linux-kernel - [PATCH v2] media: i2c: imx355: Parse and register properties

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Message-ID: <20240811111718.22513-1-robert.mader@collabora.com>
Date: Sun, 11 Aug 2024 13:17:04 +0200
From: Robert Mader <robert.mader@...labora.com>
To: linux-kernel@...r.kernel.org
Cc: jacopo.mondi@...asonboard.com,
	sakari.ailus@...ux.intel.com,
	javierm@...hat.com,
	kieran.bingham@...asonboard.com,
	Robert Mader <robert.mader@...labora.com>
Subject: [PATCH v2] media: i2c: imx355: Parse and register properties

Analogous to e.g. the imx219 driver. This enables propagating the
V4L2_CID_CAMERA_SENSOR_ROTATION and V4L2_CID_CAMERA_ORIENTATION
values so that userspace - e.g. libcamera - can detect the
correct rotation and orientation from the device tree.

Signed-off-by: Robert Mader <robert.mader@...labora.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@...asonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@...asonboard.com>

---

Changes since v1:
 - Slightly changed the commit message
 - Added RBs
---
 drivers/media/i2c/imx355.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/imx355.c b/drivers/media/i2c/imx355.c
index 7e9c2f65fa08..0dd25eeea60b 100644
--- a/drivers/media/i2c/imx355.c
+++ b/drivers/media/i2c/imx355.c
@@ -1520,6 +1520,7 @@ static const struct v4l2_subdev_internal_ops imx355_internal_ops = {
 static int imx355_init_controls(struct imx355 *imx355)
 {
 	struct i2c_client *client = v4l2_get_subdevdata(&imx355->sd);
+	struct v4l2_fwnode_device_properties props;
 	struct v4l2_ctrl_handler *ctrl_hdlr;
 	s64 exposure_max;
 	s64 vblank_def;
@@ -1531,7 +1532,7 @@ static int imx355_init_controls(struct imx355 *imx355)
 	int ret;
 
 	ctrl_hdlr = &imx355->ctrl_handler;
-	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
+	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 12);
 	if (ret)
 		return ret;
 
@@ -1603,6 +1604,15 @@ static int imx355_init_controls(struct imx355 *imx355)
 		goto error;
 	}
 
+	ret = v4l2_fwnode_device_parse(&client->dev, &props);
+	if (ret)
+		goto error;
+
+	ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &imx355_ctrl_ops,
+					      &props);
+	if (ret)
+		goto error;
+
 	imx355->sd.ctrl_handler = ctrl_hdlr;
 
 	return 0;
-- 
2.46.0