[PATCH 2/2] dt-bindings: display: Add obsolete note to "ti,tilcdc,panel" binding

[Laurent Pinchart]

Hi Jyri,

Thank you for the patch.

On Wed, Dec 04, 2019 at 07:53:11PM +0200, Jyri Sarha wrote:
> The "ti,tilcdc,panel" binding should not be used anymore, since tilcdc
> is fully capable of using generic drm panels like panel-simple and
> panel-common binding. However, the obsolete binding is still widely
> used in many mainline supported platforms that I do not have access to
> and who knows how many custom platforms. So I am afraid we have to
> keep the old bundled tilcdc panel driver around.
> 
> Signed-off-by: Jyri Sarha <jsarha at ti.com>
> ---
>  Documentation/devicetree/bindings/display/tilcdc/panel.txt | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/tilcdc/panel.txt b/Documentation/devicetree/bindings/display/tilcdc/panel.txt
> index 808216310ea2..54963f9173cc 100644
> --- a/Documentation/devicetree/bindings/display/tilcdc/panel.txt
> +++ b/Documentation/devicetree/bindings/display/tilcdc/panel.txt
> @@ -1,5 +1,11 @@
>  Device-Tree bindings for tilcdc DRM generic panel output driver
>  
> +NOTE: This binding (and the related driver) is obsolete and should not
> +      be used anymore. Please refer to drm panel-common binding (and
> +      to a generic drm panel driver like panel-simple).
> +      Documentation/devicetree/bindings/display/panel/panel-common.yaml
> +      (drivers/gpu/drm/panel/panel-simple.c)
> +

How about adding a WARN_ON() in the code when this binding is used ?
This could help getting those platforms converted.

>  Required properties:
>   - compatible: value should be "ti,tilcdc,panel".
>   - panel-info: configuration info to configure LCDC correctly for the panel

-- 
Regards,

Laurent Pinchart