Hi all, Please ignore this v2, the v1 was merged. I've just pushed a new patch which fixes the regression observed, see: https://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg134413.html Sorry for inconvenience. Best regards, Hugues. On 08/13/2018 11:21 AM, Hugues Fruchet wrote: > Save load of mode registers array when V4L2 client sets a format or a > frame interval which selects the same mode than the current one. > > Signed-off-by: Hugues Fruchet <hugues.fruchet@xxxxxx> > --- > Version 2: > - Fix fuzzy image because of JPEG default format not being > changed according to new format selected, fix this. > - Init sequence initialises format to YUV422 UYVY but > sensor->fmt initial value was set to JPEG, fix this. > > > drivers/media/i2c/ov5640.c | 33 ++++++++++++++++++++++++--------- > 1 file changed, 24 insertions(+), 9 deletions(-) > > diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c > index 1ecbb7a..2ddd86d 100644 > --- a/drivers/media/i2c/ov5640.c > +++ b/drivers/media/i2c/ov5640.c > @@ -223,6 +223,7 @@ struct ov5640_dev { > int power_count; > > struct v4l2_mbus_framefmt fmt; > + bool pending_fmt_change; > > const struct ov5640_mode_info *current_mode; > enum ov5640_frame_rate current_fr; > @@ -255,7 +256,7 @@ static inline struct v4l2_subdev *ctrl_to_sd(struct v4l2_ctrl *ctrl) > * should be identified and removed to speed register load time > * over i2c. > */ > - > +/* YUV422 UYVY VGA@30fps */ > static const struct reg_value ov5640_init_setting_30fps_VGA[] = { > {0x3103, 0x11, 0, 0}, {0x3008, 0x82, 0, 5}, {0x3008, 0x42, 0, 0}, > {0x3103, 0x03, 0, 0}, {0x3017, 0x00, 0, 0}, {0x3018, 0x00, 0, 0}, > @@ -1966,9 +1967,14 @@ static int ov5640_set_fmt(struct v4l2_subdev *sd, > goto out; > } > > - sensor->current_mode = new_mode; > - sensor->fmt = *mbus_fmt; > - sensor->pending_mode_change = true; > + if (new_mode != sensor->current_mode) { > + sensor->current_mode = new_mode; > + sensor->pending_mode_change = true; > + } > + if (mbus_fmt->code != sensor->fmt.code) { > + sensor->fmt = *mbus_fmt; > + sensor->pending_fmt_change = true; > + } > out: > mutex_unlock(&sensor->lock); > return ret; > @@ -2508,8 +2514,10 @@ static int ov5640_s_frame_interval(struct v4l2_subdev *sd, > goto out; > } > > - sensor->current_mode = mode; > - sensor->pending_mode_change = true; > + if (mode != sensor->current_mode) { > + sensor->current_mode = mode; > + sensor->pending_mode_change = true; > + } > out: > mutex_unlock(&sensor->lock); > return ret; > @@ -2540,10 +2548,13 @@ static int ov5640_s_stream(struct v4l2_subdev *sd, int enable) > ret = ov5640_set_mode(sensor, sensor->current_mode); > if (ret) > goto out; > + } > > + if (enable && sensor->pending_fmt_change) { > ret = ov5640_set_framefmt(sensor, &sensor->fmt); > if (ret) > goto out; > + sensor->pending_fmt_change = false; > } > > if (sensor->ep.bus_type == V4L2_MBUS_CSI2) > @@ -2638,9 +2649,14 @@ static int ov5640_probe(struct i2c_client *client, > return -ENOMEM; > > sensor->i2c_client = client; > + > + /* > + * default init sequence initialize sensor to > + * YUV422 UYVY VGA@30fps > + */ > fmt = &sensor->fmt; > - fmt->code = ov5640_formats[0].code; > - fmt->colorspace = ov5640_formats[0].colorspace; > + fmt->code = MEDIA_BUS_FMT_UYVY8_2X8; > + fmt->colorspace = V4L2_COLORSPACE_SRGB; > fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace); > fmt->quantization = V4L2_QUANTIZATION_FULL_RANGE; > fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace); > @@ -2652,7 +2668,6 @@ 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->pending_mode_change = true; > > sensor->ae_target = 52; > >
