Re: [PATCH 1/4] dt-bindings: spi: sun6i: add DT bindings for Allwinner R329 SPI

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在 2022-04-22星期五的 18:49 -0500,Samuel Holland写道:
> On 4/22/22 10:56 AM, icenowy@xxxxxxxxxxx wrote:
> > From: Icenowy Zheng <icenowy@xxxxxxx>
> > 
> > Allwinner R329 SPI has two controllers, and the second one has
> > helper
> > functions for MIPI-DBI Type C.
> > 
> > Add compatible strings for these controllers
> > 
> > Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx>
> > ---
> >  .../devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml        |
> > 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/spi/allwinner,sun6i-
> > a31-spi.yaml
> > b/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-
> > spi.yaml
> > index ca4c95345a49..6354635241fc 100644
> > --- a/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-
> > spi.yaml
> > +++ b/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-
> > spi.yaml
> > @@ -21,6 +21,8 @@ properties:
> >      oneOf:
> >        - const: allwinner,sun6i-a31-spi
> >        - const: allwinner,sun8i-h3-spi
> > +      - const: allwinner,sun50i-r329-spi
> > +      - const: allwinner,sun50i-r329-spi-dbi
> 
> As far as I'm aware, the SPI portion of the DBI controller is
> register-compatible with the regular SPI controller. So I would
> expect using
> that as a fallback compatible for the DBI variant.

This sounds reasonable.

> 
> Regards,
> Samuel
> 
> >        - items:
> >            - enum:
> >                - allwinner,sun8i-r40-spi
> > 
> 





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