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[media] adv7604: return immediately if the new timings are equal to what is configured 

Signed-off-by: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Mats Randgaard 2013-12-12 10:13:35 -03:00 committed by Mauro Carvalho Chehab
parent f24d229c1e
commit d48eb48cd4
1 changed files with 5 additions and 0 deletions
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5
drivers/media/i2c/adv7604.c
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@ -1423,6 +1423,11 @@ static int adv7604_s_dv_timings(struct v4l2_subdev *sd,
if (!timings)
return -EINVAL;
if (v4l2_match_dv_timings(&state->timings, timings, 0)) {
v4l2_dbg(1, debug, sd, "%s: no change\n", __func__);
return 0;
}
bt = &timings->bt;
if ((is_analog_input(sd) && bt->pixelclock > 170000000) ||