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Subject[PATCH v3 4/9] media: ov6650: Fix incorrect use of JPEG colorspace
Date
Since its initial submission, the driver selects V4L2_COLORSPACE_JPEG
for supported formats other than V4L2_MBUS_FMT_SBGGR8_1X8. According
to v4l2-compliance test program, V4L2_COLORSPACE_JPEG applies
exclusively to V4L2_PIX_FMT_JPEG. Since the sensor does not support
JPEG format, fix it to always select V4L2_COLORSPACE_SRGB.

Fixes: 2f6e2404799a ("[media] SoC Camera: add driver for OV6650 sensor")
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
---
drivers/media/i2c/ov6650.c | 13 ++-----------
1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/media/i2c/ov6650.c b/drivers/media/i2c/ov6650.c
index 983b72f33930..a7930ace3744 100644
--- a/drivers/media/i2c/ov6650.c
+++ b/drivers/media/i2c/ov6650.c
@@ -200,7 +200,6 @@ struct ov6650 {
unsigned long pclk_max; /* from resolution and format */
struct v4l2_fract tpf; /* as requested with s_frame_interval */
u32 code;
- enum v4l2_colorspace colorspace;
};


@@ -514,7 +513,7 @@ static int ov6650_get_fmt(struct v4l2_subdev *sd,
mf->width = priv->rect.width >> priv->half_scale;
mf->height = priv->rect.height >> priv->half_scale;
mf->code = priv->code;
- mf->colorspace = priv->colorspace;
+ mf->colorspace = V4L2_COLORSPACE_SRGB;
mf->field = V4L2_FIELD_NONE;

return 0;
@@ -622,11 +621,6 @@ static int ov6650_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf)
priv->pclk_max = 8000000;
}

- if (code == MEDIA_BUS_FMT_SBGGR8_1X8)
- priv->colorspace = V4L2_COLORSPACE_SRGB;
- else if (code != 0)
- priv->colorspace = V4L2_COLORSPACE_JPEG;
-
if (half_scale) {
dev_dbg(&client->dev, "max resolution: QCIF\n");
coma_set |= COMA_QCIF;
@@ -657,7 +651,6 @@ static int ov6650_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf)
ret = ov6650_reg_rmw(client, REG_COML, coml_set, coml_mask);

if (!ret) {
- mf->colorspace = priv->colorspace;
mf->width = priv->rect.width >> half_scale;
mf->height = priv->rect.height >> half_scale;
}
@@ -680,6 +673,7 @@ static int ov6650_set_fmt(struct v4l2_subdev *sd,
&mf->height, 2, H_CIF, 1, 0);

mf->field = V4L2_FIELD_NONE;
+ mf->colorspace = V4L2_COLORSPACE_SRGB;

switch (mf->code) {
case MEDIA_BUS_FMT_Y10_1X10:
@@ -690,13 +684,11 @@ static int ov6650_set_fmt(struct v4l2_subdev *sd,
case MEDIA_BUS_FMT_YUYV8_2X8:
case MEDIA_BUS_FMT_VYUY8_2X8:
case MEDIA_BUS_FMT_UYVY8_2X8:
- mf->colorspace = V4L2_COLORSPACE_JPEG;
break;
default:
mf->code = MEDIA_BUS_FMT_SBGGR8_1X8;
/* fall through */
case MEDIA_BUS_FMT_SBGGR8_1X8:
- mf->colorspace = V4L2_COLORSPACE_SRGB;
break;
}

@@ -1004,7 +996,6 @@ static int ov6650_probe(struct i2c_client *client,
priv->rect.height = H_CIF;
priv->half_scale = false;
priv->code = MEDIA_BUS_FMT_YUYV8_2X8;
- priv->colorspace = V4L2_COLORSPACE_JPEG;

priv->subdev.internal_ops = &ov6650_internal_ops;

--
2.21.0
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