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From:   Quentin Schulz <foss+kernel@0leil.net>
Cc:     shawnx.tu@intel.com, mchehab@kernel.org, robh+dt@kernel.org,
        krzysztof.kozlowski+dt@linaro.org, linux-media@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        Quentin Schulz <quentin.schulz@theobroma-systems.com>,
        Quentin Schulz <foss+kernel@0leil.net>
Subject: [PATCH v2 3/3] media: i2c: ov5675: parse and register V4L2 device tree properties
Date:   Wed,  4 May 2022 15:55:43 +0200
Message-Id: <20220504135543.59522-3-foss+kernel@0leil.net>
In-Reply-To: <20220504135543.59522-1-foss+kernel@0leil.net>
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From: Quentin Schulz <quentin.schulz@theobroma-systems.com>

Parse V4L2 device tree properties and register controls for them.

Cc: Quentin Schulz <foss+kernel@0leil.net>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
---
 drivers/media/i2c/ov5675.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/ov5675.c b/drivers/media/i2c/ov5675.c
index ccbc8dc506ff..324992fca557 100644
--- a/drivers/media/i2c/ov5675.c
+++ b/drivers/media/i2c/ov5675.c
@@ -778,12 +778,14 @@ static const struct v4l2_ctrl_ops ov5675_ctrl_ops = {
 
 static int ov5675_init_controls(struct ov5675 *ov5675)
 {
+	struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
 	struct v4l2_ctrl_handler *ctrl_hdlr;
+	struct v4l2_fwnode_device_properties props;
 	s64 exposure_max, h_blank;
 	int ret;
 
 	ctrl_hdlr = &ov5675->ctrl_handler;
-	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
+	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
 	if (ret)
 		return ret;
 
@@ -837,9 +839,23 @@ static int ov5675_init_controls(struct ov5675 *ov5675)
 	if (ctrl_hdlr->error)
 		return ctrl_hdlr->error;
 
+	ret = v4l2_fwnode_device_parse(&client->dev, &props);
+	if (ret)
+		goto error;
+
+	ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &ov5675_ctrl_ops,
+					      &props);
+	if (ret)
+		goto error;
+
 	ov5675->sd.ctrl_handler = ctrl_hdlr;
 
 	return 0;
+
+error:
+	v4l2_ctrl_handler_free(ctrl_hdlr);
+
+	return ret;
 }
 
 static void ov5675_update_pad_format(const struct ov5675_mode *mode,
-- 
2.35.1