Hi Hans,
Thank you for the patch.
On Wednesday 17 Aug 2016 08:29:37 Hans Verkuil wrote:
> From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
>
> Add media controller support.
>
> Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
> ---
> drivers/media/i2c/ov7670.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/drivers/media/i2c/ov7670.c b/drivers/media/i2c/ov7670.c
> index 56cfb5c..25f46c7 100644
> --- a/drivers/media/i2c/ov7670.c
> +++ b/drivers/media/i2c/ov7670.c
> @@ -210,6 +210,7 @@ struct ov7670_devtype {
> struct ov7670_format_struct; /* coming later */
> struct ov7670_info {
> struct v4l2_subdev sd;
> + struct media_pad pad;
You could guard this with #if defined(CONFIG_MEDIA_CONTROLLER) as well. I'm
wondering, however, whether we shouldn't start making CONFIG_MEDIA_CONTROLLER
mandatory for I2C sensors.
> struct v4l2_ctrl_handler hdl;
> struct {
> /* gain cluster */
> @@ -1641,6 +1642,16 @@ static int ov7670_probe(struct i2c_client *client,
> v4l2_ctrl_handler_free(&info->hdl);
> return err;
> }
> +
> +#if defined(CONFIG_MEDIA_CONTROLLER)
> + info->pad.flags = MEDIA_PAD_FL_SOURCE;
> + info->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
> + ret = media_entity_pads_init(&info->sd.entity, 1, &info->pad);
> + if (ret < 0) {
> + v4l2_ctrl_handler_free(&info->hdl);
> + return ret;
> + }
> +#endif
> /*
> * We have checked empirically that hw allows to read back the gain
> * value chosen by auto gain but that's not the case for auto
exposure.
> @@ -1662,6 +1673,9 @@ static int ov7670_remove(struct i2c_client *client)
>
> v4l2_device_unregister_subdev(sd);
> v4l2_ctrl_handler_free(&info->hdl);
> +#if defined(CONFIG_MEDIA_CONTROLLER)
> + media_entity_cleanup(&sd->entity);
> +#endif
> return 0;
> }
--
Regards,
Laurent Pinchart
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