linux-kernel - [PATCH] arm64: dts: qcom: sc8280xp-x13s: Use the correct DP PHY compatible

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Date:   Fri, 29 Sep 2023 18:02:57 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Johan Hovold <johan+linaro@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH] arm64: dts: qcom: sc8280xp-x13s: Use the correct DP PHY
 compatible

The DP PHY needs different settings when an eDP display is used.
Make sure these apply on the X13s.

FWIW
I could not notice any user-facing change stemming from this commit.

Fixes: f48c70b111b4 ("arm64: dts: qcom: sc8280xp-x13s: enable eDP display")
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
I have no idea whether DP3 is hardwired to be eDP, like it
seems to be on the last DP controller of SC7280. In that
case this would be moved to the SoC DTSI.
---
 arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
index 38edaf51aa34..6a4c6cc19c09 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
@@ -601,6 +601,7 @@ mdss0_dp3_out: endpoint {
 };
 
 &mdss0_dp3_phy {
+	compatible = "qcom,sc8280xp-edp-phy";
 	vdda-phy-supply = <&vreg_l6b>;
 	vdda-pll-supply = <&vreg_l3b>;
 

---
base-commit: df964ce9ef9fea10cf131bf6bad8658fde7956f6
change-id: 20230929-topic-x13s_edpphy-0e172498c432

Best regards,
-- 
Konrad Dybcio <konrad.dybcio@...aro.org>