linux-kernel - Re: [PATCH] [media] tvp5150: remove signal generator as input from the DT binding

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Message-ID: <56CC8887.803@osg.samsung.com>
Date:	Tue, 23 Feb 2016 13:27:51 -0300
From:	Javier Martinez Canillas <javier@....samsung.com>
To:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:	linux-kernel@...r.kernel.org,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	devicetree@...r.kernel.org, linux-media@...r.kernel.org
Subject: Re: [PATCH] [media] tvp5150: remove signal generator as input from
 the DT binding

Hello Laurent,

On 02/23/2016 01:16 PM, Laurent Pinchart wrote:
> Hi Javier,
>
> On Tuesday 23 February 2016 13:09:58 Javier Martinez Canillas wrote:
>> The chip internal signal generator was modelled as an input connector
>> and represented as a media entity but isn't really a connector so the
>> driver was changed to use the V4L2_CID_TEST_PATTERN control instead.
>>
>> Remove the signal generator input from the list of connectors in the
>> tvp5150 DT binding document as well since isn't a connector anymore.
>>
>> Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
>>
>> ---
>> Hello,
>>
>> I think is OK to change this DT binding because is only in the media tree
>> for now and not in mainline yet and also is expected to change more since
>> there are still discussions about how input connectors will be supported
>> by the Media Controller framework in the media subsystem.
>
> I think that's fine, yes
>
> Acked-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
>

Thanks.
  
> I haven't noticed the patch that introduced this early enough I'm afraid, and
> I think we still have issues with those bindings.
>

Yes, I posted those patches and got merged before we had the discussion about
input connectors over IRC so I didn't know what was the correct way to do it.

> The tvp5150 node should *not* contain connector subnodes, the connectors nodes
> should use the bindings defined in
> Documentation/devicetree/bindings/display/connector/ and be linked to the
> tvp5150 node using the OF graph bindings (ports and endpoints).
>

Agreed.

> Do you think you could fix that ?
>

Yes I will, I'm waiting for the input connectors discussions to settle so I
can post a final version of the DT bindings following what is agreed by all.

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America