The X Elite CRD provides external DisplayPort on all 3 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 all 3 remaining DisplayPort controllers and limit their data
lanes number to 2.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
 arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
index 1b29082788a366c63474b74e7dc916176a57546d..9f9b1197963e2a278f66d5dde563930ebcc3d9d9 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
@@ -1125,6 +1125,30 @@ &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_dp2 {
+	status = "okay";
+};
+
+&mdss_dp2_out {
+	data-lanes = <0 1>;
+};
+
 &mdss_dp3 {
 	compatible = "qcom,x1e80100-dp";
 	/delete-property/ #sound-dai-cells;

-- 
2.34.1

On 20.02.2025 6:42 PM, Abel Vesa wrote:
> The X Elite CRD provides external DisplayPort on all 3 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 all 3 remaining DisplayPort controllers and limit their data
> lanes number to 2.
> 
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad