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arm64: dts: qcom: x1e80100-dell-xps13-9345: Enable external DP support

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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>
Link: https://lore.kernel.org/r/20250226231436.16138-2-alex.vinarskis@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Aleksandrs Vinarskis 2025-02-27 00:12:09 +01:00 committed by Bjorn Andersson
parent 4de3e8d657
commit 01a3d5e3cd
1 changed files with 18 additions and 0 deletions
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18
arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts
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@ -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;