From: Abel Vesa <abel.vesa@linaro.org>
Date: Tue, 4 Mar 2025 10:57:47 +0000 (+0200)
Subject: arm64: dts: qcom: x1e80100-crd: Enable external DisplayPort support
X-Git-Tag: v6.16-rc1~97^2~20^2~115^2~94
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d9ff9537baea7433f9f6479876b8f1ef4d822bc7;p=thirdparty%2Fkernel%2Fstable.git

arm64: dts: qcom: x1e80100-crd: Enable external DisplayPort support

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.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20250304-x1e80100-dts-crd-t14s-enable-typec-retimers-v6-2-e5a49fae4e94@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---

diff --git a/arch/arm64/boot/dts/qcom/x1-crd.dtsi b/arch/arm64/boot/dts/qcom/x1-crd.dtsi
index 34e203fb7a4bf..53f329c320190 100644
--- a/arch/arm64/boot/dts/qcom/x1-crd.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1-crd.dtsi
@@ -1117,6 +1117,30 @@
 	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;