Hi Laurent,
On Fri, Mar 31, 2017 at 11:19 AM, Laurent Pinchart
<laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
> On Monday 27 Mar 2017 13:05:48 Geert Uytterhoeven wrote:
>> On Mon, Mar 27, 2017 at 11:56 AM, Laurent Pinchart wrote:
>> > The property is used by the driver but is missing from the DT bindings.
>> > Document it.
>> >
>> > Reported-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
>> > Signed-off-by: Laurent Pinchart
>> > <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
>> > ---
>> > Documentation/devicetree/bindings/display/renesas,du.txt | 5 +++++
>> > 1 file changed, 5 insertions(+)
>> >
>> > diff --git a/Documentation/devicetree/bindings/display/renesas,du.txt
>> > b/Documentation/devicetree/bindings/display/renesas,du.txt index
>> > 1a02f099a0ff..cf34893a1b53 100644
>> > --- a/Documentation/devicetree/bindings/display/renesas,du.txt
>> > +++ b/Documentation/devicetree/bindings/display/renesas,du.txt
>> >
>> > @@ -36,6 +36,11 @@ Required Properties:
>> > When supplied they must be named "dclkin.x" with "x" being the
>> > input
>> > clock numerical index.
>> >
>> > +Optional Properties:
>> > +
>> > + - vsps: A list of phandles to the VSP nodes that handle the memory
>> > + interfaces for the DU channels (Gen3 only).
>>
>> ", one per channel"?
>>
>> Required for Gen3, optional for Gen2? (cfr. Sergei's patches).
>
> How about making it mandatory on Gen2 as well ? The VSPs are there, even if
> the driver doesn't use them, it makes sense to describe the connection. Of
Fine for me, as this is hardware description.
> course the driver will treat the property as optional for backward
> compatibility.
OK.
Disclaimer: I didn't follow the discussion about using or not using the vsps
on Gen2 that closely, and don't remember the outcome.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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