[PATCH 21/28] arm64: dts: qcom: sm8750: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies

Manivannan Sadhasivam <[email protected]> Mon, 03 Aug 2026 08:34:19 +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 these boards, feeding 1.2V to vdda-phy and 0.88V to
vdda-pll.

Fix it by swapping the two supplies back.

Fixes: 2340f29e2b06 ("arm64: dts: qcom: sm8750: Add USB support for SM8750 MTP platform")
Fixes: 530f824a4e18 ("arm64: dts: qcom: sm8750: Add USB support for SM8750 QRD platform")
Reported-by: Konrad Dybcio <[email protected]>
Assisted-by: Claude:opus-4-8
Signed-off-by: Manivannan Sadhasivam <[email protected]>
---
 arch/arm64/boot/dts/qcom/sm8750-mtp.dts | 4 ++--
 arch/arm64/boot/dts/qcom/sm8750-qrd.dts | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
index 3837f6785320..9b5fbc004df4 100644
--- a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
@@ -1404,8 +1404,8 @@ &usb {
 };
 
 &usb_dp_qmpphy {
-	vdda-phy-supply = <&vreg_l3g_1p2>;
-	vdda-pll-supply = <&vreg_l2d_0p88>;
+	vdda-phy-supply = <&vreg_l2d_0p88>;
+	vdda-pll-supply = <&vreg_l3g_1p2>;
 
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/sm8750-qrd.dts b/arch/arm64/boot/dts/qcom/sm8750-qrd.dts
index 801c46d55602..b56317cfa9fc 100644
--- a/arch/arm64/boot/dts/qcom/sm8750-qrd.dts
+++ b/arch/arm64/boot/dts/qcom/sm8750-qrd.dts
@@ -1132,8 +1132,8 @@ &usb {
 };
 
 &usb_dp_qmpphy {
-	vdda-phy-supply = <&vreg_l3g_1p2>;
-	vdda-pll-supply = <&vreg_l2d_0p88>;
+	vdda-phy-supply = <&vreg_l2d_0p88>;
+	vdda-pll-supply = <&vreg_l3g_1p2>;
 
 	status = "okay";
 };

-- 
2.43.0