Change au0828 to use Media Device Allocator API and new Media Controller
media_device_unregister_put() interface. Fix to unregister entity_notify
hook.
Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
---
drivers/media/usb/au0828/au0828-core.c | 40 ++++++++++++++++++++++++----------
drivers/media/usb/au0828/au0828.h | 1 +
2 files changed, 29 insertions(+), 12 deletions(-)
diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c
index cc22b32..c34af36 100644
--- a/drivers/media/usb/au0828/au0828-core.c
+++ b/drivers/media/usb/au0828/au0828-core.c
@@ -131,22 +131,36 @@ static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value,
return status;
}
+#ifdef CONFIG_MEDIA_CONTROLLER
+static void au0828_media_graph_notify(struct media_entity *new,
+ void *notify_data);
+#endif
+
static void au0828_unregister_media_device(struct au0828_dev *dev)
{
#ifdef CONFIG_MEDIA_CONTROLLER
- if (dev->media_dev &&
- media_devnode_is_registered(&dev->media_dev->devnode)) {
- /* clear enable_source, disable_source */
- dev->media_dev->source_priv = NULL;
- dev->media_dev->enable_source = NULL;
- dev->media_dev->disable_source = NULL;
-
- media_device_unregister(dev->media_dev);
- media_device_cleanup(dev->media_dev);
- kfree(dev->media_dev);
- dev->media_dev = NULL;
+ struct media_device *mdev = dev->media_dev;
+ struct media_entity_notify *notify, *nextp;
+
+ if (!mdev || !media_devnode_is_registered(&mdev->devnode))
+ return;
+
+ /* Remove au0828 entity_notify callbacks */
+ list_for_each_entry_safe(notify, nextp, &mdev->entity_notify, list) {
+ if (notify->notify != au0828_media_graph_notify)
+ continue;
+ media_device_unregister_entity_notify(mdev, notify);
}
+
+ /* clear enable_source, disable_source */
+ dev->media_dev->source_priv = NULL;
+ dev->media_dev->enable_source = NULL;
+ dev->media_dev->disable_source = NULL;
+
+ media_device_unregister_put(dev->media_dev);
+ media_device_put(dev->media_dev->dev);
+ dev->media_dev = NULL;
#endif
}
@@ -198,7 +212,7 @@ static int au0828_media_device_init(struct au0828_dev *dev,
#ifdef CONFIG_MEDIA_CONTROLLER
struct media_device *mdev;
- mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
+ mdev = media_device_get(&udev->dev);
if (!mdev)
return -ENOMEM;
@@ -473,11 +487,13 @@ static int au0828_media_device_register(struct au0828_dev *dev,
/* register media device */
ret = media_device_register(dev->media_dev);
if (ret) {
+ media_device_put(dev->media_dev->dev);
dev_err(&udev->dev,
"Media Device Register Error: %d\n", ret);
return ret;
}
} else {
+ media_device_register_ref(dev->media_dev);
/*
* Call au0828_media_graph_notify() to connect
* audio graph to our graph. In this case, audio
diff --git a/drivers/media/usb/au0828/au0828.h b/drivers/media/usb/au0828/au0828.h
index 87f3284..3edd50f 100644
--- a/drivers/media/usb/au0828/au0828.h
+++ b/drivers/media/usb/au0828/au0828.h
@@ -35,6 +35,7 @@
#include <media/v4l2-ctrls.h>
#include <media/v4l2-fh.h>
#include <media/media-device.h>
+#include <media/media-dev-allocator.h>
/* DVB */
#include "demux.h"
--
2.5.0
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