linux-kernel - [PATCH 1/3] dt-bindings: phy: qcom: qmp-combo: add support for vdda-aux regulator

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Message-Id: <20251110115806.2379442-2-quic_amitsi@quicinc.com>
Date: Mon, 10 Nov 2025 17:28:04 +0530
From: Amit Singh <quic_amitsi@...cinc.com>
To: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, vkoul@...nel.org,
        kishon@...nel.org, lumag@...nel.org, neil.armstrong@...aro.org,
        quic_wcheng@...cinc.com
Cc: Amit Singh <quic_amitsi@...cinc.com>, linux-arm-msm@...r.kernel.org,
        linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, quic_riteshk@...cinc.com,
        quic_rajeevny@...cinc.com, quic_vproddut@...cinc.com
Subject: [PATCH 1/3] dt-bindings: phy: qcom: qmp-combo: add support for vdda-aux regulator

Add support for the "vdda-aux" regulator in the QMP PHY binding, with
an enable_load of 36000 µA. Managing this auxiliary rail in the driver
allows proper power configuration on platforms that provide the supply,
improving PHY stability.

This change is a no-op on platforms that do not define the "vdda-aux"
regulator.

Signed-off-by: Amit Singh <quic_amitsi@...cinc.com>
---
 .../devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml  | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
index c8bc512df08b..9a9051735314 100644
--- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
@@ -59,6 +59,8 @@ properties:
       - const: phy
       - const: common
 
+  vdda-aux-supply: true
+
   vdda-phy-supply: true
 
   vdda-pll-supply: true
-- 
2.34.1