[PATCH 02/28] arm64: dts: qcom: sc8280xp-blackrock: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies

Manivannan Sadhasivam <[email protected]> Mon, 03 Aug 2026 08:34:00 +0200
Newsgroups org.kernel.feeds.b4-sent,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
The QMP PHY expects the vdda-phy supply to be around 0.88V and the
vdda-pll supply to be 1.2V. But these two supplies are swapped for the
USB QMP PHYs on this board, feeding 1.2V to vdda-phy and 0.9V to
vdda-pll.

Fix it by swapping the two supplies back.

Fixes: 16a7fed11714 ("arm64: dts: qcom: sc8280xp-blackrock: dt definition for WDK2023")
Reported-by: Konrad Dybcio <[email protected]>
Assisted-by: Claude:opus-4-8
Signed-off-by: Manivannan Sadhasivam <[email protected]>
---
 arch/arm64/boot/dts/qcom/sc8280xp-microsoft-blackrock.dts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-blackrock.dts b/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-blackrock.dts
index 125af356e24b..4e74eda7405f 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-blackrock.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-blackrock.dts
@@ -1003,8 +1003,8 @@ &usb_0_hsphy {
 };
 
 &usb_0_qmpphy {
-	vdda-phy-supply = <&vreg_l4d>;
-	vdda-pll-supply = <&vreg_l9d>;
+	vdda-phy-supply = <&vreg_l9d>;
+	vdda-pll-supply = <&vreg_l4d>;
 
 	orientation-switch;
 
@@ -1040,8 +1040,8 @@ &usb_1_hsphy {
 };
 
 &usb_1_qmpphy {
-	vdda-phy-supply = <&vreg_l3b>;
-	vdda-pll-supply = <&vreg_l4b>;
+	vdda-phy-supply = <&vreg_l4b>;
+	vdda-pll-supply = <&vreg_l3b>;
 
 	orientation-switch;
 

-- 
2.43.0