| Message ID | 20241112-x1e80100-ps8830-v5-6-4ad83af4d162@linaro.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | usb: typec: Add new driver for Parade PS8830 Type-C Retimer | expand |
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@linaro.org> 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 >
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;
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@linaro.org> --- .../boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)