linux-kernel - [PATCH v5 2/6] media: imx335: Parse fwnode properties

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Message-ID: <20240412122842.193713-3-umang.jain@ideasonboard.com>
Date: Fri, 12 Apr 2024 17:58:38 +0530
From: Umang Jain <umang.jain@...asonboard.com>
To: linux-media@...r.kernel.org
Cc: Alexander Shiyan <eagle.alexander923@...il.com>,
	Kieran Bingham <kieran.bingham@...asonboard.com>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	open list <linux-kernel@...r.kernel.org>,
	Umang Jain <umang.jain@...asonboard.com>
Subject: [PATCH v5 2/6] media: imx335: Parse fwnode properties

From: Kieran Bingham <kieran.bingham@...asonboard.com>

Call the V4L2 fwnode device parser to handle controls that are
standardised by the framework.

Signed-off-by: Kieran Bingham <kieran.bingham@...asonboard.com>
Signed-off-by: Umang Jain <umang.jain@...asonboard.com>
---
 drivers/media/i2c/imx335.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c
index c633ea1380e7..3ea9c0ebe278 100644
--- a/drivers/media/i2c/imx335.c
+++ b/drivers/media/i2c/imx335.c
@@ -1227,10 +1227,12 @@ static int imx335_init_controls(struct imx335 *imx335)
 {
 	struct v4l2_ctrl_handler *ctrl_hdlr = &imx335->ctrl_handler;
 	const struct imx335_mode *mode = imx335->cur_mode;
+	struct v4l2_fwnode_device_properties props;
 	u32 lpfr;
 	int ret;
 
-	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 7);
+	/* v4l2_fwnode_device_properties can add two more controls */
+	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 9);
 	if (ret)
 		return ret;
 
@@ -1295,9 +1297,15 @@ static int imx335_init_controls(struct imx335 *imx335)
 	if (imx335->hblank_ctrl)
 		imx335->hblank_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
 
-	if (ctrl_hdlr->error) {
-		dev_err(imx335->dev, "control init failed: %d\n",
-			ctrl_hdlr->error);
+	ret = v4l2_fwnode_device_parse(imx335->dev, &props);
+	if (!ret) {
+		/* Failure sets ctrl_hdlr->error, which we check afterwards anyway */
+		v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &imx335_ctrl_ops,
+						&props);
+	}
+
+	if (ctrl_hdlr->error || ret) {
+		dev_err(imx335->dev, "control init failed: %d\n", ctrl_hdlr->error);
 		v4l2_ctrl_handler_free(ctrl_hdlr);
 		return ctrl_hdlr->error;
 	}
-- 
2.43.0