Re: [PATCH 2/4] dt-bindings: display: ssd1307fb: Add entry for SINO WEALTH SH1106

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On Fri, Apr 1, 2022 at 5:32 PM Javier Martinez Canillas
<javier@xxxxxxxxxxxx> wrote:
>
> Hello Chen-Yu,
>
> Thanks a lot for your patch.
>
> On Wed, Mar 30, 2022 at 9:09 PM Chen-Yu Tsai <wens@xxxxxxxxxx> wrote:
> >
> > From: Chen-Yu Tsai <wens@xxxxxxxx>
> >
> > The SINO WEALTH SH1106 is an OLED display driver that is somewhat
> > compatible with the SSD1306. It supports a slightly wider display,
> > at 132 instead of 128 pixels. The basic commands are the same, but
> > the SH1106 doesn't support the horizontal or vertical address modes.
> >
> > Add a compatible string for it.
> >
> > Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>
> > ---
> >  Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml b/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
> > index 9baafd0c42dd..1ac016a2d847 100644
> > --- a/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
> > +++ b/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
> > @@ -13,6 +13,7 @@ maintainers:
> >  properties:
> >    compatible:
> >      enum:
> > +      - sinowealth,sh1106-i2c
>
> I like that you didn't include a "fb" suffix for this, the existing
> ones are cargo culting from the previous fbdev driver to make existing
> DTBs compatible with the DRM driver.
>
> I've been thinking if I should post a patch to compatible strings
> without the "fb" and mark the current ones as deprecated...
>
> Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>

I also thought about dropping the "-i2c" suffix, but then thought
there might be a case where someone wanted to search the device
tree specifically for an I2C connected node using said compatible
string.

What do you think?


ChenYu



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