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media: vivid: fix gain when autogain is on

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In the vivid driver you want gain to continuous change while autogain
is on. However, dev->jiffies_vid_cap doesn't actually change. It probably
did in the past, but changes in the code caused this to be a fixed value
that is only set when you start streaming.

Replace it by jiffies, which is always changing.

[mchehab@kernel.org: use jiffies_to_msecs() instead of dividing by HZ]

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil 2018-06-29 05:40:41 -04:00 committed by Mauro Carvalho Chehab
parent 9f84310d88
commit 83a729530a
1 changed files with 1 additions and 1 deletions
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2
drivers/media/platform/vivid/vivid-ctrls.c
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@ -295,7 +295,7 @@ static int vivid_user_vid_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
switch (ctrl->id) {
case V4L2_CID_AUTOGAIN:
dev->gain->val = dev->jiffies_vid_cap & 0xff;
dev->gain->val = (jiffies_to_msecs(jiffies) / 1000) & 0xff;
break;
}
return 0;