diff options
Diffstat (limited to 'drivers/gpu/host1x/bus.c')
| -rw-r--r-- | drivers/gpu/host1x/bus.c | 30 |
1 files changed, 24 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 @@ -736,6 +736,29 @@ 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 * @key: lock class key for the client-specific mutex @@ -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) { |