62  * struct qcom_smsm - smsm driver context
63  * @dev:	smsm device pointer
95  * @smsm:	back-reference to driver context
106 	struct qcom_smsm *smsm;  member
132  * @data:	smsm context pointer
141 	struct qcom_smsm *smsm = data;  in smsm_update_bits()  local
149 	spin_lock_irqsave(&smsm->lock, flags);  in smsm_update_bits()
152 	val = orig = readl(smsm->local_state);  in smsm_update_bits()
159 		spin_unlock_irqrestore(&smsm->lock, flags);  in smsm_update_bits()
164 	writel(val, smsm->local_state);  in smsm_update_bits()
165 	spin_unlock_irqrestore(&smsm->lock, flags);  in smsm_update_bits()
171 	for (host = 0; host < smsm->num_hosts; host++) {  in smsm_update_bits()
172 		hostp = &smsm->hosts[host];  in smsm_update_bits()
174 		val = readl(smsm->subscription + host);  in smsm_update_bits()
191  * smsm_intr() - cascading IRQ handler for SMSM
240 	struct qcom_smsm *smsm = entry->smsm;  in smsm_mask_irq()  local
244 		val = readl(entry->subscription + smsm->local_host);  in smsm_mask_irq()
246 		writel(val, entry->subscription + smsm->local_host);  in smsm_mask_irq()
263 	struct qcom_smsm *smsm = entry->smsm;  in smsm_unmask_irq()  local
275 		val = readl(entry->subscription + smsm->local_host);  in smsm_unmask_irq()
277 		writel(val, entry->subscription + smsm->local_host);  in smsm_unmask_irq()
324 	.name           = "smsm",
357  * @smsm:	smsm driver context
363 static int smsm_parse_ipc(struct qcom_smsm *smsm, unsigned host_id)  in smsm_parse_ipc()  argument
366 	struct device_node *node = smsm->dev->of_node;  in smsm_parse_ipc()
367 	struct smsm_host *host = &smsm->hosts[host_id];  in smsm_parse_ipc()
383 		dev_err(smsm->dev, "no offset in %s\n", key);  in smsm_parse_ipc()
389 		dev_err(smsm->dev, "no bit in %s\n", key);  in smsm_parse_ipc()
398  * @smsm:	smsm driver context
402 static int smsm_inbound_entry(struct qcom_smsm *smsm,  in smsm_inbound_entry()  argument
411 		dev_err(smsm->dev, "failed to parse smsm interrupt\n");  in smsm_inbound_entry()
415 	ret = devm_request_threaded_irq(smsm->dev, irq,  in smsm_inbound_entry()
418 					"smsm", (void *)entry);  in smsm_inbound_entry()
420 		dev_err(smsm->dev, "failed to request interrupt\n");  in smsm_inbound_entry()
426 		dev_err(smsm->dev, "failed to add irq_domain\n");  in smsm_inbound_entry()
435  * @smsm:	smsm driver context
444 static int smsm_get_size_info(struct qcom_smsm *smsm)  in smsm_get_size_info()  argument
457 			dev_err(smsm->dev, "unable to retrieve smsm size info\n");  in smsm_get_size_info()
460 		dev_warn(smsm->dev, "no smsm size info, using defaults\n");  in smsm_get_size_info()
461 		smsm->num_entries = SMSM_DEFAULT_NUM_ENTRIES;  in smsm_get_size_info()
462 		smsm->num_hosts = SMSM_DEFAULT_NUM_HOSTS;  in smsm_get_size_info()
466 	smsm->num_entries = info->num_entries;  in smsm_get_size_info()
467 	smsm->num_hosts = info->num_hosts;  in smsm_get_size_info()
469 	dev_dbg(smsm->dev,  in smsm_get_size_info()
470 		"found custom size of smsm: %d entries %d hosts\n",  in smsm_get_size_info()
471 		smsm->num_entries, smsm->num_hosts);  in smsm_get_size_info()
481 	struct qcom_smsm *smsm;  in qcom_smsm_probe()  local
488 	smsm = devm_kzalloc(&pdev->dev, sizeof(*smsm), GFP_KERNEL);  in qcom_smsm_probe()
489 	if (!smsm)  in qcom_smsm_probe()
491 	smsm->dev = &pdev->dev;  in qcom_smsm_probe()
492 	spin_lock_init(&smsm->lock);  in qcom_smsm_probe()
494 	ret = smsm_get_size_info(smsm);  in qcom_smsm_probe()
498 	smsm->entries = devm_kcalloc(&pdev->dev,  in qcom_smsm_probe()
499 				     smsm->num_entries,  in qcom_smsm_probe()
502 	if (!smsm->entries)  in qcom_smsm_probe()
505 	smsm->hosts = devm_kcalloc(&pdev->dev,  in qcom_smsm_probe()
506 				   smsm->num_hosts,  in qcom_smsm_probe()
509 	if (!smsm->hosts)  in qcom_smsm_probe()
523 			     &smsm->local_host);  in qcom_smsm_probe()
526 	for (id = 0; id < smsm->num_hosts; id++) {  in qcom_smsm_probe()
527 		ret = smsm_parse_ipc(smsm, id);  in qcom_smsm_probe()
532 	/* Acquire the main SMSM state vector */  in qcom_smsm_probe()
534 			      smsm->num_entries * sizeof(u32));  in qcom_smsm_probe()
548 	size = smsm->num_entries * smsm->num_hosts * sizeof(u32);  in qcom_smsm_probe()
551 		dev_err(&pdev->dev, "unable to allocate smsm interrupt mask\n");  in qcom_smsm_probe()
563 	smsm->local_state = states + smsm->local_host;  in qcom_smsm_probe()
564 	smsm->subscription = intr_mask + smsm->local_host * smsm->num_hosts;  in qcom_smsm_probe()
567 	smsm->state = qcom_smem_state_register(local_node, &smsm_state_ops, smsm);  in qcom_smsm_probe()
568 	if (IS_ERR(smsm->state)) {  in qcom_smsm_probe()
569 		dev_err(smsm->dev, "failed to register qcom_smem_state\n");  in qcom_smsm_probe()
570 		ret = PTR_ERR(smsm->state);  in qcom_smsm_probe()
580 		if (ret || id >= smsm->num_entries) {  in qcom_smsm_probe()
586 		entry = &smsm->entries[id];  in qcom_smsm_probe()
588 		entry->smsm = smsm;  in qcom_smsm_probe()
592 		entry->subscription = intr_mask + id * smsm->num_hosts;  in qcom_smsm_probe()
593 		writel(0, entry->subscription + smsm->local_host);  in qcom_smsm_probe()
595 		ret = smsm_inbound_entry(smsm, entry, node);  in qcom_smsm_probe()
600 	platform_set_drvdata(pdev, smsm);  in qcom_smsm_probe()
607 	for (id = 0; id < smsm->num_entries; id++)  in qcom_smsm_probe()
608 		if (smsm->entries[id].domain)  in qcom_smsm_probe()
609 			irq_domain_remove(smsm->entries[id].domain);  in qcom_smsm_probe()
611 	qcom_smem_state_unregister(smsm->state);  in qcom_smsm_probe()
619 	struct qcom_smsm *smsm = platform_get_drvdata(pdev);  in qcom_smsm_remove()  local
622 	for (id = 0; id < smsm->num_entries; id++)  in qcom_smsm_remove()
623 		if (smsm->entries[id].domain)  in qcom_smsm_remove()
624 			irq_domain_remove(smsm->entries[id].domain);  in qcom_smsm_remove()
626 	qcom_smem_state_unregister(smsm->state);  in qcom_smsm_remove()
632 	{ .compatible = "qcom,smsm" },
641 		.name  = "qcom-smsm",