linux-kernel - [PATCH v1 2/2] arm64: dts: qcom: ipq9574: Fix USB vdd info

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Message-ID: <20250205074657.4142365-3-quic_varada@quicinc.com>
Date: Wed, 5 Feb 2025 13:16:57 +0530
From: Varadarajan Narayanan <quic_varada@...cinc.com>
To: <lgirdwood@...il.com>, <broonie@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <andersson@...nel.org>,
        <konradybcio@...nel.org>, <agross@...nel.org>,
        <quic_varada@...cinc.com>, <dmitry.baryshkov@...aro.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
CC: <stable@...r.kernel.org>
Subject: [PATCH v1 2/2] arm64: dts: qcom: ipq9574: Fix USB vdd info

USB phys in ipq9574 use the 'L5' regulator. The commit
ec4f047679d5 ("arm64: dts: qcom: ipq9574: Enable USB")
incorrectly specified it as 'L2'. Because of this when the phy
module turns off/on its regulators, 'L2' is turned off/on
resulting in 2 issues, namely 'L5' is not turned off/on and the
network module powered by the 'L2' is turned off/on.

Cc: stable@...r.kernel.org
Fixes: ec4f047679d5 ("arm64: dts: qcom: ipq9574: Enable USB")
Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
---
 arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi b/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi
index ae12f069f26f..b24b795873d4 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi
@@ -111,6 +111,13 @@ mp5496_l2: l2 {
 			regulator-always-on;
 			regulator-boot-on;
 		};
+
+		mp5496_l5: l5 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-always-on;
+			regulator-boot-on;
+		};
 	};
 };
 
@@ -146,7 +153,7 @@ &usb_0_dwc3 {
 };
 
 &usb_0_qmpphy {
-	vdda-pll-supply = <&mp5496_l2>;
+	vdda-pll-supply = <&mp5496_l5>;
 	vdda-phy-supply = <&regulator_fixed_0p925>;
 
 	status = "okay";
@@ -154,7 +161,7 @@ &usb_0_qmpphy {
 
 &usb_0_qusbphy {
 	vdd-supply = <&regulator_fixed_0p925>;
-	vdda-pll-supply = <&mp5496_l2>;
+	vdda-pll-supply = <&mp5496_l5>;
 	vdda-phy-dpdm-supply = <&regulator_fixed_3p3>;
 
 	status = "okay";
-- 
2.34.1