[PATCH 17/21] media: ov5640: Register device properties

[Jacopo Mondi <jacopo@jmondi.org>]

Parse the device properties and register the rotation and orientation
V4L2 controls using v4l2_ctrl_new_fwnode_properties().

Remove the open-coded parsing of the rotation property and assume the
DTS is correct is providing either <0> or <180> as possible rotations.

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
---
 drivers/media/i2c/ov5640.c | 29 ++++++++++++-----------------
 1 file changed, 12 insertions(+), 17 deletions(-)

diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index 28da0ddd2a06..9d6eb3288b07 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -3164,6 +3164,7 @@ static int ov5640_init_controls(struct ov5640_dev *sensor)
 	const struct v4l2_ctrl_ops *ops = &ov5640_ctrl_ops;
 	struct ov5640_ctrls *ctrls = &sensor->ctrls;
 	struct v4l2_ctrl_handler *hdl = &ctrls->handler;
+	struct v4l2_fwnode_device_properties props;
 	unsigned int max_vblank;
 	unsigned int hblank;
 	int ret;
@@ -3240,6 +3241,17 @@ static int ov5640_init_controls(struct ov5640_dev *sensor)
 		goto free_ctrls;
 	}
 
+	ret = v4l2_fwnode_device_parse(&sensor->i2c_client->dev, &props);
+	if (ret)
+		goto free_ctrls;
+
+	if (props.rotation == 180)
+		sensor->upside_down = true;
+
+	ret = v4l2_ctrl_new_fwnode_properties(hdl, ops, &props);
+	if (ret)
+		goto free_ctrls;
+
 	ctrls->pixel_rate->flags |= V4L2_CTRL_FLAG_READ_ONLY;
 	ctrls->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
 	ctrls->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
@@ -3512,7 +3524,6 @@ static int ov5640_probe(struct i2c_client *client)
 	struct device *dev = &client->dev;
 	struct fwnode_handle *endpoint;
 	struct ov5640_dev *sensor;
-	u32 rotation;
 	int ret;
 
 	sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
@@ -3535,22 +3546,6 @@ static int ov5640_probe(struct i2c_client *client)
 
 	sensor->ae_target = 52;
 
-	/* optional indication of physical rotation of sensor */
-	ret = fwnode_property_read_u32(dev_fwnode(&client->dev), "rotation",
-				       &rotation);
-	if (!ret) {
-		switch (rotation) {
-		case 180:
-			sensor->upside_down = true;
-			fallthrough;
-		case 0:
-			break;
-		default:
-			dev_warn(dev, "%u degrees rotation is not supported, ignoring...\n",
-				 rotation);
-		}
-	}
-
 	endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev),
 						  NULL);
 	if (!endpoint) {
-- 
2.35.0