aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/video/mt9m001.c
diff options
context:
space:
mode:
authorStefan Herbrechtsmeier <hbmeier@hni.uni-paderborn.de>2008-08-14 12:04:11 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-12 09:36:50 -0200
commit81034663159f39d005316b5c139038459cd16721 (patch)
tree8a86bc69b553bb2cb7656465b7449565427b197d /drivers/media/video/mt9m001.c
parent506c629a8eb95a3232a0aafa3b80903224ccc461 (diff)
V4L/DVB (8687): soc-camera: Move .power and .reset from soc_camera host to sensor driver
Make .power and .reset callbacks per camera instead of per host, also move their invocation to camera drivers. .arch/arm/mach-pxa/include/mach/camera.h | 2 - Signed-off-by: Stefan Herbrechtsmeier <hbmeier@hni.uni-paderborn.de> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/mt9m001.c')
-rw-r--r--drivers/media/video/mt9m001.c33
1 files changed, 30 insertions, 3 deletions
diff --git a/drivers/media/video/mt9m001.c b/drivers/media/video/mt9m001.c
index 3531f9352dff..0c524376b67e 100644
--- a/drivers/media/video/mt9m001.c
+++ b/drivers/media/video/mt9m001.c
@@ -117,13 +117,33 @@ static int reg_clear(struct soc_camera_device *icd, const u8 reg,
static int mt9m001_init(struct soc_camera_device *icd)
{
+ struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct soc_camera_link *icl = mt9m001->client->dev.platform_data;
int ret;
dev_dbg(icd->vdev->parent, "%s\n", __func__);
- ret = reg_write(icd, MT9M001_RESET, 1);
- if (!ret)
- ret = reg_write(icd, MT9M001_RESET, 0);
+ if (icl->power) {
+ ret = icl->power(&mt9m001->client->dev, 1);
+ if (ret < 0) {
+ dev_err(icd->vdev->parent,
+ "Platform failed to power-on the camera.\n");
+ return ret;
+ }
+ }
+
+ /* The camera could have been already on, we reset it additionally */
+ if (icl->reset)
+ ret = icl->reset(&mt9m001->client->dev);
+ else
+ ret = -ENODEV;
+
+ if (ret < 0) {
+ /* Either no platform reset, or platform reset failed */
+ ret = reg_write(icd, MT9M001_RESET, 1);
+ if (!ret)
+ ret = reg_write(icd, MT9M001_RESET, 0);
+ }
/* Disable chip, synchronous option update */
if (!ret)
ret = reg_write(icd, MT9M001_OUTPUT_CONTROL, 0);
@@ -133,8 +153,15 @@ static int mt9m001_init(struct soc_camera_device *icd)
static int mt9m001_release(struct soc_camera_device *icd)
{
+ struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd);
+ struct soc_camera_link *icl = mt9m001->client->dev.platform_data;
+
/* Disable the chip */
reg_write(icd, MT9M001_OUTPUT_CONTROL, 0);
+
+ if (icl->power)
+ icl->power(&mt9m001->client->dev, 0);
+
return 0;
}

Privacy Policy