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media: ov5640: do not change mode if format or frame interval is unchanged 

Save load of mode registers array when V4L2 client sets a format or a
frame interval which selects the same mode than the current one.

Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hugues Fruchet 2018-07-04 09:04:38 -04:00 committed by Mauro Carvalho Chehab
parent b5f6ec535f
commit 6949d86477
1 changed files with 9 additions and 5 deletions
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14
drivers/media/i2c/ov5640.c
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@ -1966,9 +1966,11 @@ static int ov5640_set_fmt(struct v4l2_subdev *sd,
goto out;
}
sensor->current_mode = new_mode;
sensor->fmt = *mbus_fmt;
sensor->pending_mode_change = true;
if (new_mode != sensor->current_mode) {
sensor->current_mode = new_mode;
sensor->fmt = *mbus_fmt;
sensor->pending_mode_change = true;
}
out:
mutex_unlock(&sensor->lock);
return ret;
@ -2508,8 +2510,10 @@ static int ov5640_s_frame_interval(struct v4l2_subdev *sd,
goto out;
}
sensor->current_mode = mode;
sensor->pending_mode_change = true;
if (mode != sensor->current_mode) {
sensor->current_mode = mode;
sensor->pending_mode_change = true;
}
out:
mutex_unlock(&sensor->lock);
return ret;