On Wed, Apr 02, 2025 at 10:58:32AM +0100, Christopher Obbard wrote:
> The eDP controller has an HPD GPIO. Describe it in the device tree
> for the generic T14s model, as the HPD GPIO is used in both the
> OLED and LCD models which inherit this device tree.
>
> Signed-off-by: Christopher Obbard <christopher.obb...@linaro.org>
> ---
> arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
> b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
> index
> 962fb050c55c4fd33f480a21a8c47a484d0c82b8..b0dbe4eaa77e5a6f862fd0db2a3c91db2aab5030
> 100644
> --- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
> +++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
> @@ -975,6 +975,9 @@ &mdss_dp3 {
> compatible = "qcom,x1e80100-dp";
> /delete-property/ #sound-dai-cells;
>
> + pinctrl-names = "default";
> + pinctrl-0 = <&edp_hpd_active>;
> +
> status = "okay";
>
> aux-bus {
> @@ -1215,6 +1218,11 @@ &tlmm {
> <72 2>, /* Secure EC I2C connection (?) */
> <238 1>; /* UFS Reset */
>
> + edp_hpd_active: edp-hpd-active-state {
> + pins = "gpio119";
> + function = "edp_hot";
> + };
This looks generic enough and can go into the SoC dtsi.
> +
> eusb3_reset_n: eusb3-reset-n-state {
> pins = "gpio6";
> function = "gpio";
>
> --
> 2.49.0
>
--
With best wishes
Dmitry
