RE: [PATCH v3 8/9] dt-bindings: xlnx: Add VTC and TPG bindings

[Klymenko, Anatoliy]

Hi Krzysztof,

Thanks a lot for the review.

> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Sent: Thursday, March 21, 2024 10:59 PM
> To: Klymenko, Anatoliy <Anatoliy.Klymenko@xxxxxxx>; Laurent Pinchart
> <laurent.pinchart@xxxxxxxxxxxxxxxx>; Maarten Lankhorst
> <maarten.lankhorst@xxxxxxxxxxxxxxx>; Maxime Ripard <mripard@xxxxxxxxxx>;
> Thomas Zimmermann <tzimmermann@xxxxxxx>; David Airlie
> <airlied@xxxxxxxxx>; Daniel Vetter <daniel@xxxxxxxx>; Simek, Michal
> <michal.simek@xxxxxxx>; Andrzej Hajda <andrzej.hajda@xxxxxxxxx>; Neil
> Armstrong <neil.armstrong@xxxxxxxxxx>; Robert Foss <rfoss@xxxxxxxxxx>; Jonas
> Karlman <jonas@xxxxxxxxx>; Jernej Skrabec <jernej.skrabec@xxxxxxxxx>; Rob
> Herring <robh+dt@xxxxxxxxxx>; Krzysztof Kozlowski
> <krzysztof.kozlowski+dt@xxxxxxxxxx>; Conor Dooley <conor+dt@xxxxxxxxxx>;
> Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
> Cc: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>; dri-
> devel@xxxxxxxxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; linux-
> media@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH v3 8/9] dt-bindings: xlnx: Add VTC and TPG bindings
> 
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> 
> On 21/03/2024 21:43, Anatoliy Klymenko wrote:
> > diff --git a/include/dt-bindings/media/media-bus-format.h b/include/dt-
> bindings/media/media-bus-format.h
> > new file mode 100644
> > index 000000000000..60fc6e11dabc
> > --- /dev/null
> > +++ b/include/dt-bindings/media/media-bus-format.h
> > @@ -0,0 +1,177 @@
> > +/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
> > +/*
> > + * Media Bus API header
> > + *
> > + * Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
> > + *
> > + * This program is free software; you can redistribute it and/or modify
> > + * it under the terms of the GNU General Public License version 2 as
> > + * published by the Free Software Foundation.
> 
> That's not true. Your SPDX tells something entirely different.
> 

Thank you - I'll see how to fix it.

> Anyway, you did not explain why you need to copy anything anywhere.
> 
> Specifically, random hex values *are not bindings*.
> 

The same media bus format values are being used by the reference driver in patch #9. And, as far as I know, we cannot use headers from Linux API headers directly (at least I noticed the same pattern in ../dt-bindings/sdtv-standarts.h for instance). What would be the best approach to reusing the same defines on DT and driver sides from your point of view? Symlink maybe?

> Best regards,
> Krzysztof

Thank you,
Anatoliy