi {
frl-enable-gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>;
pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>;
pinctrl-names = "default";
status = "okay";
};
@ -738,6 +741,12 @@ hp_det: hp-det {
};
};
hdmi {
hdmi_tx_on_h: hdmi-tx-on-h {
rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
pcie {
pcie_reset: pcie-reset {
rockchip,pins = <1 RK_PB7 RK_FUNC_GPIO &pcfg_pull_none>;

9
arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts
View File

@ -304,6 +304,9 @@ &gpu {
};
&hdmi {
frl-enable-gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>;
pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>;
pinctrl-names = "default";
status = "okay";
};
@ -819,6 +822,12 @@ hp_det_l: hp-det-l {
};
};
hdmi {
hdmi_tx_on_h: hdmi-tx-on-h {
rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
hym8563 {
hym8563_int: hym8563-int {
rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;

9
arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts
View File

@ -370,6 +370,9 @@ &gpu {
};
&hdmi {
frl-enable-gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>;
pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>;
pinctrl-names = "default";
status = "okay";
};
@ -895,6 +898,12 @@ host_wake_bt: host-wake-bt {
};
};
hdmi {
hdmi_tx_on_h: hdmi-tx-on-h {
rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
hym8563 {
rtc_int: rtc-int {
rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;

9
arch/arm64/boot/dts/rockchip/rk3576-evb2-v10.dts
View File

@ -375,6 +375,9 @@ &gpu {
};
&hdmi {
frl-enable-gpios = <&gpio4 RK_PC6 GPIO_ACTIVE_LOW>;
pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>;
pinctrl-names = "default";
status = "okay";
};
@ -832,6 +835,12 @@ image_pwren: image-pwren {
};
};
hdmi {
hdmi_tx_on_h: hdmi-tx-on-h {
rockchip,pins = <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
hym8563 {
rtc_int: rtc-int {
rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;

9
arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts
View File

@ -327,6 +327,9 @@ &gpu {
};
&hdmi {
frl-enable-gpios = <&gpio4 RK_PC6 GPIO_ACTIVE_LOW>;
pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>;
pinctrl-names = "default";
status = "okay";
};
@ -813,6 +816,12 @@ gmac1_rst: gmac1-rst {
};
};
hdmi {
hdmi_tx_on_h: hdmi-tx-on-h {
rockchip,pins = <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
hym8563 {
hym8563_int: hym8563-int {
rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;

9
arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts
View File

@ -283,6 +283,9 @@ &eth0m0_rgmii_bus
};
&hdmi {
frl-enable-gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>;
pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>;
pinctrl-names = "default";
status = "okay";
};
@ -720,6 +723,12 @@ &sdmmc {
};
&pinctrl {
hdmi {
hdmi_tx_on_h: hdmi-tx-on-h {
rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
hym8563 {
rtc_int_l: rtc-int-l {
rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;

9
arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts
View File

@ -289,6 +289,9 @@ &gpu {
};
&hdmi {
frl-enable-gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>;
pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>;
pinctrl-names = "default";
status = "okay";
};
@ -720,6 +723,12 @@ &pcie0 {
};
&pinctrl {
hdmi {
hdmi_tx_on_h: hdmi-tx-on-h {
rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
hym8563 {
hym8563_int: hym8563-int {
rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;