| Message ID | 20250226231436.16138-2-alex.vinarskis@gmail.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 01a3d5e3cdc833292bdc80a4320235551083982f |
| Headers | show |
| Series | X1E Dell XPS 9345 External DisplayPort, HBR3 fixes | expand |
On 27.02.2025 12:12 AM, Aleksandrs Vinarskis wrote: > Particular laptops comes with two USB Type-C ports, both supporting DP > alt mode. Enable output on both of them. Explicitly list supported > frequencies including HBR3/8.1Gbps for all external DisplayPort(s). > > Due to support missing in the USB/DisplayPort combo PHY driver, > the external DisplayPort is limited to 2 lanes. > > Derived from: > arm64: dts: qcom: x1e80100-t14s: Add external DP support > > Signed-off-by: Aleksandrs Vinarskis <alex.vinarskis@gmail.com> > --- Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Konrad
diff --git a/arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts b/arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts index 86e87f03b0ec..124051334be0 100644 --- a/arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts +++ b/arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts @@ -770,6 +770,24 @@ &mdss { status = "okay"; }; +&mdss_dp0 { + status = "okay"; +}; + +&mdss_dp0_out { + data-lanes = <0 1>; + link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>; +}; + +&mdss_dp1 { + status = "okay"; +}; + +&mdss_dp1_out { + data-lanes = <0 1>; + link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>; +}; + &mdss_dp3 { /delete-property/ #sound-dai-cells;
Particular laptops comes with two USB Type-C ports, both supporting DP alt mode. Enable output on both of them. Explicitly list supported frequencies including HBR3/8.1Gbps for all external DisplayPort(s). Due to support missing in the USB/DisplayPort combo PHY driver, the external DisplayPort is limited to 2 lanes. Derived from: arm64: dts: qcom: x1e80100-t14s: Add external DP support Signed-off-by: Aleksandrs Vinarskis <alex.vinarskis@gmail.com> --- .../boot/dts/qcom/x1e80100-dell-xps13-9345.dts | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)