[PATCH v2 1/7] dt-bindings: display: renesas,du: Document r9a07g044l bindings

Biju Das biju.das.jz at bp.renesas.com
Tue Apr 12 10:40:24 UTC 2022


Hi Geert,

Thanks for the feedback

> Subject: Re: [PATCH v2 1/7] dt-bindings: display: renesas,du: Document
> r9a07g044l bindings
> 
> Hi Biju,
> 
> On Wed, Mar 16, 2022 at 2:11 PM Biju Das <biju.das.jz at bp.renesas.com>
> wrote:
> > Extend the Renesas DU display bindings to support the r9a07g044l DU
> > module found on RZ/G2L LCDC.
> >
> > Signed-off-by: Biju Das <biju.das.jz at bp.renesas.com>
> 
> Thanks for your patch!
> 
> > --- a/Documentation/devicetree/bindings/display/renesas,du.yaml
> > +++ b/Documentation/devicetree/bindings/display/renesas,du.yaml
> > @@ -40,6 +40,7 @@ properties:
> >        - renesas,du-r8a77990 # for R-Car E3 compatible DU
> >        - renesas,du-r8a77995 # for R-Car D3 compatible DU
> >        - renesas,du-r8a779a0 # for R-Car V3U compatible DU
> > +      - renesas,du-r9a07g044l # for RZ/G2L compatible DU
> 
> "renesas,du-r9a07g044"? Both RZ/G2L and RZ/G2LC have an LCDC.
> I believe the lack of parallel data support on RZ/G2LC is just a
> limitation of the package?

From the block diagram 24-bit video data from DU is connected to both DSI and parallel interface.
However, SoC packaging wise RZ/G2LC supports only DSI interface.

RZ/G2L supports both DSI and parallel interface
RZ/G2LC supports only DSI interface

OK, we could use "renesas,du-r9a07g044" as well. 

Regards,
Biju


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