Commit a8e68c37 authored by Jonathan Corbet's avatar Jonathan Corbet Committed by Mauro Carvalho Chehab
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V4L/DVB: ov7670: Always rewrite clkrc when setting format 



That makes frame rate configuration persistent.

Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 46714209

drivers/media/video/ov7670.c

+5 −1
Original line number Diff line number Diff line
@@ -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;

}