1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (c) 2015-2021, Linaro Limited
41 	if (!optee->rpmb_scan_bus_done) {  in optee_bus_scan_rpmb()
43 		optee->rpmb_scan_bus_done = !ret;  in optee_bus_scan_rpmb()
44 		if (ret && ret != -ENODEV)  in optee_bus_scan_rpmb()
54 	schedule_work(&optee->rpmb_scan_bus_work);  in optee_rpmb_intf_rdev()
70 	if (optee->in_kernel_rpmb_routing)  in rpmb_routing_model_show()
88 	tee_device_set_dev_groups(optee->teedev, optee_dev_groups);  in optee_set_dev_group()
89 	tee_device_set_dev_groups(optee->supp_teedev, optee_dev_groups);  in optee_set_dev_group()
95 	struct tee_device *teedev = ctx->teedev;  in optee_open()
100 		return -ENOMEM;  in optee_open()
102 	if (teedev == optee->supp_teedev) {  in optee_open()
105 		mutex_lock(&optee->supp.mutex);  in optee_open()
106 		if (!optee->supp.ctx) {  in optee_open()
108 			optee->supp.ctx = ctx;  in optee_open()
110 		mutex_unlock(&optee->supp.mutex);  in optee_open()
113 			return -EBUSY;  in optee_open()
116 		if (!optee->scan_bus_done) {  in optee_open()
117 			INIT_WORK(&optee->scan_bus_work, optee_bus_scan);  in optee_open()
118 			schedule_work(&optee->scan_bus_work);  in optee_open()
119 			optee->scan_bus_done = true;  in optee_open()
122 	mutex_init(&ctxdata->mutex);  in optee_open()
123 	INIT_LIST_HEAD(&ctxdata->sess_list);  in optee_open()
125 	ctx->cap_memref_null = cap_memref_null;  in optee_open()
126 	ctx->data = ctxdata;  in optee_open()
135 	struct optee_context_data *ctxdata = ctx->data;  in optee_release_helper()
142 	list_for_each_entry_safe(sess, sess_tmp, &ctxdata->sess_list,  in optee_release_helper()
144 		list_del(&sess->list_node);  in optee_release_helper()
145 		close_session(ctx, sess->session_id, sess->use_sys_thread);  in optee_release_helper()
149 	ctx->data = NULL;  in optee_release_helper()
159 	struct optee *optee = tee_get_drvdata(ctx->teedev);  in optee_release_supp()
163 	optee_supp_release(&optee->supp);  in optee_release_supp()
169 					   &optee->rpmb_intf);  in optee_remove_common()
170 	cancel_work_sync(&optee->rpmb_scan_bus_work);  in optee_remove_common()
171 	/* Unregister OP-TEE specific client devices on TEE bus */  in optee_remove_common()
176 	teedev_close_context(optee->ctx);  in optee_remove_common()
181 	tee_device_unregister(optee->supp_teedev);  in optee_remove_common()
182 	tee_device_unregister(optee->teedev);  in optee_remove_common()
184 	tee_shm_pool_free(optee->pool);  in optee_remove_common()
185 	optee_supp_uninit(&optee->supp);  in optee_remove_common()
186 	mutex_destroy(&optee->call_queue.mutex);  in optee_remove_common()
187 	rpmb_dev_put(optee->rpmb_dev);  in optee_remove_common()
188 	mutex_destroy(&optee->rpmb_dev_mutex);  in optee_remove_common()
203 	 * Therefore, we cannot reliably initialize the OP-TEE driver in the  in optee_core_init()
207 		return -ENODEV;  in optee_core_init()
247 MODULE_DESCRIPTION("OP-TEE driver");