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From: Janusz Krzysztofik <jmkrzyszt@gmail.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
	Janusz Krzysztofik <jmkrzyszt@gmail.com>,
	stable@vger.kernel.org
Subject: [PATCH v2 4/9] media: ov6650: Fix incorrect use of JPEG colorspace
Date: Tue, 21 May 2019 00:50:02 +0200
Message-ID: <20190520225007.2308-5-jmkrzyszt@gmail.com> (raw)
In-Reply-To: <20190520225007.2308-1-jmkrzyszt@gmail.com>

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>
Cc: stable@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


  parent reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-20 22:49 [PATCH v2 0/9] media: ov6650: A collection of fixes Janusz Krzysztofik
2019-05-20 22:49 ` [PATCH v2 1/9] media: ov6650: Fix MODDULE_DESCRIPTION Janusz Krzysztofik
2019-05-21  5:15   ` Greg KH
2019-05-21 17:55     ` Janusz Krzysztofik
2019-05-20 22:50 ` [PATCH v2 2/9] media: ov6650: Fix control handler not freed on init error Janusz Krzysztofik
2019-05-20 22:50 ` [PATCH v2 3/9] media: ov6650: Fix crop rectangle alignment not passed back Janusz Krzysztofik
2019-05-20 22:50 ` Janusz Krzysztofik [this message]
2019-05-20 22:50 ` [PATCH v2 5/9] media: ov6650: Fix some format attributes not under control Janusz Krzysztofik
2019-05-20 22:50 ` [PATCH v2 6/9] media: ov6650: Fix .get_fmt() V4L2_SUBDEV_FORMAT_TRY support Janusz Krzysztofik
2019-05-20 22:50 ` [PATCH v2 7/9] media: ov6650: Fix default format not applied on device probe Janusz Krzysztofik
2019-05-20 22:50 ` [PATCH v2 8/9] media: ov6650: Fix stored frame format not in sync with hardware Janusz Krzysztofik
2019-05-20 22:50 ` [PATCH v2 9/9] media: ov6650: Fix stored crop rectangle " Janusz Krzysztofik

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