Hi Robert
On Wed, Jan 04, 2023 at 01:23:37PM +0100, Robert Mader wrote:
> Analogous to e.g. the imx219. This enables propagating
> V4L2_CID_CAMERA_ORIENTATION and V4L2_CID_CAMERA_SENSOR_ROTATION
> values.
> The motivation is to allow libcamera detect these values from the
> device tree and propagate them further to e.g. Pipewire.
>
> While at it, reserve space for 3 additional controls even if
> v4l2_ctrl_new_fwnode_properties() can only register 2 of
> them, to fix the existing implementation which reserve space for 8
> controls but actually registers 9.
>
> Changes in v2:
> - Reserve 11 instead of 10 controls
> - Change order of variable declaration
> - Slightly extend description
This part should go below, after ---, as it shouldn't be part of the commit
message
The patch looks good
Reviewed-by: Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx>
>
> Signed-off-by: Robert Mader <robert.mader@xxxxxxxxxxxxx>
> ---
> 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..3b560865b657 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
> @@ -1148,6 +1149,7 @@ static const struct v4l2_subdev_internal_ops imx258_internal_ops = {
> static int imx258_init_controls(struct imx258 *imx258)
> {
> struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
> + struct v4l2_fwnode_device_properties props;
> struct v4l2_ctrl_handler *ctrl_hdlr;
> s64 vblank_def;
> s64 vblank_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, 11);
> 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
>
