linux-kernel - Re: [PATCH] arm64: dts: sdm845: Add videocc node

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Message-ID: <CAD=FV=XoriDM2Dmj0bYwbqZ+ej6Ybf_XX5DOTSW1_X3eGRkohQ@mail.gmail.com>
Date:   Tue, 27 Nov 2018 11:26:30 -0800
From:   Doug Anderson <dianders@...omium.org>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     Andy Gross <andy.gross@...aro.org>,
        Taniya Das <tdas@...eaurora.org>,
        Michael Turquette <mturquette@...libre.com>,
        David Brown <david.brown@...aro.org>,
        Rajendra Nayak <rnayak@...eaurora.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        "open list:ARM/QUALCOMM SUPPORT" <linux-soc@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>, devicetree@...r.kernel.org,
        Rob Herring <robh@...nel.org>
Subject: Re: [PATCH] arm64: dts: sdm845: Add videocc node

Hi,

On Mon, Nov 26, 2018 at 10:57 PM Stephen Boyd <sboyd@...nel.org> wrote:
>
> > > +               videocc: clock-controller@...0000 {
> > > +                       compatible = "qcom,sdm845-videocc";
> > > +                       reg = <0xab00000 0x10000>;
> > > +                       #clock-cells = <1>;
> > > +                       #power-domain-cells = <1>;
> >
> > Any reason not to include "#reset-cells = <1>;" here?  The bindings
> > list it as optional but I see no reason why we should leave it off.
> > The file "include/dt-bindings/clock/qcom,videocc-sdm845.h" seems to
> > include some #defines for resets.  Even though the driver doesn't seem
> > like it supports it yet, it still should be fine to list it here.
>
> We should update the binding to make it a required property. It doesn't
> make any sense why that property would be optional given that the
> hardware either has support for resets or it doesn't.

Patch sent for the bindings change.

https://lkml.kernel.org/r/20181127192443.136158-1-dianders@chromium.org