Commit 94b99296 authored by Steve Longerbeam's avatar Steve Longerbeam Committed by Mauro Carvalho Chehab
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media: imx7: csi: Create media links in bound notifier 



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: default avatarSteve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: default avatarRui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent 6e996653

drivers/staging/media/imx/imx7-media-csi.c

+22 −0
Original line number Diff line number Diff line
@@ -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);
@@ -1204,6 +1210,20 @@ static const struct v4l2_subdev_internal_ops imx7_csi_internal_ops = { 
	.unregistered	= imx7_csi_unregistered,

};



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 v4l2_create_fwnode_links_to_pad(sd, sink);

}



static const struct v4l2_async_notifier_operations imx7_csi_notify_ops = {

	.bound = imx7_csi_notify_bound,

};



static int imx7_csi_async_register(struct imx7_csi *csi)

{

	struct v4l2_async_subdev *asd = NULL;
@@ -1234,6 +1254,8 @@ static int imx7_csi_async_register(struct imx7_csi *csi) 
		}

	}



	csi->notifier.ops = &imx7_csi_notify_ops;



	ret = v4l2_async_subdev_notifier_register(&csi->sd, &csi->notifier);

	if (ret)

		return ret;