diff options
Diffstat (limited to 'drivers/media/i2c/soc_camera/ov5642.c')
| -rw-r--r-- | drivers/media/i2c/soc_camera/ov5642.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/media/i2c/soc_camera/ov5642.c b/drivers/media/i2c/soc_camera/ov5642.c index 61824c6..d886c0b 100644 --- a/drivers/media/i2c/soc_camera/ov5642.c +++ b/drivers/media/i2c/soc_camera/ov5642.c @@ -980,29 +980,40 @@ static struct v4l2_subdev_ops ov5642_subdev_ops = { static int ov5642_video_probe(struct i2c_client *client) { + struct v4l2_subdev *subdev = i2c_get_clientdata(client); int ret; u8 id_high, id_low; u16 id; + ret = ov5642_s_power(subdev, 1); + if (ret < 0) + return ret; + /* Read sensor Model ID */ ret = reg_read(client, REG_CHIP_ID_HIGH, &id_high); if (ret < 0) - return ret; + goto done; id = id_high << 8; ret = reg_read(client, REG_CHIP_ID_LOW, &id_low); if (ret < 0) - return ret; + goto done; id |= id_low; dev_info(&client->dev, "Chip ID 0x%04x detected\n", id); - if (id != 0x5642) - return -ENODEV; + if (id != 0x5642) { + ret = -ENODEV; + goto done; + } - return 0; + ret = 0; + +done: + ov5642_s_power(subdev, 0); + return ret; } static int ov5642_probe(struct i2c_client *client, |
