38 	struct regulator *vbus;  member
53  * "DEVICE" = VBUS and "HOST" = !ID, so we have:
56  * even if VBUS is on.
58  *  Role          |   ID  |  VBUS
66  * - VBUS only - we want to distinguish between [1] and [2], so ID is always 1
67  * - ID only - we want to distinguish between [1] and [4], so VBUS = ID
73 	int id, vbus, ret;  in usb_conn_detect_cable()  local
78 	/* check ID and VBUS */  in usb_conn_detect_cable()
81 	vbus = info->vbus_gpiod ?  in usb_conn_detect_cable()
86 	else if (vbus)  in usb_conn_detect_cable()
91 	dev_dbg(info->dev, "role %s -> %s, gpios: id %d, vbus %d\n",  in usb_conn_detect_cable()
92 		usb_role_string(info->last_role), usb_role_string(role), id, vbus);  in usb_conn_detect_cable()
101 	if (info->last_role == USB_ROLE_HOST && info->vbus)  in usb_conn_detect_cable()
102 		regulator_disable(info->vbus);  in usb_conn_detect_cable()
108 	if (role == USB_ROLE_HOST && info->vbus) {  in usb_conn_detect_cable()
109 		ret = regulator_enable(info->vbus);  in usb_conn_detect_cable()
111 			dev_err(info->dev, "enable vbus regulator failed\n");  in usb_conn_detect_cable()
116 	if (info->vbus)  in usb_conn_detect_cable()
117 		dev_dbg(info->dev, "vbus regulator is %s\n",  in usb_conn_detect_cable()
118 			regulator_is_enabled(info->vbus) ? "enabled" : "disabled");  in usb_conn_detect_cable()
208 	info->vbus_gpiod = devm_gpiod_get_optional(dev, "vbus", GPIOD_IN);  in usb_conn_probe()
226 	info->vbus = devm_regulator_get_optional(dev, "vbus");  in usb_conn_probe()
227 	if (PTR_ERR(info->vbus) == -ENODEV)  in usb_conn_probe()
228 		info->vbus = NULL;  in usb_conn_probe()
230 	if (IS_ERR(info->vbus))  in usb_conn_probe()
231 		return dev_err_probe(dev, PTR_ERR(info->vbus), "failed to get vbus\n");  in usb_conn_probe()
262 			dev_err(dev, "failed to get VBUS IRQ\n");  in usb_conn_probe()
271 			dev_err(dev, "failed to request VBUS IRQ\n");  in usb_conn_probe()
299 	if (info->last_role == USB_ROLE_HOST && info->vbus)  in usb_conn_remove()
300 		regulator_disable(info->vbus);  in usb_conn_remove()