[PATCH v2 4/9] media: ov6650: Fix incorrect use of JPEG colorspace

[Janusz Krzysztofik]

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 <jmkrzy...@gmail.com>
Cc: sta...@vger.kernel.org
---
 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 751b48483f27..e7790e9b8887 100644
--- a/drivers/media/i2c/ov6650.c
+++ b/drivers/media/i2c/ov6650.c
@@ -203,7 +203,6 @@ 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;
 };
 
 
@@ -517,7 +516,7 @@ 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;
@@ -625,11 +624,6 @@ 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;
@@ -660,7 +654,6 @@ 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;
        }
@@ -683,6 +676,7 @@ 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:
@@ -693,13 +687,11 @@ 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;
        }
 
@@ -1007,7 +999,6 @@ 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;
        priv->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
-- 
2.21.0