diff options
Diffstat (limited to 'drivers/media/i2c/mt9p031.c')
| -rw-r--r-- | drivers/media/i2c/mt9p031.c | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/drivers/media/i2c/mt9p031.c b/drivers/media/i2c/mt9p031.c index 9102b2346f7c..e18797ff7faf 100644 --- a/drivers/media/i2c/mt9p031.c +++ b/drivers/media/i2c/mt9p031.c @@ -647,6 +647,28 @@ static int mt9p031_set_crop(struct v4l2_subdev *subdev, #define V4L2_CID_BLC_ANALOG_OFFSET (V4L2_CID_USER_BASE | 0x1004) #define V4L2_CID_BLC_DIGITAL_OFFSET (V4L2_CID_USER_BASE | 0x1005) +static int mt9p031_restore_blc(struct mt9p031 *mt9p031) +{ + struct i2c_client *client = v4l2_get_subdevdata(&mt9p031->subdev); + int ret; + + if (mt9p031->blc_auto->cur.val != 0) { + ret = mt9p031_set_mode2(mt9p031, 0, + MT9P031_READ_MODE_2_ROW_BLC); + if (ret < 0) + return ret; + } + + if (mt9p031->blc_offset->cur.val != 0) { + ret = mt9p031_write(client, MT9P031_ROW_BLACK_TARGET, + mt9p031->blc_offset->cur.val); + if (ret < 0) + return ret; + } + + return 0; +} + static int mt9p031_s_ctrl(struct v4l2_ctrl *ctrl) { struct mt9p031 *mt9p031 = @@ -722,16 +744,10 @@ static int mt9p031_s_ctrl(struct v4l2_ctrl *ctrl) if (!ctrl->val) { /* Restore the BLC settings. */ - if (mt9p031->blc_auto->cur.val != 0) { - ret = mt9p031_s_ctrl(mt9p031->blc_auto); - if (ret < 0) - return ret; - } - if (mt9p031->blc_offset->cur.val != 0) { - ret = mt9p031_s_ctrl(mt9p031->blc_offset); - if (ret < 0) - return ret; - } + ret = mt9p031_restore_blc(mt9p031); + if (ret < 0) + return ret; + return mt9p031_write(client, MT9P031_TEST_PATTERN, MT9P031_TEST_PATTERN_DISABLE); } |