diff options
Diffstat (limited to 'drivers')
| -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 23f9ce9..2b0927b 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; } |