linux-kernel - [PATCH 1/4] media: ov5647: Add set_fmt and get

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Date:   Mon, 13 Apr 2020 12:17:44 +0300
From:   Roman Kovalivskyi <roman.kovalivskyi@...ballogic.com>
To:     linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org
Cc:     Luis Oliveira <lolivei@...opsys.com>,
        Niklas Söderlund <niklas.soderlund@...natech.se>,
        Jacopo Mondi <jacopo@...ndi.org>,
        Michael Rodin <mrodin@...adit-jv.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Hugues Fruchet <hugues.fruchet@...com>,
        Maxime Ripard <mripard@...nel.org>,
        Adam Ford <aford173@...il.com>,
        Todor Tomov <todor.tomov@...aro.org>,
        Suresh Udipi <sudipi@...adit-jv.com>,
        Andrew Gabbasov <andrew_gabbasov@...tor.com>,
        Eugeniu Rosca <erosca@...adit-jv.com>,
        Dave Stevenson <dave.stevenson@...pberrypi.org>,
        Roman Kovalivskyi <roman.kovalivskyi@...ballogic.com>
Subject: [PATCH 1/4] media: ov5647: Add set_fmt and get_fmt calls.

From: Dave Stevenson <dave.stevenson@...pberrypi.org>

There's no way to query the subdevice for the supported
resolutions. Add set_fmt and get_fmt implementations. Since there's
only one format supported set_fmt does nothing and get returns single
format.

Signed-off-by: Dave Stevenson <dave.stevenson@...pberrypi.org>
Signed-off-by: Roman Kovalivskyi <roman.kovalivskyi@...ballogic.com>
---
 drivers/media/i2c/ov5647.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/media/i2c/ov5647.c b/drivers/media/i2c/ov5647.c
index e7d2e5b4ad4b..3e587eb0a30e 100644
--- a/drivers/media/i2c/ov5647.c
+++ b/drivers/media/i2c/ov5647.c
@@ -463,8 +463,30 @@ static int ov5647_enum_mbus_code(struct v4l2_subdev *sd,
 	return 0;
 }
 
+static int ov5647_set_get_fmt(struct v4l2_subdev *sd,
+			      struct v4l2_subdev_pad_config *cfg,
+			      struct v4l2_subdev_format *format)
+{
+	struct v4l2_mbus_framefmt *fmt = &format->format;
+
+	if (format->pad != 0)
+		return -EINVAL;
+
+	/* Only one format is supported, so return that */
+	memset(fmt, 0, sizeof(*fmt));
+	fmt->code = MEDIA_BUS_FMT_SBGGR8_1X8;
+	fmt->colorspace = V4L2_COLORSPACE_SRGB;
+	fmt->field = V4L2_FIELD_NONE;
+	fmt->width = 640;
+	fmt->height = 480;
+
+	return 0;
+}
+
 static const struct v4l2_subdev_pad_ops ov5647_subdev_pad_ops = {
 	.enum_mbus_code = ov5647_enum_mbus_code,
+	.set_fmt =	  ov5647_set_get_fmt,
+	.get_fmt =	  ov5647_set_get_fmt,
 };
 
 static const struct v4l2_subdev_ops ov5647_subdev_ops = {
-- 
2.17.1