linux-kernel - Re: [PATCH v2 13/15] dt-bindings: sun6i-dsi: Add compatible for A64 DPHY

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Message-ID: <CAMty3ZC3jXKBVrrCSd0Un+ZNvNKPj4C0WpcpNOYJBK1=vehBQg@mail.gmail.com>
Date:   Thu, 25 Oct 2018 18:22:51 +0530
From:   Jagan Teki <jagan@...rulasolutions.com>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Chen-Yu Tsai <wens@...e.org>, Icenowy Zheng <icenowy@...c.io>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        David Airlie <airlied@...ux.ie>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        Michael Trimarchi <michael@...rulasolutions.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-sunxi@...glegroups.com
Subject: Re: [PATCH v2 13/15] dt-bindings: sun6i-dsi: Add compatible for A64 DPHY

On Wed, Oct 24, 2018 at 11:39 PM Maxime Ripard
<maxime.ripard@...tlin.com> wrote:
>
> On Tue, Oct 23, 2018 at 09:20:33PM +0530, Jagan Teki wrote:
> > The MIPI DSI PHY HDMI controller on Allwinner A64 is similar
> > on the one on A31.
> >
> > Add A64 compatible and append A31 compatible as fallback.
> >
> > Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
> > ---
> > Changes for v2:
> > - new patch
> >
> >  Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt b/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt
> > index 9fa6e7a758ad..704fb31962f2 100644
> > --- a/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt
> > +++ b/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt
> > @@ -36,7 +36,7 @@ D-PHY
> >
> >  Required properties:
> >    - compatible: value must be one of:
> > -    * allwinner,sun6i-a31-mipi-dphy
> > +    * "allwinner,sun50i-a64-mipi-dphy", "allwinner,sun6i-a31-mipi-dphy"
>
> No. you need both. The A64 MIPI DPHY one needs to be always set with
> the A31 fallback, but the A31 is also usable on its own.

Why wouldn't be, because we don't have any difference dphy right?