Re: [PATCH v5 6/6] arm64: dts: qcom: x1e80100-t14s: Enable external DisplayPort support

[Abel Vesa]

On 24-11-12 19:01:15, Abel Vesa wrote:
> The Lenovo ThinkPad T14s Gen6 provides external DisplayPort on all
> 2 USB Type-C ports. Each one of this ports is connected to a dedicated
> DisplayPort controller.
> 
> Due to support missing in the USB/DisplayPort combo PHY driver,
> the external DisplayPort is limited to 2 lanes.
> 
> So enable the first and second DisplayPort controllers and limit their
> data lanes number to 2.
> 
> Signed-off-by: Abel Vesa <abel.vesa@xxxxxxxxxx>

Please do not merge this specific patch.

It is provided just for context and testing purposes.

See the cover note for more details.

> ---
>  .../boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts      | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
> index ea3ecc7c5bda24f3a0a7bb027b456462b11daf4d..b08a173f0cfe2a2fc241a4e689d35b5e7e03d7e1 100644
> --- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
> +++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
> @@ -746,6 +746,22 @@ &mdss {
>  	status = "okay";
>  };
>  
> +&mdss_dp0 {
> +	status = "okay";
> +};
> +
> +&mdss_dp0_out {
> +	data-lanes = <0 1>;
> +};
> +
> +&mdss_dp1 {
> +	status = "okay";
> +};
> +
> +&mdss_dp1_out {
> +	data-lanes = <0 1>;
> +};
> +
>  &mdss_dp3 {
>  	compatible = "qcom,x1e80100-dp";
>  	/delete-property/ #sound-dai-cells;
> 
> -- 
> 2.34.1
>