mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-07 23:20:32 -04:00
Code Issues Packages Projects Releases Wiki Activity

media: imx: mipi csi-2: Create media links in bound notifier

Browse Source 
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: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Steve Longerbeam
2020-05-01 19:15:47 +02:00
committed by Mauro Carvalho Chehab
parent 612b385efb
commit 8b4713c993
1 changed files with 22 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/staging/media/imx/imx6-mipi-csi2.c
View File

@@ -14,6 +14,7 @@
#include <linux/platform_device.h>
#include <media/v4l2-device.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-mc.h>
#include <media/v4l2-subdev.h>
#include "imx-media.h"
@@ -91,6 +92,11 @@ static inline struct csi2_dev *sd_to_dev(struct v4l2_subdev *sdev)
return container_of(sdev, struct csi2_dev, sd);
}
static inline struct csi2_dev *notifier_to_dev(struct v4l2_async_notifier *n)
{
return container_of(n, struct csi2_dev, notifier);
}
/*
* The required sequence of MIPI CSI-2 startup as specified in the i.MX6
* reference manual is as follows:
@@ -532,6 +538,20 @@ static const struct v4l2_subdev_internal_ops csi2_internal_ops = {
.registered = csi2_registered,
};
static int csi2_notify_bound(struct v4l2_async_notifier *notifier,
struct v4l2_subdev *sd,
struct v4l2_async_subdev *asd)
{
struct csi2_dev *csi2 = notifier_to_dev(notifier);
struct media_pad *sink = &csi2->sd.entity.pads[CSI2_SINK_PAD];
return v4l2_create_fwnode_links_to_pad(sd, sink);
}
static const struct v4l2_async_notifier_operations csi2_notify_ops = {
.bound = csi2_notify_bound,
};
static int csi2_async_register(struct csi2_dev *csi2)
{
struct v4l2_fwnode_endpoint vep = {
@@ -570,6 +590,8 @@ static int csi2_async_register(struct csi2_dev *csi2)
fwnode_handle_put(ep);
csi2->notifier.ops = &csi2_notify_ops;
ret = v4l2_async_subdev_notifier_register(&csi2->sd,
&csi2->notifier);
if (ret)