linux-kernel - Re: [PATCH 7/8] arm64: dts: qcom: x1e80100-microsoft-romulus: Fix USB QMP PHY supplies

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Message-ID: <da7590e7-bb18-4983-9d73-fc10d42c740a@oss.qualcomm.com>
Date: Fri, 13 Dec 2024 00:49:33 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Stephan Gerhold <stephan.gerhold@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Sibi Sankar <quic_sibis@...cinc.com>, Marc Zyngier <maz@...nel.org>,
        Xilin Wu <wuxilin123@...il.com>, Abel Vesa <abel.vesa@...aro.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Aleksandrs Vinarskis <alex.vinarskis@...il.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Johan Hovold <johan@...nel.org>
Subject: Re: [PATCH 7/8] arm64: dts: qcom: x1e80100-microsoft-romulus: Fix USB
 QMP PHY supplies

On 10.12.2024 10:07 AM, Stephan Gerhold wrote:
> On the X1E80100 CRD, &vreg_l3e_1p2 only powers &usb_mp_qmpphy0/1
> (i.e. USBSS_3 and USBSS_4). The QMP PHYs for USB_0, USB_1 and USB_2
> are actually powered by &vreg_l2j_1p2.
> 
> Since x1e80100-microsoft-romulus mostly just mirrors the power supplies
> from the x1e80100-crd device tree, assume that the fix also applies here.
> 
> Cc: stable@...r.kernel.org
> Fixes: 09d77be56093 ("arm64: dts: qcom: Add support for X1-based Surface Laptop 7 devices")
> Signed-off-by: Stephan Gerhold <stephan.gerhold@...aro.org>
> ---

I'm just going to assume these are true.. Can't really cut power to
these to test as they drive many more things

Konrad