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

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On 05/12/2019 10:46, Laurent Pinchart wrote:
> 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@xxxxxx>
>> ---
>>  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 +NOTE: This binding (and the related driver) is obsolete and should not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.
> 

I don't see why not, I'll add that.

Thanks
Jyro

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


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