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

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Message-ID: <48989a76-f2b0-4cbc-80f0-bfd0d4c44bcb@collabora.com>
Date: Wed, 24 Jul 2024 22:17:23 +0200
From: Robert Mader <robert.mader@...labora.com>
To: Jacopo Mondi <jacopo.mondi@...asonboard.com>
Cc: linux-kernel@...r.kernel.org, jacopo@...ndi.org,
 sakari.ailus@...ux.intel.com, javierm@...hat.com
Subject: Re: [PATCH] media: i2c: imx355: Parse and register properties

Hi Jacopo,

thanks for the quick review!

Should I send a v2 for that (adding V4L2_CID_CAMERA_ORIENTATION and your 
RB to the commit message) - and if so should I first wait for more 
reviews or is that unnecessary/unlike to happen?

Regards,

Robert

On 24.07.24 09:31, Jacopo Mondi wrote:
> Hi Robert
>
> On Tue, Jul 23, 2024 at 08:58:56PM GMT, Robert Mader wrote:
>> Analogous to e.g. the imx219. This enables propagating
>> V4L2_CID_CAMERA_SENSOR_ROTATION values so that libcamera
> and V4L2_CID_CAMERA_ORIENTATION
>
>> can detect the correct rotation from the device tree
>> and propagate it further to e.g. Pipewire.
> Well, yes, that's a consequence. As long as Linux is concerned, this
> serves to register the two above mentioned controls.
>
>> Signed-off-by: Robert Mader <robert.mader@...labora.com>
> Reviewed-by: Jacopo Mondi <jacopo.mondi@...asonboard.com>
>
> Thanks
>    j
>
>> ---
>>   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;
>> --
>> 2.45.2
>>
-- 
Robert Mader
Consultant Software Developer

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