16 #include "bcm-voter.h"
24  * @dev: reference to the device that communicates with the BCM
25  * @np: reference to the device node to match bcm voters
29  * @voter_node: list of bcm voters
68 static void bcm_aggregate(struct qcom_icc_bcm *bcm)  in bcm_aggregate()  argument
77 		for (i = 0; i < bcm->num_nodes; i++) {  in bcm_aggregate()
78 			node = bcm->nodes[i];  in bcm_aggregate()
79 			temp = bcm_div(node->sum_avg[bucket] * bcm->aux_data.width,  in bcm_aggregate()
83 			temp = bcm_div(node->max_peak[bucket] * bcm->aux_data.width,  in bcm_aggregate()
88 		temp = agg_avg[bucket] * bcm->vote_scale;  in bcm_aggregate()
89 		bcm->vote_x[bucket] = bcm_div(temp, bcm->aux_data.unit);  in bcm_aggregate()
91 		temp = agg_peak[bucket] * bcm->vote_scale;  in bcm_aggregate()
92 		bcm->vote_y[bucket] = bcm_div(temp, bcm->aux_data.unit);  in bcm_aggregate()
94 		if (bcm->enable_mask && (bcm->vote_x[bucket] || bcm->vote_y[bucket])) {  in bcm_aggregate()
95 			bcm->vote_x[bucket] = 0;  in bcm_aggregate()
96 			bcm->vote_y[bucket] = bcm->enable_mask;  in bcm_aggregate()
100 	if (bcm->keepalive && bcm->vote_x[QCOM_ICC_BUCKET_AMC] == 0 &&  in bcm_aggregate()
101 	    bcm->vote_y[QCOM_ICC_BUCKET_AMC] == 0) {  in bcm_aggregate()
102 		bcm->vote_x[QCOM_ICC_BUCKET_AMC] = 1;  in bcm_aggregate()
103 		bcm->vote_x[QCOM_ICC_BUCKET_WAKE] = 1;  in bcm_aggregate()
104 		bcm->vote_y[QCOM_ICC_BUCKET_AMC] = 1;  in bcm_aggregate()
105 		bcm->vote_y[QCOM_ICC_BUCKET_WAKE] = 1;  in bcm_aggregate()
143 	struct qcom_icc_bcm *bcm;  in tcs_list_gen()  local
149 	list_for_each_entry(bcm, bcm_list, list) {  in tcs_list_gen()
152 		if ((list_is_last(&bcm->list, bcm_list)) ||  in tcs_list_gen()
153 		    bcm->aux_data.vcd != list_next_entry(bcm, list)->aux_data.vcd) {  in tcs_list_gen()
160 		tcs_cmd_gen(&tcs_list[idx], bcm->vote_x[bucket],  in tcs_list_gen()
161 			    bcm->vote_y[bucket], bcm->addr, commit, wait);  in tcs_list_gen()
167 		 * to ensure that every BCM is committed since we only set the  in tcs_list_gen()
168 		 * commit bit on the last BCM request of every VCD.  in tcs_list_gen()
181  * of_bcm_voter_get - gets a bcm voter handle from DT node
183  * @name: name for the bcm voter device
189  * when matching bcm voter is yet to be found.
204 		idx = of_property_match_string(np, "qcom,bcm-voter-names", name);  in of_bcm_voter_get()
209 	node = of_parse_phandle(np, "qcom,bcm-voters", idx);  in of_bcm_voter_get()
226  * qcom_icc_bcm_voter_add - queues up the bcm nodes that require updates
228  * @bcm: bcm to add to the commit and wake sleep list
230 void qcom_icc_bcm_voter_add(struct bcm_voter *voter, struct qcom_icc_bcm *bcm)  in qcom_icc_bcm_voter_add()  argument
236 	if (list_empty(&bcm->list))  in qcom_icc_bcm_voter_add()
237 		list_add_tail(&bcm->list, &voter->commit_list);  in qcom_icc_bcm_voter_add()
239 	if (list_empty(&bcm->ws_list))  in qcom_icc_bcm_voter_add()
240 		list_add_tail(&bcm->ws_list, &voter->ws_list);  in qcom_icc_bcm_voter_add()
250  * This function generates a set of AMC commands and flushes to the BCM device
253  * through multiple commit requests and bcm nodes are removed only when the
260 	struct qcom_icc_bcm *bcm;  in qcom_icc_bcm_voter_commit()  local
270 	list_for_each_entry(bcm, &voter->commit_list, list)  in qcom_icc_bcm_voter_commit()
271 		bcm_aggregate(bcm);  in qcom_icc_bcm_voter_commit()
300 	list_for_each_entry_safe(bcm, bcm_tmp, &voter->commit_list, list)  in qcom_icc_bcm_voter_commit()
301 		list_del_init(&bcm->list);  in qcom_icc_bcm_voter_commit()
303 	list_for_each_entry_safe(bcm, bcm_tmp, &voter->ws_list, ws_list) {  in qcom_icc_bcm_voter_commit()
309 		if (bcm->vote_x[QCOM_ICC_BUCKET_WAKE] !=  in qcom_icc_bcm_voter_commit()
310 		    bcm->vote_x[QCOM_ICC_BUCKET_SLEEP] ||  in qcom_icc_bcm_voter_commit()
311 		    bcm->vote_y[QCOM_ICC_BUCKET_WAKE] !=  in qcom_icc_bcm_voter_commit()
312 		    bcm->vote_y[QCOM_ICC_BUCKET_SLEEP])  in qcom_icc_bcm_voter_commit()
313 			list_add_tail(&bcm->list, &voter->commit_list);  in qcom_icc_bcm_voter_commit()
315 			list_del_init(&bcm->ws_list);  in qcom_icc_bcm_voter_commit()
340 	list_for_each_entry_safe(bcm, bcm_tmp, &voter->commit_list, list)  in qcom_icc_bcm_voter_commit()
341 		list_del_init(&bcm->list);  in qcom_icc_bcm_voter_commit()
375 	{ .compatible = "qcom,bcm-voter" },
390 MODULE_DESCRIPTION("Qualcomm BCM Voter interconnect driver");