hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

media: ov5640: fix restore of last mode set 

Mode setting depends on last mode set, in particular
because of exposure calculation when downscale mode
change between subsampling and scaling.
At stream on the last mode was wrongly set to current mode,
so no change was detected and exposure calculation
was not made, fix this.

Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hugues Fruchet 2018-09-11 09:48:21 -04:00 committed by Mauro Carvalho Chehab
parent a8f438c684
commit 985cdcb08a
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/media/i2c/ov5640.c
View File

@ -226,6 +226,7 @@ struct ov5640_dev {
bool pending_fmt_change;
const struct ov5640_mode_info *current_mode;
const struct ov5640_mode_info *last_mode;
enum ov5640_frame_rate current_fr;
struct v4l2_fract frame_interval;
@ -1629,10 +1630,10 @@ static int ov5640_set_mode_direct(struct ov5640_dev *sensor,
return ov5640_load_regs(sensor, mode);
}
static int ov5640_set_mode(struct ov5640_dev *sensor,
const struct ov5640_mode_info *orig_mode)
static int ov5640_set_mode(struct ov5640_dev *sensor)
{
const struct ov5640_mode_info *mode = sensor->current_mode;
const struct ov5640_mode_info *orig_mode = sensor->last_mode;
enum ov5640_downsize_mode dn_mode, orig_dn_mode;
bool auto_gain = sensor->ctrls.auto_gain->val == 1;
bool auto_exp = sensor->ctrls.auto_exp->val == V4L2_EXPOSURE_AUTO;
@ -1694,6 +1695,7 @@ static int ov5640_set_mode(struct ov5640_dev *sensor,
return ret;
sensor->pending_mode_change = false;
sensor->last_mode = mode;
return 0;
@ -1719,6 +1721,7 @@ static int ov5640_restore_mode(struct ov5640_dev *sensor)
ret = ov5640_load_regs(sensor, &ov5640_mode_init_data);
if (ret < 0)
return ret;
sensor->last_mode = &ov5640_mode_init_data;
ret = ov5640_mod_reg(sensor, OV5640_REG_SYS_ROOT_DIVIDER, 0x3f,
(ilog2(OV5640_SCLK2X_ROOT_DIVIDER_DEFAULT) << 2) |
@ -1727,7 +1730,7 @@ static int ov5640_restore_mode(struct ov5640_dev *sensor)
return ret;
/* now restore the last capture mode */
ret = ov5640_set_mode(sensor, &ov5640_mode_init_data);
ret = ov5640_set_mode(sensor);
if (ret < 0)
return ret;
@ -2610,7 +2613,7 @@ static int ov5640_s_stream(struct v4l2_subdev *sd, int enable)
if (sensor->streaming == !enable) {
if (enable && sensor->pending_mode_change) {
ret = ov5640_set_mode(sensor, sensor->current_mode);
ret = ov5640_set_mode(sensor);
if (ret)
goto out;
}
@ -2733,6 +2736,7 @@ static int ov5640_probe(struct i2c_client *client,
sensor->current_fr = OV5640_30_FPS;
sensor->current_mode =
&ov5640_mode_data[OV5640_30_FPS][OV5640_MODE_VGA_640_480];
sensor->last_mode = sensor->current_mode;
sensor->ae_target = 52;