linux-kernel - Re: [PATCH 2/9] dt-bindings: phy: qcom,m31: Document qcom,m31 USB phy

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Date:   Wed, 21 Jun 2023 10:43:38 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Varadarajan Narayanan <quic_varada@...cinc.com>
Cc:     agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        vkoul@...nel.org, kishon@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        gregkh@...uxfoundation.org, catalin.marinas@....com,
        will@...nel.org, mturquette@...libre.com, sboyd@...nel.org,
        p.zabel@...gutronix.de, arnd@...db.de, geert+renesas@...der.be,
        neil.armstrong@...aro.org, nfraprado@...labora.com,
        broonie@...nel.org, rafal@...ecki.pl, quic_srichara@...cinc.com,
        quic_varada@...cinc.org, quic_wcheng@...cinc.com,
        linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-clk@...r.kernel.org
Subject: Re: [PATCH 2/9] dt-bindings: phy: qcom,m31: Document qcom,m31 USB phy

On 20/06/2023 11:32, Varadarajan Narayanan wrote:

> 
>> And then we have... existing bindings qcom,usb-hs-phy.yaml. Don't create
>> something similar with difference in the hyphen. Just use device
>> specific compatible thus device specific filename.
> 
> qcom,usb-hs-phy.yaml seems to be for ULPI mode phy and the
> driver we are introducing is for UTMI. We would have to
> modify phy-qcom-usb-hs.c to accomodate M31. Will that be
> acceptable to phy-qcom-usb-hs.c owners/maintainers?

We don't talk about drivers here but bindings. Why would you need to
modify the driver when introducing new binding for different device?



Best regards,
Krzysztof