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2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4

 kernel/drivers/rpmsg/rpmsg_internal.h
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@@ -2,6 +2,7 @@
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 /*
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  * remote processor messaging bus internals
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  *
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+ * Copyright (c) 2020 The Linux Foundation.
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  * Copyright (C) 2011 Texas Instruments, Inc.
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  * Copyright (C) 2011 Google, Inc.
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  *
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@@ -20,7 +21,7 @@
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 /**
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  * struct rpmsg_device_ops - indirection table for the rpmsg_device operations
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- * @create_ept:		create backend-specific endpoint, requried
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+ * @create_ept:		create backend-specific endpoint, required
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  * @announce_create:	announce presence of new channel, optional
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  * @announce_destroy:	announce destruction of channel, optional
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  *
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@@ -39,13 +40,16 @@
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 /**
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  * struct rpmsg_endpoint_ops - indirection table for rpmsg_endpoint operations
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- * @destroy_ept:	destroy the given endpoint, required
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+ * @destroy_ept:	see @rpmsg_destroy_ept(), required
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  * @send:		see @rpmsg_send(), required
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  * @sendto:		see @rpmsg_sendto(), optional
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  * @send_offchannel:	see @rpmsg_send_offchannel(), optional
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  * @trysend:		see @rpmsg_trysend(), required
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  * @trysendto:		see @rpmsg_trysendto(), optional
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  * @trysend_offchannel:	see @rpmsg_trysend_offchannel(), optional
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+ * @poll:		see @rpmsg_poll(), optional
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+ * @get_signals:	see @rpmsg_get_signals(), optional
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+ * @set_signals:	see @rpmsg_set_signals(), optional
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  *
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  * Indirection table for the operations that a rpmsg backend should implement.
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  * In addition to @destroy_ept, the backend must at least implement @send and
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@@ -65,6 +69,8 @@
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 			     void *data, int len);
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 	__poll_t (*poll)(struct rpmsg_endpoint *ept, struct file *filp,
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 			     poll_table *wait);
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+	int (*get_signals)(struct rpmsg_endpoint *ept);
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+	int (*set_signals)(struct rpmsg_endpoint *ept, u32 set, u32 clear);
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 };
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 int rpmsg_register_device(struct rpmsg_device *rpdev);