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

From: Varadarajan Narayanan
Date: Wed Feb 05 2025 - 02:48:35 EST


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@xxxxxxxxxxxxxxx
Fixes: ec4f047679d5 ("arm64: dts: qcom: ipq9574: Enable USB")
Signed-off-by: Varadarajan Narayanan <quic_varada@xxxxxxxxxxx>
---
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