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V4L/DVB: ov7670: Always rewrite clkrc when setting format 

That makes frame rate configuration persistent.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jonathan Corbet 2010-03-18 19:10:18 -03:00 committed by Mauro Carvalho Chehab
parent 467142093d
commit a8e68c37c8
1 changed files with 5 additions and 1 deletions
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6
drivers/media/video/ov7670.c
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@ -838,8 +838,12 @@ static int ov7670_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
* the other parameters or the image looks poor. If we're *not*
* doing RGB565, we must not rewrite clkrc or the image looks
* *really* poor.
*
* (Update) Now that we retain clkrc state, we should be able
* to write it unconditionally, and that will make the frame
* rate persistent too.
*/
if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_RGB565 && ret == 0)
if (ret == 0)
ret = ov7670_write(sd, REG_CLKRC, info->clkrc);
return ret;
}