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[media] cafe_ccic: fix colorspace corruption on resume 

If you suspend and resume during video capture, the video colours
are corrupted on resume. This is because the sensor is being unconditionally
powered off during the resume path.

Only power down during resume if the camera is not in use, and correctly
reconfigure the sensor during resume.
Fixes http://dev.laptop.org/ticket/10190

Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Daniel Drake 2010-10-27 10:55:00 -03:00 committed by Mauro Carvalho Chehab
parent c429e7b62a
commit ea7c681e89
1 changed files with 2 additions and 3 deletions
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5
drivers/media/video/cafe_ccic.c
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@ -859,8 +859,6 @@ static int cafe_cam_configure(struct cafe_camera *cam)
struct v4l2_mbus_framefmt mbus_fmt;
int ret;
if (cam->state != S_IDLE)
return -EINVAL;
v4l2_fill_mbus_format(&mbus_fmt, &cam->pix_format, cam->mbus_code);
ret = sensor_call(cam, core, init, 0);
if (ret == 0)
@ -2196,12 +2194,13 @@ static int cafe_pci_resume(struct pci_dev *pdev)
return ret;
}
cafe_ctlr_init(cam);
cafe_ctlr_power_down(cam);
mutex_lock(&cam->s_mutex);
if (cam->users > 0) {
cafe_ctlr_power_up(cam);
__cafe_cam_reset(cam);
} else {
cafe_ctlr_power_down(cam);
}
mutex_unlock(&cam->s_mutex);