Re: [PATCH v5] media: i2c: tvp7002: add OF support

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On Tue, Aug 13, 2013 at 6:30 AM, Kumar Gala <galak@xxxxxxxxxxxxxx> wrote:
>
> On Aug 11, 2013, at 1:25 AM, Lad, Prabhakar wrote:
>
>> From: "Lad, Prabhakar" <prabhakar.csengg@xxxxxxxxx>
>>
>> add OF support for the tvp7002 driver.
>>
>> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
>> ---
>> This patch depends on https://patchwork.kernel.org/patch/2842680/
>>
>> Changes for v5:
>> 1: Fixed review comments pointed by Hans.
>>
>> Changes for v4:
>> 1: Improved descrition of end point properties.
>>
>> Changes for v3:
>> 1: Fixed review comments pointed by Sylwester.
>>
>> .../devicetree/bindings/media/i2c/tvp7002.txt      |   53 ++++++++++++++++
>> drivers/media/i2c/tvp7002.c                        |   67 ++++++++++++++++++--
>> 2 files changed, 113 insertions(+), 7 deletions(-)
>> create mode 100644 Documentation/devicetree/bindings/media/i2c/tvp7002.txt
>>
>> diff --git a/Documentation/devicetree/bindings/media/i2c/tvp7002.txt b/Documentation/devicetree/bindings/media/i2c/tvp7002.txt
>> new file mode 100644
>> index 0000000..5f28b5d
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/media/i2c/tvp7002.txt
>> @@ -0,0 +1,53 @@
>> +* Texas Instruments TV7002 video decoder
>> +
>> +The TVP7002 device supports digitizing of video and graphics signal in RGB and
>> +YPbPr color space.
>> +
>> +Required Properties :
>> +- compatible : Must be "ti,tvp7002"
>> +
>> +Optional Properties:
>
>
>> +- hsync-active: HSYNC Polarity configuration for the bus. Default value when
>> +  this property is not specified is <0>.
>> +
>> +- vsync-active: VSYNC Polarity configuration for the bus. Default value when
>> +  this property is not specified is <0>.
>> +
>> +- pclk-sample: Clock polarity of the bus. Default value when this property is
>> +  not specified is <0>.
>> +
>> +- sync-on-green-active: Active state of Sync-on-green signal property of the
>> +  endpoint.
>> +  0 = Normal Operation (Active Low, Default)
>> +  1 = Inverted operation
>
> These seems better than what you have in video-interfaces.txt
>
Well it sounds the same, I would keep it as is, let me know if you still
want me to change.

>> +
>> +- field-even-active: Active-high Field ID output polarity control of the bus.
>> +  Under normal operation, the field ID output is set to logic 1 for an odd field
>> +  (field 1) and set to logic 0 for an even field (field 0).
>> +  0 = Normal Operation (Active Low, Default)
>> +  1 = FID output polarity inverted
>> +
>
> Why the duplication if this is covered in video-interfaces.txt?
>
The explanation in  video-interfaces.txt is more kind of generic and
the explanation
here is specific to this device.

Regards,
--Prabhakar Lad
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