Thread (9 messages) 9 messages, 4 authors, 2013-02-03

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

From: Prabhakar Lad <prabhakar.csengg@gmail.com>
Date: 2013-02-03 16:12:38
Also in: linux-media, lkml

Hi Laurent,

On Sun, Feb 3, 2013 at 6:44 PM, Laurent Pinchart
[off-list ref] wrote:
Hi Prabhakar,

On Sunday 03 February 2013 15:43:49 Prabhakar Lad wrote:
quoted
On Sat, Feb 2, 2013 at 4:07 AM, Sylwester Nawrocki wrote:
quoted
On 01/29/2013 02:07 PM, Prabhakar Lad wrote:
[...]
quoted
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.
If there's any difference between the chips that need to be handled in the
driver, using two compatible properties is a good practice. Your driver will
then be able to easily differentiate between the two chips, and there's no
real drawback in doing so.
Ok I'll will have separate compatible properties.

Regards,
--Prabhakar
--
Regards,

Laurent Pinchart
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