53 static struct pmi_data *data;  variable
60 	spin_lock(&data->pmi_spinlock);  in pmi_irq_handler()
62 	type = ioread8(data->pmi_reg + PMI_READ_TYPE);  in pmi_irq_handler()
65 	if (type & PMI_ACK && !data->completion) {  in pmi_irq_handler()
71 	if (data->completion && !(type & PMI_ACK)) {  in pmi_irq_handler()
77 	data->msg.type = type;  in pmi_irq_handler()
78 	data->msg.data0 = ioread8(data->pmi_reg + PMI_READ_DATA0);  in pmi_irq_handler()
79 	data->msg.data1 = ioread8(data->pmi_reg + PMI_READ_DATA1);  in pmi_irq_handler()
80 	data->msg.data2 = ioread8(data->pmi_reg + PMI_READ_DATA2);  in pmi_irq_handler()
83 	spin_unlock(&data->pmi_spinlock);  in pmi_irq_handler()
90 	if (data->msg.type & PMI_ACK) {  in pmi_irq_handler()
91 		complete(data->completion);  in pmi_irq_handler()
96 	schedule_work(&data->work);  in pmi_irq_handler()
116 	spin_lock(&data->handler_spinlock);  in pmi_notify_handlers()
117 	list_for_each_entry(handler, &data->handler, node) {  in pmi_notify_handlers()
119 		if (handler->type == data->msg.type)  in pmi_notify_handlers()
120 			handler->handle_pmi_message(data->msg);  in pmi_notify_handlers()
122 	spin_unlock(&data->handler_spinlock);  in pmi_notify_handlers()
130 	if (data) {  in pmi_of_probe()
136 	data = kzalloc(sizeof(struct pmi_data), GFP_KERNEL);  in pmi_of_probe()
137 	if (!data) {  in pmi_of_probe()
143 	data->pmi_reg = of_iomap(np, 0);  in pmi_of_probe()
144 	if (!data->pmi_reg) {  in pmi_of_probe()
150 	INIT_LIST_HEAD(&data->handler);  in pmi_of_probe()
152 	mutex_init(&data->msg_mutex);  in pmi_of_probe()
153 	spin_lock_init(&data->pmi_spinlock);  in pmi_of_probe()
154 	spin_lock_init(&data->handler_spinlock);  in pmi_of_probe()
156 	INIT_WORK(&data->work, pmi_notify_handlers);  in pmi_of_probe()
158 	data->dev = dev;  in pmi_of_probe()
160 	data->irq = irq_of_parse_and_map(np, 0);  in pmi_of_probe()
161 	if (data->irq == NO_IRQ) {  in pmi_of_probe()
167 	rc = request_irq(data->irq, pmi_irq_handler, 0, "pmi", NULL);  in pmi_of_probe()
170 				data->irq, rc);  in pmi_of_probe()
174 	printk(KERN_INFO "pmi: found pmi device at addr %p.\n", data->pmi_reg);  in pmi_of_probe()
179 	iounmap(data->pmi_reg);  in pmi_of_probe()
182 	kfree(data);  in pmi_of_probe()
192 	free_irq(data->irq, NULL);  in pmi_of_remove()
193 	iounmap(data->pmi_reg);  in pmi_of_remove()
195 	spin_lock(&data->handler_spinlock);  in pmi_of_remove()
197 	list_for_each_entry_safe(handler, tmp, &data->handler, node)  in pmi_of_remove()
200 	spin_unlock(&data->handler_spinlock);  in pmi_of_remove()
202 	kfree(data);  in pmi_of_remove()
203 	data = NULL;  in pmi_of_remove()
235 	if (!data)  in pmi_send_message()
238 	mutex_lock(&data->msg_mutex);  in pmi_send_message()
240 	data->msg = msg;  in pmi_send_message()
243 	data->completion = &completion;  in pmi_send_message()
245 	spin_lock_irqsave(&data->pmi_spinlock, flags);  in pmi_send_message()
246 	iowrite8(msg.data0, data->pmi_reg + PMI_WRITE_DATA0);  in pmi_send_message()
247 	iowrite8(msg.data1, data->pmi_reg + PMI_WRITE_DATA1);  in pmi_send_message()
248 	iowrite8(msg.data2, data->pmi_reg + PMI_WRITE_DATA2);  in pmi_send_message()
249 	iowrite8(msg.type, data->pmi_reg + PMI_WRITE_TYPE);  in pmi_send_message()
250 	spin_unlock_irqrestore(&data->pmi_spinlock, flags);  in pmi_send_message()
254 	wait_for_completion_interruptible_timeout(data->completion,  in pmi_send_message()
257 	data->completion = NULL;  in pmi_send_message()
259 	mutex_unlock(&data->msg_mutex);  in pmi_send_message()
267 	if (!data)  in pmi_register_handler()
270 	spin_lock(&data->handler_spinlock);  in pmi_register_handler()
271 	list_add_tail(&handler->node, &data->handler);  in pmi_register_handler()
272 	spin_unlock(&data->handler_spinlock);  in pmi_register_handler()
280 	if (!data)  in pmi_unregister_handler()
285 	spin_lock(&data->handler_spinlock);  in pmi_unregister_handler()
287 	spin_unlock(&data->handler_spinlock);  in pmi_unregister_handler()