100 static struct smu_device	*smu;  variable
116 	if (list_empty(&smu->cmd_list))  in smu_start_cmd()
120 	cmd = list_entry(smu->cmd_list.next, struct smu_cmd, link);  in smu_start_cmd()
121 	smu->cmd_cur = cmd;  in smu_start_cmd()
129 	smu->cmd_buf->cmd = cmd->cmd;  in smu_start_cmd()
130 	smu->cmd_buf->length = cmd->data_len;  in smu_start_cmd()
131 	memcpy(smu->cmd_buf->data, cmd->data_buf, cmd->data_len);  in smu_start_cmd()
134 	faddr = (unsigned long)smu->cmd_buf;  in smu_start_cmd()
135 	fend = faddr + smu->cmd_buf->length + 2;  in smu_start_cmd()
148 	if (smu->broken_nap)  in smu_start_cmd()
155 	writel(smu->cmd_buf_abs, smu->db_buf);  in smu_start_cmd()
158 	pmac_do_feature_call(PMAC_FTR_WRITE_GPIO, NULL, smu->doorbell, 4);  in smu_start_cmd()
174 	spin_lock_irqsave(&smu->lock, flags);  in smu_db_intr()
176 	gpio = pmac_do_feature_call(PMAC_FTR_READ_GPIO, NULL, smu->doorbell);  in smu_db_intr()
178 		spin_unlock_irqrestore(&smu->lock, flags);  in smu_db_intr()
182 	cmd = smu->cmd_cur;  in smu_db_intr()
183 	smu->cmd_cur = NULL;  in smu_db_intr()
197 		faddr = (unsigned long)smu->cmd_buf;  in smu_db_intr()
202 		if (ack != smu->cmd_buf->cmd) {  in smu_db_intr()
204 				ack, smu->cmd_buf->cmd);  in smu_db_intr()
207 		reply_len = rc == 0 ? smu->cmd_buf->length : 0;  in smu_db_intr()
217 			memcpy(cmd->reply_buf, smu->cmd_buf->data, reply_len);  in smu_db_intr()
229 	if (smu->broken_nap)  in smu_db_intr()
234 	spin_unlock_irqrestore(&smu->lock, flags);  in smu_db_intr()
268 	if (smu == NULL)  in smu_queue_cmd()
275 	spin_lock_irqsave(&smu->lock, flags);  in smu_queue_cmd()
276 	list_add_tail(&cmd->link, &smu->cmd_list);  in smu_queue_cmd()
277 	if (smu->cmd_cur == NULL)  in smu_queue_cmd()
279 	spin_unlock_irqrestore(&smu->lock, flags);  in smu_queue_cmd()
282 	if (!smu_irq_inited || !smu->db_irq)  in smu_queue_cmd()
325 	if (smu == NULL)  in smu_poll()
328 	gpio = pmac_do_feature_call(PMAC_FTR_READ_GPIO, NULL, smu->doorbell);  in smu_poll()
330 		smu_db_intr(smu->db_irq, smu);  in smu_poll()
386 	if (smu == NULL)  in smu_get_rtc_time()
413 	if (smu == NULL)  in smu_set_rtc_time()
437 	if (smu == NULL)  in smu_shutdown()
453 	if (smu == NULL)  in smu_restart()
467 	return smu != NULL;  in smu_present()
495 	smu = memblock_alloc(sizeof(struct smu_device), SMP_CACHE_BYTES);  in smu_init()
496 	if (!smu)  in smu_init()
500 	spin_lock_init(&smu->lock);  in smu_init()
501 	INIT_LIST_HEAD(&smu->cmd_list);  in smu_init()
502 	INIT_LIST_HEAD(&smu->cmd_i2c_list);  in smu_init()
503 	smu->of_node = np;  in smu_init()
504 	smu->db_irq = 0;  in smu_init()
505 	smu->msg_irq = 0;  in smu_init()
510 	smu->cmd_buf_abs = (u32)smu_cmdbuf_abs;  in smu_init()
511 	smu->cmd_buf = __va(smu_cmdbuf_abs);  in smu_init()
513 	smu->db_node = of_find_node_by_name(NULL, "smu-doorbell");  in smu_init()
514 	if (smu->db_node == NULL) {  in smu_init()
519 	if (of_property_read_reg(smu->db_node, 0, &data, NULL)) {  in smu_init()
529 	smu->doorbell = data;  in smu_init()
530 	if (smu->doorbell < 0x50)  in smu_init()
531 		smu->doorbell += 0x50;  in smu_init()
535 		smu->msg_node = of_find_node_by_name(NULL, "smu-interrupt");  in smu_init()
536 		if (smu->msg_node == NULL)  in smu_init()
538 		if (of_property_read_reg(smu->msg_node, 0, &data, NULL)) {  in smu_init()
539 			of_node_put(smu->msg_node);  in smu_init()
540 			smu->msg_node = NULL;  in smu_init()
543 		smu->msg = data;  in smu_init()
544 		if (smu->msg < 0x50)  in smu_init()
545 			smu->msg += 0x50;  in smu_init()
552 	smu->db_buf = ioremap(0x8000860c, 0x1000);  in smu_init()
553 	if (smu->db_buf == NULL) {  in smu_init()
560 	smu->broken_nap = pmac_get_uninorth_variant() < 4;  in smu_init()
561 	if (smu->broken_nap)  in smu_init()
568 	of_node_put(smu->msg_node);  in smu_init()
570 	of_node_put(smu->db_node);  in smu_init()
572 	memblock_free(smu, sizeof(struct smu_device));  in smu_init()
573 	smu = NULL;  in smu_init()
582 	if (!smu)  in smu_late_init()
585 	timer_setup(&smu->i2c_timer, smu_i2c_retry, 0);  in smu_late_init()
587 	if (smu->db_node) {  in smu_late_init()
588 		smu->db_irq = irq_of_parse_and_map(smu->db_node, 0);  in smu_late_init()
589 		if (!smu->db_irq)  in smu_late_init()
591 			       smu->db_node);  in smu_late_init()
593 	if (smu->msg_node) {  in smu_late_init()
594 		smu->msg_irq = irq_of_parse_and_map(smu->msg_node, 0);  in smu_late_init()
595 		if (!smu->msg_irq)  in smu_late_init()
597 			       smu->msg_node);  in smu_late_init()
604 	if (smu->db_irq) {  in smu_late_init()
605 		if (request_irq(smu->db_irq, smu_db_intr,  in smu_late_init()
606 				IRQF_SHARED, "SMU doorbell", smu) < 0) {  in smu_late_init()
609 			       smu->db_irq);  in smu_late_init()
610 			smu->db_irq = 0;  in smu_late_init()
614 	if (smu->msg_irq) {  in smu_late_init()
615 		if (request_irq(smu->msg_irq, smu_msg_intr,  in smu_late_init()
616 				IRQF_SHARED, "SMU message", smu) < 0) {  in smu_late_init()
619 			       smu->msg_irq);  in smu_late_init()
620 			smu->msg_irq = 0;  in smu_late_init()
640 	for_each_child_of_node(smu->of_node, np)  in smu_expose_childs()
643 						  &smu->of_dev->dev);  in smu_expose_childs()
650 	if (!smu)  in smu_platform_probe()
652 	smu->of_dev = dev;  in smu_platform_probe()
695 	if (!smu)  in smu_get_ofdev()
697 	return smu->of_dev;  in smu_get_ofdev()
727 	spin_lock_irqsave(&smu->lock, flags);  in smu_i2c_complete_command()
728 	smu->cmd_i2c_cur = NULL;  in smu_i2c_complete_command()
733 	if (!list_empty(&smu->cmd_i2c_list)) {  in smu_i2c_complete_command()
737 		newcmd = list_entry(smu->cmd_i2c_list.next,  in smu_i2c_complete_command()
739 		smu->cmd_i2c_cur = newcmd;  in smu_i2c_complete_command()
743 		list_add_tail(&cmd->scmd.link, &smu->cmd_list);  in smu_i2c_complete_command()
744 		if (smu->cmd_cur == NULL)  in smu_i2c_complete_command()
747 	spin_unlock_irqrestore(&smu->lock, flags);  in smu_i2c_complete_command()
758 	struct smu_i2c_cmd	*cmd = smu->cmd_i2c_cur;  in smu_i2c_retry()
793 		BUG_ON(cmd != smu->cmd_i2c_cur);  in smu_i2c_low_completion()
799 		mod_timer(&smu->i2c_timer, jiffies + msecs_to_jiffies(5));  in smu_i2c_low_completion()
827 	if (smu == NULL)  in smu_queue_i2c()
887 	spin_lock_irqsave(&smu->lock, flags);  in smu_queue_i2c()
888 	if (smu->cmd_i2c_cur == NULL) {  in smu_queue_i2c()
889 		smu->cmd_i2c_cur = cmd;  in smu_queue_i2c()
890 		list_add_tail(&cmd->scmd.link, &smu->cmd_list);  in smu_queue_i2c()
891 		if (smu->cmd_cur == NULL)  in smu_queue_i2c()
894 		list_add_tail(&cmd->link, &smu->cmd_i2c_list);  in smu_queue_i2c()
895 	spin_unlock_irqrestore(&smu->lock, flags);  in smu_queue_i2c()
960 	DPRINTK("SMU: Query partition infos ... (irq=%d)\n", smu->db_irq);  in smu_create_sdb_partition()
1003 	if (of_add_property(smu->of_node, prop)) {  in smu_create_sdb_partition()
1024 	if (!smu)  in __smu_get_sdb_partition()
1039 	part = of_get_property(smu->of_node, pname, size);  in __smu_get_sdb_partition()
1331 	if (!smu)  in smu_device_init()