linux-kernel - Re: [PATCH v1 2/8] dt-bindings: display: bridge: renesas,dsi-csi2-tx: Add r8a779g0

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Date:   Tue, 22 Nov 2022 04:45:29 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Magnus Damm <magnus.damm@...il.com>,
        dri-devel@...ts.freedesktop.org, linux-renesas-soc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Robert Foss <robert.foss@...aro.org>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
Subject: Re: [PATCH v1 2/8] dt-bindings: display: bridge:
 renesas,dsi-csi2-tx: Add r8a779g0

On Thu, Nov 17, 2022 at 04:14:21PM +0100, Geert Uytterhoeven wrote:
> On Thu, Nov 17, 2022 at 1:26 PM Tomi Valkeinen wrote:
> > From: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
> >
> > Extend the Renesas DSI display bindings to support the r8a779g0 V4H.
> >
> > Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
> > ---
> >  .../bindings/display/bridge/renesas,dsi-csi2-tx.yaml           | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,dsi-csi2-tx.yaml b/Documentation/devicetree/bindings/display/bridge/renesas,dsi-csi2-tx.yaml
> > index afeeb967393d..bc3101f77e5a 100644
> > --- a/Documentation/devicetree/bindings/display/bridge/renesas,dsi-csi2-tx.yaml
> > +++ b/Documentation/devicetree/bindings/display/bridge/renesas,dsi-csi2-tx.yaml
> > @@ -11,13 +11,14 @@ maintainers:
> >
> >  description: |
> >    This binding describes the MIPI DSI/CSI-2 encoder embedded in the Renesas
> > -  R-Car V3U SoC. The encoder can operate in either DSI or CSI-2 mode, with up
> > +  R-Car V3U/V4H SoC. The encoder can operate in either DSI or CSI-2 mode, with up
> 
> Perhaps "R-Car Gen4 SoCs", so we stay within 80 chars, and don't have
> to update this when the next member of the family is around the block?

Sounds good.

> Is there anything that might be SoC-specific?
> If not, perhaps the time is ripe for a family-specific compatible value?

That's hard to tell, I have little visibility into what surprises other
SoCs will bring :-S

> >    to four data lanes.
> >
> >  properties:
> >    compatible:
> >      enum:
> >        - renesas,r8a779a0-dsi-csi2-tx    # for V3U
> > +      - renesas,r8a779g0-dsi-csi2-tx    # for V4H

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> >
> >    reg:
> >      maxItems: 1

-- 
Regards,

Laurent Pinchart