diff options
| author | Stefan Herbrechtsmeier <hbmeier@hni.uni-paderborn.de> | 2008-08-14 17:04:11 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-12 13:36:50 +0200 |
| commit | 81034663159f39d005316b5c139038459cd16721 (patch) | |
| tree | 8a86bc69b553bb2cb7656465b7449565427b197d /drivers/media/video/mt9m001.c | |
| parent | V4L/DVB (8686): mt9m111: style cleanup (diff) | |
| download | linux-81034663159f39d005316b5c139038459cd16721.tar.xz linux-81034663159f39d005316b5c139038459cd16721.zip | |
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.c | 33 |
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; } |