Hi Steve,
On Sun, Nov 24, 2019 at 11:06:57AM -0800, Steve Longerbeam wrote:
> Implement a notifier bound op to register media links from the remote
> sub-device's source pad(s) to the CSI sink pad.
>
> Signed-off-by: Steve Longerbeam <slongerbeam@xxxxxxxxx>
> ---
> Changes in v2:
> Rename notifier_to_dev() to imx7_csi_notifier_to_dev() and remove
> unnecessary inline.
> Suggested-by: Rui Miguel Silva <rmfrfs@xxxxxxxxx>
Many thanks for this.
Reviewed-by: Rui Miguel Silva <rmfrfs@xxxxxxxxx>
------
Cheers,
Rui
> ---
> drivers/staging/media/imx/imx7-media-csi.c | 25 ++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
>
> diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c
> index 15b08bfb5aa7..848d1286fbeb 100644
> --- a/drivers/staging/media/imx/imx7-media-csi.c
> +++ b/drivers/staging/media/imx/imx7-media-csi.c
> @@ -196,6 +196,12 @@ struct imx7_csi {
> struct completion last_eof_completion;
> };
>
> +static struct imx7_csi *
> +imx7_csi_notifier_to_dev(struct v4l2_async_notifier *n)
> +{
> + return container_of(n, struct imx7_csi, notifier);
> +}
> +
> static u32 imx7_csi_reg_read(struct imx7_csi *csi, unsigned int offset)
> {
> return readl(csi->regbase + offset);
> @@ -1187,6 +1193,23 @@ static int imx7_csi_parse_endpoint(struct device *dev,
> return fwnode_device_is_available(asd->match.fwnode) ? 0 : -EINVAL;
> }
>
> +static int imx7_csi_notify_bound(struct v4l2_async_notifier *notifier,
> + struct v4l2_subdev *sd,
> + struct v4l2_async_subdev *asd)
> +{
> + struct imx7_csi *csi = imx7_csi_notifier_to_dev(notifier);
> + struct media_pad *sink = &csi->sd.entity.pads[IMX7_CSI_PAD_SINK];
> +
> + return media_create_fwnode_pad_links(sink,
> + dev_fwnode(csi->sd.dev),
> + &sd->entity,
> + dev_fwnode(sd->dev), 0);
> +}
> +
> +static const struct v4l2_async_notifier_operations imx7_csi_notify_ops = {
> + .bound = imx7_csi_notify_bound,
> +};
> +
> static int imx7_csi_probe(struct platform_device *pdev)
> {
> struct device *dev = &pdev->dev;
> @@ -1269,6 +1292,8 @@ static int imx7_csi_probe(struct platform_device *pdev)
>
> v4l2_async_notifier_init(&csi->notifier);
>
> + csi->notifier.ops = &imx7_csi_notify_ops;
> +
> ret = v4l2_async_register_fwnode_subdev(&csi->sd, &csi->notifier,
> sizeof(struct v4l2_async_subdev),
> NULL, 0,
> --
> 2.17.1
>
