From fb98e29ff1ea5a8118265d11f0e03bc8608a49cb Mon Sep 17 00:00:00 2001 From: Hugues Fruchet Date: Thu, 16 Aug 2018 05:46:53 -0400 Subject: [PATCH] media: ov5640: fix mode change regression fixes: 6949d864776e ("media: ov5640: do not change mode if format or frame interval is unchanged"). Symptom was 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. Signed-off-by: Hugues Fruchet Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/ov5640.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c index 071f4bc240ca..2ddd86ddf649 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}, @@ -1968,9 +1969,12 @@ static int ov5640_set_fmt(struct v4l2_subdev *sd, if (new_mode != sensor->current_mode) { sensor->current_mode = new_mode; - sensor->fmt = *mbus_fmt; 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; @@ -2544,10 +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) @@ -2642,9 +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); @@ -2656,7 +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; -- 2.45.2