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
>
