From 01a3d5e3cdc833292bdc80a4320235551083982f Mon Sep 17 00:00:00 2001 From: Aleksandrs Vinarskis Date: Thu, 27 Feb 2025 00:12:09 +0100 Subject: [PATCH] arm64: dts: qcom: x1e80100-dell-xps13-9345: Enable external DP support 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 Reviewed-by: Konrad Dybcio Link: https://lore.kernel.org/r/20250226231436.16138-2-alex.vinarskis@gmail.com Signed-off-by: Bjorn Andersson --- .../boot/dts/qcom/x1e80100-dell-xps13-9345.dts | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) 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 86e87f03b0ec6..124051334be07 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 @@ 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; -- 2.47.2