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media: ov13858: Fix initial expsoure max 

Previously, initial exposure max was set incorrectly to (0x7fff - 8).
Now, limit exposure max to current resolution (VTS - 8).

Signed-off-by: Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Chiranjeevi Rapolu 2017-07-27 03:44:19 -04:00 committed by Mauro Carvalho Chehab
parent b3775edc66
commit 33eea13263
1 changed files with 3 additions and 2 deletions
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5
drivers/media/i2c/ov13858.c
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@ -66,7 +66,6 @@
/* Exposure control */
#define OV13858_REG_EXPOSURE 0x3500
#define OV13858_EXPOSURE_MIN 4
#define OV13858_EXPOSURE_MAX (OV13858_VTS_MAX - 8)
#define OV13858_EXPOSURE_STEP 1
#define OV13858_EXPOSURE_DEFAULT 0x640
@ -1605,6 +1604,7 @@ static int ov13858_init_controls(struct ov13858 *ov13858)
{
struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
struct v4l2_ctrl_handler *ctrl_hdlr;
s64 exposure_max;
int ret;
ctrl_hdlr = &ov13858->ctrl_handler;
@ -1643,10 +1643,11 @@ static int ov13858_init_controls(struct ov13858 *ov13858)
OV13858_PPL_1080MHZ - ov13858->cur_mode->width);
ov13858->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
exposure_max = ov13858->cur_mode->vts - 8;
ov13858->exposure = v4l2_ctrl_new_std(
ctrl_hdlr, &ov13858_ctrl_ops,
V4L2_CID_EXPOSURE, OV13858_EXPOSURE_MIN,
OV13858_EXPOSURE_MAX, OV13858_EXPOSURE_STEP,
exposure_max, OV13858_EXPOSURE_STEP,
OV13858_EXPOSURE_DEFAULT);
v4l2_ctrl_new_std(ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,