linux-kernel - Re: [PATCH 02/13] arm64: dts: qcom: Move sc7180 MI2S config to board files and make pulldown

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Date:   Thu, 25 Feb 2021 14:57:44 -0800
From:   Doug Anderson <dianders@...omium.org>
To:     Konrad Dybcio <konrad.dybcio@...ainline.org>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Alexandru M Stan <amstan@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Rob Clark <robdclark@...omium.org>,
        V Sujith Kumar Reddy <vsujithk@...eaurora.org>,
        Srinivasa Rao Mandadapu <srivasam@...eaurora.org>,
        Tzung-Bi Shih <tzungbi@...omium.org>,
        Judy Hsiao <judyhsiao@...omium.org>,
        Andy Gross <agross@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 02/13] arm64: dts: qcom: Move sc7180 MI2S config to board
 files and make pulldown

Hi,

On Thu, Feb 25, 2021 at 2:55 PM Konrad Dybcio
<konrad.dybcio@...ainline.org> wrote:
>
> Hi,
>
>
> >
> > +&pri_mi2s_active {
> > +     pinconf {
> > +             pins = "gpio53", "gpio54", "gpio55", "gpio56";
> > +             drive-strength = <2>;
> > +             bias-pull-down;
> > +     };
> > +};
> > +
>
> You can omit pinconf{}, so the outcome would be:
> &pri_mi2s_active {
>
>     pins = ...
>
>     ...
>
> };
>
>
> This makes the DTs ever so shorter and is the style that's currently used for new submissions.
>
> Same goes for the nodes that are being referenced.

Yes, I agree.  That definitely makes sense going forward, but I think
it'll just add to the confusion to switch a dts for a given SoC
mid-stride.  ...or, if we do switch the style it should be done in a
separate (no-op) patch series.  This series is already giant enough...

-Doug