76 	struct serdev_controller *ctrl = to_serdev_controller(dev);  in serdev_ctrl_release()  local
77 	ida_simple_remove(&ctrl_ida, ctrl->nr);  in serdev_ctrl_release()
78 	kfree(ctrl);  in serdev_ctrl_release()
103 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_add()  local
110 	if (ctrl->serdev) {  in serdev_device_add()
114 	ctrl->serdev = serdev;  in serdev_device_add()
128 	ctrl->serdev = NULL;  in serdev_device_add()
139 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_remove()  local
142 	ctrl->serdev = NULL;  in serdev_device_remove()
148 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_open()  local
151 	if (!ctrl || !ctrl->ops->open)  in serdev_device_open()
154 	ret = ctrl->ops->open(ctrl);  in serdev_device_open()
158 	ret = pm_runtime_get_sync(&ctrl->dev);  in serdev_device_open()
160 		pm_runtime_put_noidle(&ctrl->dev);  in serdev_device_open()
167 	if (ctrl->ops->close)  in serdev_device_open()
168 		ctrl->ops->close(ctrl);  in serdev_device_open()
176 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_close()  local
178 	if (!ctrl || !ctrl->ops->close)  in serdev_device_close()
181 	pm_runtime_put(&ctrl->dev);  in serdev_device_close()
183 	ctrl->ops->close(ctrl);  in serdev_device_close()
238 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_write_buf()  local
240 	if (!ctrl || !ctrl->ops->write_buf)  in serdev_device_write_buf()
243 	return ctrl->ops->write_buf(ctrl, buf, count);  in serdev_device_write_buf()
273 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_write()  local
277 	if (!ctrl || !ctrl->ops->write_buf || !serdev->ops->write_wakeup)  in serdev_device_write()
287 		ret = ctrl->ops->write_buf(ctrl, buf, count);  in serdev_device_write()
319 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_write_flush()  local
321 	if (!ctrl || !ctrl->ops->write_flush)  in serdev_device_write_flush()
324 	ctrl->ops->write_flush(ctrl);  in serdev_device_write_flush()
330 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_write_room()  local
332 	if (!ctrl || !ctrl->ops->write_room)  in serdev_device_write_room()
335 	return serdev->ctrl->ops->write_room(ctrl);  in serdev_device_write_room()
341 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_set_baudrate()  local
343 	if (!ctrl || !ctrl->ops->set_baudrate)  in serdev_device_set_baudrate()
346 	return ctrl->ops->set_baudrate(ctrl, speed);  in serdev_device_set_baudrate()
353 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_set_flow_control()  local
355 	if (!ctrl || !ctrl->ops->set_flow_control)  in serdev_device_set_flow_control()
358 	ctrl->ops->set_flow_control(ctrl, enable);  in serdev_device_set_flow_control()
365 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_set_parity()  local
367 	if (!ctrl || !ctrl->ops->set_parity)  in serdev_device_set_parity()
370 	return ctrl->ops->set_parity(ctrl, parity);  in serdev_device_set_parity()
376 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_wait_until_sent()  local
378 	if (!ctrl || !ctrl->ops->wait_until_sent)  in serdev_device_wait_until_sent()
381 	ctrl->ops->wait_until_sent(ctrl, timeout);  in serdev_device_wait_until_sent()
387 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_get_tiocm()  local
389 	if (!ctrl || !ctrl->ops->get_tiocm)  in serdev_device_get_tiocm()
392 	return ctrl->ops->get_tiocm(ctrl);  in serdev_device_get_tiocm()
398 	struct serdev_controller *ctrl = serdev->ctrl;  in serdev_device_set_tiocm()  local
400 	if (!ctrl || !ctrl->ops->set_tiocm)  in serdev_device_set_tiocm()
403 	return ctrl->ops->set_tiocm(ctrl, set, clear);  in serdev_device_set_tiocm()
448 struct serdev_device *serdev_device_alloc(struct serdev_controller *ctrl)  in serdev_device_alloc()  argument
456 	serdev->ctrl = ctrl;  in serdev_device_alloc()
458 	serdev->dev.parent = &ctrl->dev;  in serdev_device_alloc()
480 	struct serdev_controller *ctrl;  in serdev_controller_alloc()  local
486 	ctrl = kzalloc(sizeof(*ctrl) + size, GFP_KERNEL);  in serdev_controller_alloc()
487 	if (!ctrl)  in serdev_controller_alloc()
497 	ctrl->nr = id;  in serdev_controller_alloc()
499 	device_initialize(&ctrl->dev);  in serdev_controller_alloc()
500 	ctrl->dev.type = &serdev_ctrl_type;  in serdev_controller_alloc()
501 	ctrl->dev.bus = &serdev_bus_type;  in serdev_controller_alloc()
502 	ctrl->dev.parent = parent;  in serdev_controller_alloc()
503 	ctrl->dev.of_node = parent->of_node;  in serdev_controller_alloc()
504 	serdev_controller_set_drvdata(ctrl, &ctrl[1]);  in serdev_controller_alloc()
506 	dev_set_name(&ctrl->dev, "serial%d", id);  in serdev_controller_alloc()
508 	pm_runtime_no_callbacks(&ctrl->dev);  in serdev_controller_alloc()
509 	pm_suspend_ignore_children(&ctrl->dev, true);  in serdev_controller_alloc()
511 	dev_dbg(&ctrl->dev, "allocated controller 0x%p id %d\n", ctrl, id);  in serdev_controller_alloc()
512 	return ctrl;  in serdev_controller_alloc()
515 	kfree(ctrl);  in serdev_controller_alloc()
521 static int of_serdev_register_devices(struct serdev_controller *ctrl)  in of_serdev_register_devices()  argument
528 	for_each_available_child_of_node(ctrl->dev.of_node, node) {  in of_serdev_register_devices()
532 		dev_dbg(&ctrl->dev, "adding child %pOF\n", node);  in of_serdev_register_devices()
534 		serdev = serdev_device_alloc(ctrl);  in of_serdev_register_devices()
555 static acpi_status acpi_serdev_register_device(struct serdev_controller *ctrl,  in acpi_serdev_register_device()  argument
565 	serdev = serdev_device_alloc(ctrl);  in acpi_serdev_register_device()
567 		dev_err(&ctrl->dev, "failed to allocate serdev device for %s\n",  in acpi_serdev_register_device()
588 	struct serdev_controller *ctrl = data;  in acpi_serdev_add_device()  local
594 	return acpi_serdev_register_device(ctrl, adev);  in acpi_serdev_add_device()
597 static int acpi_serdev_register_devices(struct serdev_controller *ctrl)  in acpi_serdev_register_devices()  argument
602 	handle = ACPI_HANDLE(ctrl->dev.parent);  in acpi_serdev_register_devices()
607 				     acpi_serdev_add_device, NULL, ctrl, NULL);  in acpi_serdev_register_devices()
609 		dev_dbg(&ctrl->dev, "failed to enumerate serdev slaves\n");  in acpi_serdev_register_devices()
611 	if (!ctrl->serdev)  in acpi_serdev_register_devices()
617 static inline int acpi_serdev_register_devices(struct serdev_controller *ctrl)  in acpi_serdev_register_devices()  argument
630 int serdev_controller_add(struct serdev_controller *ctrl)  in serdev_controller_add()  argument
638 	ret = device_add(&ctrl->dev);  in serdev_controller_add()
642 	pm_runtime_enable(&ctrl->dev);  in serdev_controller_add()
644 	ret_of = of_serdev_register_devices(ctrl);  in serdev_controller_add()
645 	ret_acpi = acpi_serdev_register_devices(ctrl);  in serdev_controller_add()
647 		dev_dbg(&ctrl->dev, "no devices registered: of:%d acpi:%d\n",  in serdev_controller_add()
653 	dev_dbg(&ctrl->dev, "serdev%d registered: dev:%p\n",  in serdev_controller_add()
654 		ctrl->nr, &ctrl->dev);  in serdev_controller_add()
658 	pm_runtime_disable(&ctrl->dev);  in serdev_controller_add()
659 	device_del(&ctrl->dev);  in serdev_controller_add()
680 void serdev_controller_remove(struct serdev_controller *ctrl)  in serdev_controller_remove()  argument
684 	if (!ctrl)  in serdev_controller_remove()
687 	dummy = device_for_each_child(&ctrl->dev, NULL,  in serdev_controller_remove()
689 	pm_runtime_disable(&ctrl->dev);  in serdev_controller_remove()
690 	device_del(&ctrl->dev);  in serdev_controller_remove()