linux-kernel - Re: [PATCH RFC v2] media: tvp514x: add OF support

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Message-ID: <510E61B7.6030904@ti.com>
Date:	Sun, 3 Feb 2013 18:40:15 +0530
From:	Sekhar Nori <nsekhar@...com>
To:	Prabhakar Lad <prabhakar.csengg@...il.com>
CC:	Sylwester Nawrocki <sylvester.nawrocki@...il.com>,
	Rob Landley <rob@...dley.net>,
	DLOS <davinci-linux-open-source@...ux.davincidsp.com>,
	Mauro Carvalho Chehab <mchehab@...hat.com>,
	<linux-doc@...r.kernel.org>, <devicetree-discuss@...ts.ozlabs.org>,
	<linux-kernel@...r.kernel.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Hans Verkuil <hans.verkuil@...co.com>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Sakari Ailus <sakari.ailus@....fi>,
	Guennadi Liakhovetski <g.liakhovetski@....de>,
	LMML <linux-media@...r.kernel.org>
Subject: Re: [PATCH RFC v2] media: tvp514x: add OF support

On 2/3/2013 3:43 PM, Prabhakar Lad wrote:
> Hi Sylwester,
> 
> Thanks for the review.
> 
> On Sat, Feb 2, 2013 at 4:07 AM, Sylwester Nawrocki
> <sylvester.nawrocki@...il.com> wrote:
>> Hi Prabhakar,
>>
>> On 01/29/2013 02:07 PM, Prabhakar Lad wrote:
>> [...]
>>
>>> diff --git a/Documentation/devicetree/bindings/media/i2c/tvp514x.txt
>>> b/Documentation/devicetree/bindings/media/i2c/tvp514x.txt
>>> new file mode 100644
>>> index 0000000..55d3ffd
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/media/i2c/tvp514x.txt
>>> @@ -0,0 +1,38 @@
>>> +* Texas Instruments TVP514x video decoder
>>> +
>>> +The TVP5146/TVP5146m2/TVP5147/TVP5147m1 device is high quality,
>>> single-chip
>>> +digital video decoder that digitizes and decodes all popular baseband
>>> analog
>>> +video formats into digital video component. The tvp514x decoder supports
>>> analog-
>>> +to-digital (A/D) conversion of component RGB and YPbPr signals as well as
>>> A/D
>>> +conversion and decoding of NTSC, PAL and SECAM composite and S-video into
>>> +component YCbCr.
>>> +
>>> +Required Properties :
>>> +- compatible: Must be "ti,tvp514x-decoder"
>>
>>
>> There are no significant differences among TVP514* devices as listed above,
>> you would like to handle above ?
>>
>> I'm just wondering if you don't need ,for instance, two separate compatible
>> properties, e.g. "ti,tvp5146-decoder" and "ti,tvp5147-decoder" ?
>>
> There are few differences in init/power sequence tough, I would still
> like to have
> single compatible property "ti,tvp514x-decoder", If you feel we need separate
> property I will change it please let me know on this.

Compatible properties should not use generic part numbers. See one past
discussion here: http://en.usenet.digipedia.org/thread/18472/20788/

Thanks,
Sekhar
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