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media: i2c: imx219: apply gain/exposure immediately

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or it's too slow for AEC algorithm

Change-Id: I646a31b026a1e753e8bee681d088c7b2944ed147
Signed-off-by: Jacob Chen <jacob2.chen@rock-chips.com>
This commit is contained in:
Jacob Chen 2018-01-10 12:44:02 +08:00
commit fbe1b71c32
1 changed files with 12 additions and 20 deletions
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32
drivers/media/i2c/imx219.c
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@ -338,23 +338,6 @@ static int imx219_s_stream(struct v4l2_subdev *sd, int enable)
if (ret)
return ret;
/* Handle analogue gain */
ret = reg_write(client, 0x0157, priv->analogue_gain);
if (ret)
return ret;
/* Handle digital gain */
ret = reg_write(client, 0x0158, priv->digital_gain >> 8);
ret |= reg_write(client, 0x0159, priv->digital_gain & 0xff);
if (ret)
return ret;
/* Handle exposure time */
ret = reg_write(client, 0x015a, priv->exposure_time >> 8);
ret |= reg_write(client, 0x015b, priv->exposure_time & 0xff);
if (ret)
return ret;
/* Handle test pattern */
if (priv->test_pattern) {
ret = reg_write(client, 0x0600, priv->test_pattern >> 8);
@ -493,6 +476,7 @@ static int imx219_s_ctrl(struct v4l2_ctrl *ctrl)
container_of(ctrl->handler, struct imx219, ctrl_handler);
struct i2c_client *client = v4l2_get_subdevdata(&priv->subdev);
u8 reg;
int ret;
switch (ctrl->id) {
case V4L2_CID_HFLIP:
@ -511,7 +495,9 @@ static int imx219_s_ctrl(struct v4l2_ctrl *ctrl)
*/
priv->analogue_gain =
256 - ((256 * IMX219_ANALOGUE_GAIN_MULTIPLIER) / ctrl->val);
break;
ret = reg_write(client, 0x0157, priv->analogue_gain);
return ret;
case V4L2_CID_GAIN:
/*
* Register value goes from 256 to 4095, and the digital gain
@ -519,10 +505,16 @@ static int imx219_s_ctrl(struct v4l2_ctrl *ctrl)
* to 24dB.
*/
priv->digital_gain = ctrl->val;
break;
ret = reg_write(client, 0x0158, priv->digital_gain >> 8);
ret |= reg_write(client, 0x0159, priv->digital_gain & 0xff);
return ret;
case V4L2_CID_EXPOSURE:
priv->exposure_time = ctrl->val;
break;
ret = reg_write(client, 0x015a, priv->exposure_time >> 8);
ret |= reg_write(client, 0x015b, priv->exposure_time & 0xff);
return ret;
case V4L2_CID_TEST_PATTERN:
return imx219_s_ctrl_test_pattern(ctrl);
default: