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| author | Guennadi Liakhovetski <lg@denx.de> | 2009-04-03 10:14:02 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-04-06 21:43:57 -0300 |
| commit | f982651410f00378e42d9daab274adee5c762523 (patch) | |
| tree | ba5f003d6d650360bb15df26b430b5e280619e3d /drivers/media/video/mt9t031.c | |
| parent | 6252d25776f7e74f22acad7acb0165338927fe1e (diff) | |
| download | linux-f982651410f00378e42d9daab274adee5c762523.tar.gz linux-f982651410f00378e42d9daab274adee5c762523.tar.bz2 linux-f982651410f00378e42d9daab274adee5c762523.zip | |
V4L/DVB (11347): mt9t031: use platform power hook
Use platform power hook to turn the camera on and off.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/mt9t031.c')
| -rw-r--r-- | drivers/media/video/mt9t031.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/media/video/mt9t031.c b/drivers/media/video/mt9t031.c index 23f9ce9d67ef..2b0927bfd217 100644 --- a/drivers/media/video/mt9t031.c +++ b/drivers/media/video/mt9t031.c @@ -141,8 +141,19 @@ static int get_shutter(struct soc_camera_device *icd, u32 *data) static int mt9t031_init(struct soc_camera_device *icd) { + struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd); + struct soc_camera_link *icl = mt9t031->client->dev.platform_data; int ret; + if (icl->power) { + ret = icl->power(&mt9t031->client->dev, 1); + if (ret < 0) { + dev_err(icd->vdev->parent, + "Platform failed to power-on the camera.\n"); + return ret; + } + } + /* Disable chip output, synchronous option update */ ret = reg_write(icd, MT9T031_RESET, 1); if (ret >= 0) @@ -150,13 +161,23 @@ static int mt9t031_init(struct soc_camera_device *icd) if (ret >= 0) ret = reg_clear(icd, MT9T031_OUTPUT_CONTROL, 2); + if (ret < 0 && icl->power) + icl->power(&mt9t031->client->dev, 0); + return ret >= 0 ? 0 : -EIO; } static int mt9t031_release(struct soc_camera_device *icd) { + struct mt9t031 *mt9t031 = container_of(icd, struct mt9t031, icd); + struct soc_camera_link *icl = mt9t031->client->dev.platform_data; + /* Disable the chip */ reg_clear(icd, MT9T031_OUTPUT_CONTROL, 2); + + if (icl->power) + icl->power(&mt9t031->client->dev, 0); + return 0; } |