linux-kernel - [PATCH] media: i2c: imx258: Parse and register properties

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20221225154234.378555-1-robert.mader@collabora.com>
Date:   Sun, 25 Dec 2022 16:42:34 +0100
From:   Robert Mader <robert.mader@...labora.com>
To:     linux-kernel@...r.kernel.org
Cc:     nicholas@...hemail.net, javierm@...hat.com, jacopo@...ndi.org,
        Robert Mader <robert.mader@...labora.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org
Subject: [PATCH] media: i2c: imx258: Parse and register properties

Analogous to e.g. the imx219. This enables propagating
V4L2_CID_CAMERA_SENSOR_ROTATION values so that libcamera
can detect the correct rotation from the device tree
and propagate it further to e.g. Pipewire.

Signed-off-by: Robert Mader <robert.mader@...labora.com>
---
 drivers/media/i2c/imx258.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c
index eab5fc1ee2f7..85819043d1e3 100644
--- a/drivers/media/i2c/imx258.c
+++ b/drivers/media/i2c/imx258.c
@@ -9,6 +9,7 @@
 #include <linux/pm_runtime.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
 #include <asm/unaligned.h>
 
 #define IMX258_REG_VALUE_08BIT		1
@@ -1149,6 +1150,7 @@ static int imx258_init_controls(struct imx258 *imx258)
 {
 	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
 	struct v4l2_ctrl_handler *ctrl_hdlr;
+	struct v4l2_fwnode_device_properties props;
 	s64 vblank_def;
 	s64 vblank_min;
 	s64 pixel_rate_min;
@@ -1156,7 +1158,7 @@ static int imx258_init_controls(struct imx258 *imx258)
 	int ret;
 
 	ctrl_hdlr = &imx258->ctrl_handler;
-	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
+	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
 	if (ret)
 		return ret;
 
@@ -1232,6 +1234,15 @@ static int imx258_init_controls(struct imx258 *imx258)
 		goto error;
 	}
 
+	ret = v4l2_fwnode_device_parse(&client->dev, &props);
+	if (ret)
+		goto error;
+
+	ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &imx258_ctrl_ops,
+					      &props);
+	if (ret)
+		goto error;
+
 	imx258->sd.ctrl_handler = ctrl_hdlr;
 
 	return 0;
-- 
2.39.0