Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-16 08:02:17 +00:00
Code Issues Packages Projects Releases Wiki Activity

media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power

Browse Source 
When the subdevice doesn't provide s_power core ops callback, the
v4l2_subdev_call for s_power returns -ENOIOCTLCMD.  If the subdevice
doesn't have the special handling for its power saving mode, the s_power
isn't required.  So -ENOIOCTLCMD from the v4l2_subdev_call should be
ignored.

Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.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:
Akinobu Mita 2018-06-10 11:42:01 -04:00 committed by Mauro Carvalho Chehab
parent 2ec7debd44
commit 30ed2b8334
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/platform/s3c-camif/camif-capture.c
View File

@ -117,6 +117,8 @@ static int sensor_set_power(struct camif_dev *camif, int on)
if (camif->sensor.power_count == !on)
err = v4l2_subdev_call(sensor->sd, core, s_power, on);
if (err == -ENOIOCTLCMD)
err = 0;
if (!err)
sensor->power_count += on ? 1 : -1;