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-rw-r--r--include/media/media-device.h13
1 files changed, 5 insertions, 8 deletions
diff --git a/include/media/media-device.h b/include/media/media-device.h
index df74cfa7da4a..a9b33c47310d 100644
--- a/include/media/media-device.h
+++ b/include/media/media-device.h
@@ -25,7 +25,6 @@
#include <linux/list.h>
#include <linux/mutex.h>
-#include <linux/spinlock.h>
#include <media/media-devnode.h>
#include <media/media-entity.h>
@@ -304,8 +303,7 @@ struct media_entity_notify {
* @pads: List of registered pads
* @links: List of registered links
* @entity_notify: List of registered entity_notify callbacks
- * @lock: Entities list lock
- * @graph_mutex: Entities graph operation lock
+ * @graph_mutex: Protects access to struct media_device data
* @pm_count_walk: Graph walk for power state walk. Access serialised using
* graph_mutex.
*
@@ -313,7 +311,8 @@ struct media_entity_notify {
* @enable_source: Enable Source Handler function pointer
* @disable_source: Disable Source Handler function pointer
*
- * @link_notify: Link state change notification callback
+ * @link_notify: Link state change notification callback. This callback is
+ * called with the graph_mutex held.
*
* This structure represents an abstract high-level media device. It allows easy
* access to entities and provides basic media device-level support. The
@@ -357,7 +356,7 @@ struct media_device {
u32 hw_revision;
u32 driver_version;
- u32 topology_version;
+ u64 topology_version;
u32 id;
struct ida entity_internal_idx;
@@ -371,8 +370,6 @@ struct media_device {
/* notify callback list invoked when a new entity is registered */
struct list_head entity_notify;
- /* Protects the graph objects creation/removal */
- spinlock_t lock;
/* Serializes graph operations. */
struct mutex graph_mutex;
struct media_entity_graph pm_count_walk;
@@ -494,7 +491,7 @@ int __must_check __media_device_register(struct media_device *mdev,
#define media_device_register(mdev) __media_device_register(mdev, THIS_MODULE)
/**
- * __media_device_unregister() - Unegisters a media device element
+ * media_device_unregister() - Unregisters a media device element
*
* @mdev: pointer to struct &media_device
*