linux-kernel - Re: [PATCH] dt-bindings: convert power domain node for rockchip DW MIPI DSI

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Date:   Mon, 13 Dec 2021 16:51:05 -0600
From:   Rob Herring <robh@...nel.org>
To:     Heiko Stübner <heiko@...ech.de>
Cc:     Sandy Huang <hjc@...k-chips.com>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, - <opensource@...k-chips.com>,
        David Heidelberg <david@...t.cz>,
        ~okias/devicetree@...ts.sr.ht, dri-devel@...ts.freedesktop.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: convert power domain node for rockchip DW
 MIPI DSI

On Sat, Dec 11, 2021 at 11:55:58AM +0100, Heiko Stübner wrote:
> Hi David,
> 
> Am Montag, 6. Dezember 2021, 22:26:50 CET schrieb David Heidelberg:
> > Convert into YAML format into format, which can be validated.
> > 
> > Changes:
> >  - drop panel from example
> 
> the patch subject is strange, talking about a "power domain node".
> That needs a fix.
> 
> Some more things below.
> 
> 
> > +properties:
> > +  compatible:
> > +    oneOf:
> > +      - items:
> > +          - enum:
> > +              - rockchip,px30-mipi-dsi
> > +              - rockchip,rk3288-mipi-dsi
> > +              - rockchip,rk3399-mipi-dsi
> > +          - const: snps,dw-mipi-dsi
> 
> > +      - items:
> > +          - const: rockchip,px30-mipi-dsi
> > +      - items:
> > +          - const: rockchip,rk3288-mipi-dsi
> > +      - items:
> > +          - const: rockchip,rk3399-mipi-dsi
> 
> what are these for?
> 
> I see that px30 uses the dsi without the snps part, but you
> can also just add a patch adding that second compatible to px30.dtsi

Or drop snps,dw-mipi-dsi as it doesn't seem to be all that meaningful. 
But I guess that's more invasive so maybe stick with changing px30.

> 
> I don't think we need to support both ways.

Agreed.

Rob