Commit 6e996653 authored by Steve Longerbeam's avatar Steve Longerbeam Committed by Mauro Carvalho Chehab
Browse files

media: imx7: mipi csis: 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 mipi csi-2 receiver sink pad.

Signed-off-by: default avatarSteve Longerbeam <slongerbeam@gmail.com>
Acked-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 8b4713c9

drivers/staging/media/imx/imx7-mipi-csis.c

+23 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 


#include <media/v4l2-device.h>

#include <media/v4l2-fwnode.h>

#include <media/v4l2-mc.h>

#include <media/v4l2-subdev.h>



#define CSIS_DRIVER_NAME			"imx7-mipi-csis"
@@ -385,6 +386,12 @@ static int mipi_csis_dump_regs(struct csi_state *state) 
	return 0;

}



static struct csi_state *

mipi_notifier_to_csis_state(struct v4l2_async_notifier *n)

{

	return container_of(n, struct csi_state, notifier);

}



static struct csi_state *mipi_sd_to_csis_state(struct v4l2_subdev *sdev)

{

	return container_of(sdev, struct csi_state, mipi_sd);
@@ -948,6 +955,20 @@ static int mipi_csis_parse_dt(struct platform_device *pdev, 


static int mipi_csis_pm_resume(struct device *dev, bool runtime);



static int mipi_csis_notify_bound(struct v4l2_async_notifier *notifier,

				  struct v4l2_subdev *sd,

				  struct v4l2_async_subdev *asd)

{

	struct csi_state *state = mipi_notifier_to_csis_state(notifier);

	struct media_pad *sink = &state->mipi_sd.entity.pads[CSIS_PAD_SINK];



	return v4l2_create_fwnode_links_to_pad(sd, sink);

}



static const struct v4l2_async_notifier_operations mipi_csis_notify_ops = {

	.bound = mipi_csis_notify_bound,

};



static int mipi_csis_subdev_init(struct v4l2_subdev *mipi_sd,

				 struct platform_device *pdev,

				 const struct v4l2_subdev_ops *ops)
@@ -1016,6 +1037,8 @@ static int mipi_csis_async_register(struct csi_state *state) 


	fwnode_handle_put(ep);



	state->notifier.ops = &mipi_csis_notify_ops;



	ret = v4l2_async_subdev_notifier_register(&state->mipi_sd,

						  &state->notifier);

	if (ret)