65 static int onboard_hub_power_on(struct onboard_hub *hub)  in onboard_hub_power_on()  argument
69 	err = regulator_bulk_enable(hub->pdata->num_supplies, hub->supplies);  in onboard_hub_power_on()
71 		dev_err(hub->dev, "failed to enable supplies: %d\n", err);  in onboard_hub_power_on()
75 	fsleep(hub->pdata->reset_us);  in onboard_hub_power_on()
76 	gpiod_set_value_cansleep(hub->reset_gpio, 0);  in onboard_hub_power_on()
78 	hub->is_powered_on = true;  in onboard_hub_power_on()
83 static int onboard_hub_power_off(struct onboard_hub *hub)  in onboard_hub_power_off()  argument
87 	gpiod_set_value_cansleep(hub->reset_gpio, 1);  in onboard_hub_power_off()
89 	err = regulator_bulk_disable(hub->pdata->num_supplies, hub->supplies);  in onboard_hub_power_off()
91 		dev_err(hub->dev, "failed to disable supplies: %d\n", err);  in onboard_hub_power_off()
95 	hub->is_powered_on = false;  in onboard_hub_power_off()
102 	struct onboard_hub *hub = dev_get_drvdata(dev);  in onboard_hub_suspend()  local
106 	if (hub->always_powered_in_suspend)  in onboard_hub_suspend()
109 	mutex_lock(&hub->lock);  in onboard_hub_suspend()
111 	list_for_each_entry(node, &hub->udev_list, list) {  in onboard_hub_suspend()
121 	mutex_unlock(&hub->lock);  in onboard_hub_suspend()
126 	return onboard_hub_power_off(hub);  in onboard_hub_suspend()
131 	struct onboard_hub *hub = dev_get_drvdata(dev);  in onboard_hub_resume()  local
133 	if (hub->is_powered_on)  in onboard_hub_resume()
136 	return onboard_hub_power_on(hub);  in onboard_hub_resume()
144 static int onboard_hub_add_usbdev(struct onboard_hub *hub, struct usb_device *udev)  in onboard_hub_add_usbdev()  argument
150 	mutex_lock(&hub->lock);  in onboard_hub_add_usbdev()
152 	if (hub->going_away) {  in onboard_hub_add_usbdev()
165 	list_add(&node->list, &hub->udev_list);  in onboard_hub_add_usbdev()
167 	mutex_unlock(&hub->lock);  in onboard_hub_add_usbdev()
170 	WARN_ON(sysfs_create_link(&hub->dev->kobj, &udev->dev.kobj, link_name));  in onboard_hub_add_usbdev()
175 	mutex_unlock(&hub->lock);  in onboard_hub_add_usbdev()
180 static void onboard_hub_remove_usbdev(struct onboard_hub *hub, const struct usb_device *udev)  in onboard_hub_remove_usbdev()  argument
186 	sysfs_remove_link(&hub->dev->kobj, link_name);  in onboard_hub_remove_usbdev()
188 	mutex_lock(&hub->lock);  in onboard_hub_remove_usbdev()
190 	list_for_each_entry(node, &hub->udev_list, list) {  in onboard_hub_remove_usbdev()
198 	mutex_unlock(&hub->lock);  in onboard_hub_remove_usbdev()
204 	const struct onboard_hub *hub = dev_get_drvdata(dev);  in always_powered_in_suspend_show()  local
206 	return sysfs_emit(buf, "%d\n", hub->always_powered_in_suspend);  in always_powered_in_suspend_show()
212 	struct onboard_hub *hub = dev_get_drvdata(dev);  in always_powered_in_suspend_store()  local
220 	hub->always_powered_in_suspend = val;  in always_powered_in_suspend_store()
245 	struct onboard_hub *hub;  in onboard_hub_probe()  local
249 	hub = devm_kzalloc(dev, sizeof(*hub), GFP_KERNEL);  in onboard_hub_probe()
250 	if (!hub)  in onboard_hub_probe()
257 	hub->pdata = of_id->data;  in onboard_hub_probe()
258 	if (!hub->pdata)  in onboard_hub_probe()
261 	if (hub->pdata->num_supplies > MAX_SUPPLIES)  in onboard_hub_probe()
265 	for (i = 0; i < hub->pdata->num_supplies; i++)  in onboard_hub_probe()
266 		hub->supplies[i].supply = supply_names[i];  in onboard_hub_probe()
268 	err = devm_regulator_bulk_get(dev, hub->pdata->num_supplies, hub->supplies);  in onboard_hub_probe()
274 	hub->reset_gpio = devm_gpiod_get_optional(dev, "reset",  in onboard_hub_probe()
276 	if (IS_ERR(hub->reset_gpio))  in onboard_hub_probe()
277 		return dev_err_probe(dev, PTR_ERR(hub->reset_gpio), "failed to get reset GPIO\n");  in onboard_hub_probe()
279 	hub->dev = dev;  in onboard_hub_probe()
280 	mutex_init(&hub->lock);  in onboard_hub_probe()
281 	INIT_LIST_HEAD(&hub->udev_list);  in onboard_hub_probe()
283 	dev_set_drvdata(dev, hub);  in onboard_hub_probe()
285 	err = onboard_hub_power_on(hub);  in onboard_hub_probe()
304 	struct onboard_hub *hub = dev_get_drvdata(&pdev->dev);  in onboard_hub_remove()  local
308 	hub->going_away = true;  in onboard_hub_remove()
310 	mutex_lock(&hub->lock);  in onboard_hub_remove()
313 	while (!list_empty(&hub->udev_list)) {  in onboard_hub_remove()
314 		node = list_first_entry(&hub->udev_list, struct usbdev_node, list);  in onboard_hub_remove()
322 		mutex_unlock(&hub->lock);  in onboard_hub_remove()
325 		mutex_lock(&hub->lock);  in onboard_hub_remove()
328 	mutex_unlock(&hub->lock);  in onboard_hub_remove()
330 	onboard_hub_power_off(hub);  in onboard_hub_remove()
368 	struct onboard_hub *hub;  in _find_onboard_hub()  local
385 	hub = dev_get_drvdata(&pdev->dev);  in _find_onboard_hub()
395 	if (!hub)  in _find_onboard_hub()
398 	return hub;  in _find_onboard_hub()
404 	struct onboard_hub *hub;  in onboard_hub_usbdev_probe()  local
411 	hub = _find_onboard_hub(dev);  in onboard_hub_usbdev_probe()
412 	if (IS_ERR(hub))  in onboard_hub_usbdev_probe()
413 		return PTR_ERR(hub);  in onboard_hub_usbdev_probe()
415 	dev_set_drvdata(dev, hub);  in onboard_hub_usbdev_probe()
417 	err = onboard_hub_add_usbdev(hub, udev);  in onboard_hub_usbdev_probe()
426 	struct onboard_hub *hub = dev_get_drvdata(&udev->dev);  in onboard_hub_usbdev_disconnect()  local
428 	onboard_hub_remove_usbdev(hub, udev);  in onboard_hub_usbdev_disconnect()