linux-kernel - Re: [PATCH v2 0/3] Add missing vdd-supply for QUSB2 PHY

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Message-ID: <YVbD12kTfbGmRYId@matsya>
Date:   Fri, 1 Oct 2021 13:46:23 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Shawn Guo <shawn.guo@...aro.org>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Jeffrey Hugo <jeffrey.l.hugo@...il.com>,
        Jami Kettunen <jamipkettunen@...il.com>,
        linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/3] Add missing vdd-supply for QUSB2 PHY

Hi Shawn,

On 28-09-21, 10:19, Shawn Guo wrote:
> The series adds missing vdd-supply for QUSB2 PHY which is required for
> digital circuit.  The driver works right now likely because firmware
> already sets it up.  Add it to bindings, driver and DTS that miss the
> supply.
> 
> It should not cause problem for existing DTBs:
> - SC7180, SDM630, SDM845 based platforms already specified vdd-supply
>   in the DTBs.
> - MSM8996 and MSM8998 platform DTBs miss vdd-supply, but dummy regulator
>   will ensure QUSB2 PHY driver works as before on these platforms.

What about the rest.. I checked SM8350 and SM8250 mtp ones are missing
this. With the property made mandatory, I guess it would cause these to
fail right..

> 
> Changes for v2:
> - Correct copy & paste error on vdd-supply name in bindings doc.
> 
> 
> Shawn Guo (3):
>   dt-bindings: phy: qcom,qusb2: Add missing vdd-supply
>   phy: qcom-qusb2: Add missing vdd supply
>   arm64: dts: qcom: Add missing vdd-supply for QUSB2 PHY
> 
>  Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml | 6 ++++++
>  arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi              | 2 ++
>  arch/arm64/boot/dts/qcom/msm8996-sony-xperia-tone.dtsi    | 1 +
>  arch/arm64/boot/dts/qcom/msm8998-clamshell.dtsi           | 1 +
>  arch/arm64/boot/dts/qcom/msm8998-oneplus-common.dtsi      | 1 +
>  drivers/phy/qualcomm/phy-qcom-qusb2.c                     | 2 +-
>  6 files changed, 12 insertions(+), 1 deletion(-)
> 
> -- 
> 2.17.1

-- 
~Vinod