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@xxxxxxxxx> --- drivers/media/i2c/ov13858.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/ov13858.c b/drivers/media/i2c/ov13858.c index 86550d8..8e6c8f0 100644 --- a/drivers/media/i2c/ov13858.c +++ b/drivers/media/i2c/ov13858.c @@ -1377,6 +1377,7 @@ static int ov13858_get_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 @@ static int ov13858_get_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; -- 1.9.1
