drivers/slimbus/messaging.c

26 	struct slim_msg_txn *txn;
31 	txn = idr_find(&ctrl->tid_idr, tid);
34 	if (txn == NULL)
37 	msg = txn->msg;
44 	slim_free_txn_tid(ctrl, txn);
46 	if (txn->comp)
47 		complete(txn->comp);
49 	/* Remove runtime-pm vote now that response was received for TID txn */
56  * slim_alloc_txn_tid() - Allocate a tid to txn
59  * @txn: transaction to be allocated with tid.
61  * Return: zero on success with valid txn->tid and error code on failures.
63 int slim_alloc_txn_tid(struct slim_controller *ctrl, struct slim_msg_txn *txn)
69 	ret = idr_alloc_cyclic(&ctrl->tid_idr, txn, 1,
75 	txn->tid = ret;
82  * slim_free_txn_tid() - Free tid of txn
85  * @txn: transaction whose tid should be freed
87 void slim_free_txn_tid(struct slim_controller *ctrl, struct slim_msg_txn *txn)
92 	idr_remove(&ctrl->tid_idr, txn->tid);
101  * @txn: Transaction to be sent over SLIMbus
110 int slim_do_transfer(struct slim_controller *ctrl, struct slim_msg_txn *txn)
121 		(txn->mt == SLIM_MSG_MT_CORE &&
122 		 txn->mc >= SLIM_MSG_MC_BEGIN_RECONFIGURATION &&
123 		 txn->mc <= SLIM_MSG_MC_RECONFIGURE_NOW))
135 	txn->tid = 0;
136 	need_tid = slim_tid_txn(txn->mt, txn->mc);
139 		ret = slim_alloc_txn_tid(ctrl, txn);
143 		if (!txn->msg->comp)
144 			txn->comp = &done;
146 			txn->comp = txn->comp;
149 	ret = ctrl->xfer_msg(ctrl, txn);
151 	if (!ret && need_tid && !txn->msg->comp) {
152 		unsigned long ms = txn->rl + HZ;
154 		timeout = wait_for_completion_timeout(txn->comp,
158 			slim_free_txn_tid(ctrl, txn);
164 			txn->mt, txn->mc, txn->la, ret);
167 	if (!clk_pause_msg && (txn->tid == 0  || ret == -ETIMEDOUT)) {
237 	struct slim_msg_txn *txn = &txn_stack;
254 	txn->ec = ((sl | (1 << 3)) | ((msg->start_offset & 0xFFF) << 4));
261 		txn->rl += msg->num_bytes;
267 	if (slim_tid_txn(txn->mt, txn->mc))
268 		txn->rl++;
270 	return slim_do_transfer(ctrl, txn);