linux-kernel - [PATCH 0/3] add vdda-aux regulator support for QMP PHY on QCS6490

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Message-Id: <20251110115806.2379442-1-quic_amitsi@quicinc.com>
Date: Mon, 10 Nov 2025 17:28:03 +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 0/3] add vdda-aux regulator support for QMP PHY on QCS6490

The `vdda-aux` supply is necessary for proper power sequencing and reliable
USB enumeration on platforms that provide this rail.

This series adds support for the `vdda-aux` regulator to the QMP PHY driver
and updates the QCS6490 RB3 Gen2 device tree to provide the required
auxiliary 3.0 V rail for stable USB PHY operation.
Platforms that do not define `vdda-aux` remain unaffected.

Tested on RB3 Gen2 (QCS6490) platform to ensure proper USB enumeration and
PHY stability.

Amit Singh (3):
  dt-bindings: phy: qcom: qmp-combo: add support for vdda-aux regulator
  phy: qcom: qmp-combo: add vdda-aux regulator
  arm64: dts: qcom: qcs6490-rb3gen2: add vdda-aux supply for USB QMP PHY

 .../devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml  | 2 ++
 arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts                    | 1 +
 drivers/phy/qualcomm/phy-qcom-qmp-combo.c                       | 1 +
 3 files changed, 4 insertions(+)

-- 
2.34.1