author: Thierry Reding <treding@nvidia.com> 2021-04-01 17:41:04 +0200
committer: Thierry Reding <treding@nvidia.com> 2021-05-17 12:31:05 +0200
commit: 0cfe5a6e758fb20be8ad3e8f10cb087cc8033eeb
parent: 73a395c46704304b96bc5e2ee19be31124025c0c
Commit Summary:
Diffstat:
1 file changed, 23 insertions, 6 deletions
diff --git a/drivers/gpu/host1x/bus.c b/drivers/gpu/host1x/bus.c
index 46f69c532b6b..218e3718fd68 100644
--- a/drivers/gpu/host1x/bus.c
+++ b/drivers/gpu/host1x/bus.c
@@ -735,6 +735,29 @@ void host1x_driver_unregister(struct host1x_driver *driver)
}
EXPORT_SYMBOL(host1x_driver_unregister);
+/**
+ * __host1x_client_init() - initialize a host1x client
+ * @client: host1x client
+ * @key: lock class key for the client-specific mutex
+ */
+void __host1x_client_init(struct host1x_client *client, struct lock_class_key *key)
+{
+ INIT_LIST_HEAD(&client->list);
+ __mutex_init(&client->lock, "host1x client lock", key);
+ client->usecount = 0;
+}
+EXPORT_SYMBOL(__host1x_client_init);
+
+/**
+ * host1x_client_exit() - uninitialize a host1x client
+ * @client: host1x client
+ */
+void host1x_client_exit(struct host1x_client *client)
+{
+ mutex_destroy(&client->lock);
+}
+EXPORT_SYMBOL(host1x_client_exit);
+
/**
* __host1x_client_register() - register a host1x client
* @client: host1x client
@@ -747,16 +770,11 @@ EXPORT_SYMBOL(host1x_driver_unregister);
* device and call host1x_device_init(), which will in turn call each client's
* &host1x_client_ops.init implementation.
*/
-int __host1x_client_register(struct host1x_client *client,
- struct lock_class_key *key)
+int __host1x_client_register(struct host1x_client *client)
{
struct host1x *host1x;
int err;
- INIT_LIST_HEAD(&client->list);
- __mutex_init(&client->lock, "host1x client lock", key);
- client->usecount = 0;
-
mutex_lock(&devices_lock);
list_for_each_entry(host1x, &devices, list) {