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

[Tomi Valkeinen]

On 17/11/2022 17:14, Geert Uytterhoeven wrote:
> Hi Tomi,
>
> On Thu, Nov 17, 2022 at 1:26 PM Tomi Valkeinen
> <tomi.valkeinen@xxxxxxxxxxxxxxxx> wrote:
> > From: Tomi Valkeinen <tomi.valkeinen+renesas@xxxxxxxxxxxxxxxx>
> >
> > Extend the Renesas DSI display bindings to support the r8a779g0 V4H.
> >
> > Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@xxxxxxxxxxxxxxxx>
> > ---
> >   .../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?

Is V3U gen 4? Or do you mean "R-Car V3U and Gen 4 SoCs"?

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

At least v3u and v4h DSIs are slightly different. Well, the DSI IP block 
itself looks the same, but the PLL and PHY are different.

 Tomi