[PATCH v2 04/16] arm64: dts: qcom: sm8550-hdk: Set up 4-lane DP

From: Neil Armstrong
Date: Fri Aug 22 2025 - 05:51:31 EST


Allow up to 4 lanes for the DisplayPort link from the PHYs to the
controllers now the mode-switch events can reach the QMP Combo PHYs.

Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sm8550-hdk.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8550-hdk.dts b/arch/arm64/boot/dts/qcom/sm8550-hdk.dts
index 9dfb248f9ab52b354453cf42c09d93bbee99214f..6c2c9514a7396a8b75ebe24585b47571c74ff568 100644
--- a/arch/arm64/boot/dts/qcom/sm8550-hdk.dts
+++ b/arch/arm64/boot/dts/qcom/sm8550-hdk.dts
@@ -1003,7 +1003,7 @@ &mdss_dp0 {
};

&mdss_dp0_out {
- data-lanes = <0 1>;
+ data-lanes = <0 1 2 3>;
};

&pcie0 {

--
2.34.1