99 static struct smu_device	*smu;  variable
114 	if (list_empty(&smu->cmd_list))  in smu_start_cmd()
118 	cmd = list_entry(smu->cmd_list.next, struct smu_cmd, link);  in smu_start_cmd()
119 	smu->cmd_cur = cmd;  in smu_start_cmd()
127 	smu->cmd_buf->cmd = cmd->cmd;  in smu_start_cmd()
128 	smu->cmd_buf->length = cmd->data_len;  in smu_start_cmd()
129 	memcpy(smu->cmd_buf->data, cmd->data_buf, cmd->data_len);  in smu_start_cmd()
132 	faddr = (unsigned long)smu->cmd_buf;  in smu_start_cmd()
133 	fend = faddr + smu->cmd_buf->length + 2;  in smu_start_cmd()
146 	if (smu->broken_nap)  in smu_start_cmd()
153 	writel(smu->cmd_buf_abs, smu->db_buf);  in smu_start_cmd()
156 	pmac_do_feature_call(PMAC_FTR_WRITE_GPIO, NULL, smu->doorbell, 4);  in smu_start_cmd()
172 	spin_lock_irqsave(&smu->lock, flags);  in smu_db_intr()
174 	gpio = pmac_do_feature_call(PMAC_FTR_READ_GPIO, NULL, smu->doorbell);  in smu_db_intr()
176 		spin_unlock_irqrestore(&smu->lock, flags);  in smu_db_intr()
180 	cmd = smu->cmd_cur;  in smu_db_intr()
181 	smu->cmd_cur = NULL;  in smu_db_intr()
195 		faddr = (unsigned long)smu->cmd_buf;  in smu_db_intr()
200 		if (ack != smu->cmd_buf->cmd) {  in smu_db_intr()
202 				ack, smu->cmd_buf->cmd);  in smu_db_intr()
205 		reply_len = rc == 0 ? smu->cmd_buf->length : 0;  in smu_db_intr()
215 			memcpy(cmd->reply_buf, smu->cmd_buf->data, reply_len);  in smu_db_intr()
227 	if (smu->broken_nap)  in smu_db_intr()
232 	spin_unlock_irqrestore(&smu->lock, flags);  in smu_db_intr()
266 	if (smu == NULL)  in smu_queue_cmd()
273 	spin_lock_irqsave(&smu->lock, flags);  in smu_queue_cmd()
274 	list_add_tail(&cmd->link, &smu->cmd_list);  in smu_queue_cmd()
275 	if (smu->cmd_cur == NULL)  in smu_queue_cmd()
277 	spin_unlock_irqrestore(&smu->lock, flags);  in smu_queue_cmd()
280 	if (!smu_irq_inited || smu->db_irq == NO_IRQ)  in smu_queue_cmd()
323 	if (smu == NULL)  in smu_poll()
326 	gpio = pmac_do_feature_call(PMAC_FTR_READ_GPIO, NULL, smu->doorbell);  in smu_poll()
328 		smu_db_intr(smu->db_irq, smu);  in smu_poll()
384 	if (smu == NULL)  in smu_get_rtc_time()
411 	if (smu == NULL)  in smu_set_rtc_time()
435 	if (smu == NULL)  in smu_shutdown()
451 	if (smu == NULL)  in smu_restart()
465 	return smu != NULL;  in smu_present()
488 	smu = alloc_bootmem(sizeof(struct smu_device));  in smu_init()
490 	spin_lock_init(&smu->lock);  in smu_init()
491 	INIT_LIST_HEAD(&smu->cmd_list);  in smu_init()
492 	INIT_LIST_HEAD(&smu->cmd_i2c_list);  in smu_init()
493 	smu->of_node = np;  in smu_init()
494 	smu->db_irq = NO_IRQ;  in smu_init()
495 	smu->msg_irq = NO_IRQ;  in smu_init()
500 	smu->cmd_buf_abs = (u32)smu_cmdbuf_abs;  in smu_init()
501 	smu->cmd_buf = __va(smu_cmdbuf_abs);  in smu_init()
503 	smu->db_node = of_find_node_by_name(NULL, "smu-doorbell");  in smu_init()
504 	if (smu->db_node == NULL) {  in smu_init()
509 	data = of_get_property(smu->db_node, "reg", NULL);  in smu_init()
520 	smu->doorbell = *data;  in smu_init()
521 	if (smu->doorbell < 0x50)  in smu_init()
522 		smu->doorbell += 0x50;  in smu_init()
526 		smu->msg_node = of_find_node_by_name(NULL, "smu-interrupt");  in smu_init()
527 		if (smu->msg_node == NULL)  in smu_init()
529 		data = of_get_property(smu->msg_node, "reg", NULL);  in smu_init()
531 			of_node_put(smu->msg_node);  in smu_init()
532 			smu->msg_node = NULL;  in smu_init()
535 		smu->msg = *data;  in smu_init()
536 		if (smu->msg < 0x50)  in smu_init()
537 			smu->msg += 0x50;  in smu_init()
544 	smu->db_buf = ioremap(0x8000860c, 0x1000);  in smu_init()
545 	if (smu->db_buf == NULL) {  in smu_init()
552 	smu->broken_nap = pmac_get_uninorth_variant() < 4;  in smu_init()
553 	if (smu->broken_nap)  in smu_init()
560 	of_node_put(smu->msg_node);  in smu_init()
562 	of_node_put(smu->db_node);  in smu_init()
564 	free_bootmem(__pa(smu), sizeof(struct smu_device));  in smu_init()
565 	smu = NULL;  in smu_init()
574 	if (!smu)  in smu_late_init()
577 	init_timer(&smu->i2c_timer);  in smu_late_init()
578 	smu->i2c_timer.function = smu_i2c_retry;  in smu_late_init()
579 	smu->i2c_timer.data = (unsigned long)smu;  in smu_late_init()
581 	if (smu->db_node) {  in smu_late_init()
582 		smu->db_irq = irq_of_parse_and_map(smu->db_node, 0);  in smu_late_init()
583 		if (smu->db_irq == NO_IRQ)  in smu_late_init()
585 			       smu->db_node->full_name);  in smu_late_init()
587 	if (smu->msg_node) {  in smu_late_init()
588 		smu->msg_irq = irq_of_parse_and_map(smu->msg_node, 0);  in smu_late_init()
589 		if (smu->msg_irq == NO_IRQ)  in smu_late_init()
591 			       smu->msg_node->full_name);  in smu_late_init()
598 	if (smu->db_irq != NO_IRQ) {  in smu_late_init()
599 		if (request_irq(smu->db_irq, smu_db_intr,  in smu_late_init()
600 				IRQF_SHARED, "SMU doorbell", smu) < 0) {  in smu_late_init()
603 			       smu->db_irq);  in smu_late_init()
604 			smu->db_irq = NO_IRQ;  in smu_late_init()
608 	if (smu->msg_irq != NO_IRQ) {  in smu_late_init()
609 		if (request_irq(smu->msg_irq, smu_msg_intr,  in smu_late_init()
610 				IRQF_SHARED, "SMU message", smu) < 0) {  in smu_late_init()
613 			       smu->msg_irq);  in smu_late_init()
614 			smu->msg_irq = NO_IRQ;  in smu_late_init()
634 	for (np = NULL; (np = of_get_next_child(smu->of_node, np)) != NULL;)  in smu_expose_childs()
637 						  &smu->of_dev->dev);  in smu_expose_childs()
644 	if (!smu)  in smu_platform_probe()
646 	smu->of_dev = dev;  in smu_platform_probe()
689 	if (!smu)  in smu_get_ofdev()
691 	return smu->of_dev;  in smu_get_ofdev()
721 	spin_lock_irqsave(&smu->lock, flags);  in smu_i2c_complete_command()
722 	smu->cmd_i2c_cur = NULL;  in smu_i2c_complete_command()
727 	if (!list_empty(&smu->cmd_i2c_list)) {  in smu_i2c_complete_command()
731 		newcmd = list_entry(smu->cmd_i2c_list.next,  in smu_i2c_complete_command()
733 		smu->cmd_i2c_cur = newcmd;  in smu_i2c_complete_command()
737 		list_add_tail(&cmd->scmd.link, &smu->cmd_list);  in smu_i2c_complete_command()
738 		if (smu->cmd_cur == NULL)  in smu_i2c_complete_command()
741 	spin_unlock_irqrestore(&smu->lock, flags);  in smu_i2c_complete_command()
752 	struct smu_i2c_cmd	*cmd = smu->cmd_i2c_cur;  in smu_i2c_retry()
787 		BUG_ON(cmd != smu->cmd_i2c_cur);  in smu_i2c_low_completion()
793 		mod_timer(&smu->i2c_timer, jiffies + msecs_to_jiffies(5));  in smu_i2c_low_completion()
821 	if (smu == NULL)  in smu_queue_i2c()
879 	spin_lock_irqsave(&smu->lock, flags);  in smu_queue_i2c()
880 	if (smu->cmd_i2c_cur == NULL) {  in smu_queue_i2c()
881 		smu->cmd_i2c_cur = cmd;  in smu_queue_i2c()
882 		list_add_tail(&cmd->scmd.link, &smu->cmd_list);  in smu_queue_i2c()
883 		if (smu->cmd_cur == NULL)  in smu_queue_i2c()
886 		list_add_tail(&cmd->link, &smu->cmd_i2c_list);  in smu_queue_i2c()
887 	spin_unlock_irqrestore(&smu->lock, flags);  in smu_queue_i2c()
952 	DPRINTK("SMU: Query partition infos ... (irq=%d)\n", smu->db_irq);  in smu_create_sdb_partition()
995 	if (of_add_property(smu->of_node, prop)) {  in smu_create_sdb_partition()
1016 	if (!smu)  in __smu_get_sdb_partition()
1031 	part = of_get_property(smu->of_node, pname, size);  in __smu_get_sdb_partition()
1323 	if (!smu)  in smu_device_init()