34 	struct regulator *vbus;  member
48  * "DEVICE" = VBUS and "HOST" = !ID, so we have:
51  * even if VBUS is on.
53  *  Role          |   ID  |  VBUS
61  * - VBUS only - we want to distinguish between [1] and [2], so ID is always 1
62  * - ID only - we want to distinguish between [1] and [4], so VBUS = ID
68 	int id, vbus, ret;  in usb_conn_detect_cable()  local
73 	/* check ID and VBUS */  in usb_conn_detect_cable()
76 	vbus = info->vbus_gpiod ?  in usb_conn_detect_cable()
81 	else if (vbus)  in usb_conn_detect_cable()
86 	dev_dbg(info->dev, "role %s -> %s, gpios: id %d, vbus %d\n",  in usb_conn_detect_cable()
87 		usb_role_string(info->last_role), usb_role_string(role), id, vbus);  in usb_conn_detect_cable()
94 	if (info->last_role == USB_ROLE_HOST && info->vbus)  in usb_conn_detect_cable()
95 		regulator_disable(info->vbus);  in usb_conn_detect_cable()
101 	if (role == USB_ROLE_HOST && info->vbus) {  in usb_conn_detect_cable()
102 		ret = regulator_enable(info->vbus);  in usb_conn_detect_cable()
104 			dev_err(info->dev, "enable vbus regulator failed\n");  in usb_conn_detect_cable()
109 	if (info->vbus)  in usb_conn_detect_cable()
110 		dev_dbg(info->dev, "vbus regulator is %s\n",  in usb_conn_detect_cable()
111 			regulator_is_enabled(info->vbus) ? "enabled" : "disabled");  in usb_conn_detect_cable()
190 	info->vbus_gpiod = devm_gpiod_get_optional(dev, "vbus", GPIOD_IN);  in usb_conn_probe()
209 	 * If the USB connector is a child of a USB port and that port already provides the VBUS  in usb_conn_probe()
213 		if (of_find_property(dev->parent->of_node, "vbus-supply", NULL))  in usb_conn_probe()
218 		info->vbus = devm_regulator_get_optional(dev, "vbus");  in usb_conn_probe()
219 		if (PTR_ERR(info->vbus) == -ENODEV)  in usb_conn_probe()
220 			info->vbus = NULL;  in usb_conn_probe()
222 		info->vbus = devm_regulator_get(dev, "vbus");  in usb_conn_probe()
225 	if (IS_ERR(info->vbus)) {  in usb_conn_probe()
226 		ret = PTR_ERR(info->vbus);  in usb_conn_probe()
227 		return dev_err_probe(dev, ret, "failed to get vbus :%d\n", ret);  in usb_conn_probe()
259 			dev_err(dev, "failed to get VBUS IRQ\n");  in usb_conn_probe()
268 			dev_err(dev, "failed to request VBUS IRQ\n");  in usb_conn_probe()
291 	if (info->last_role == USB_ROLE_HOST && info->vbus)  in usb_conn_remove()
292 		regulator_disable(info->vbus);  in usb_conn_remove()