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media: ov13858: Set default fps as current fps

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On format change, sometimes, sensor was streaming at a much higher
FPS than the default. This was resulting in various problems like
frame drops/corruption.

Upon format change, set default vblank as current vblank. This will
ensure that sensor will start streaming at default fps.

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 03:28:05 -04:00 committed by Mauro Carvalho Chehab
parent 8e2803ffd6
commit b3775edc66
1 changed files with 4 additions and 1 deletions
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5
drivers/media/i2c/ov13858.c
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@ -1377,6 +1377,7 @@ ov13858_set_pad_format(struct v4l2_subdev *sd,
struct ov13858 *ov13858 = to_ov13858(sd);
const struct ov13858_mode *mode;
struct v4l2_mbus_framefmt *framefmt;
s32 vblank_def;
s64 h_blank;
mutex_lock(&ov13858->mutex);
@ -1397,10 +1398,12 @@ ov13858_set_pad_format(struct v4l2_subdev *sd,
ov13858->pixel_rate,
link_freq_configs[mode->link_freq_index].pixel_rate);
/* Update limits and set FPS to default */
vblank_def = ov13858->cur_mode->vts - ov13858->cur_mode->height;
__v4l2_ctrl_modify_range(
ov13858->vblank, OV13858_VBLANK_MIN,
OV13858_VTS_MAX - ov13858->cur_mode->height, 1,
ov13858->cur_mode->vts - ov13858->cur_mode->height);
vblank_def);
__v4l2_ctrl_s_ctrl(ov13858->vblank, vblank_def);
h_blank =
link_freq_configs[mode->link_freq_index].pixels_per_line
- ov13858->cur_mode->width;