| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * A simple GPIO VBUS sensing driver for B peripheral only devices |
| * with internal transceivers. |
| * Optionally D+ pullup can be controlled by a second GPIO. |
| * |
| * Copyright (c) 2008 Philipp Zabel <philipp.zabel@gmail.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| */ |
| |
| /** |
| * struct gpio_vbus_mach_info - configuration for gpio_vbus |
| * @gpio_vbus: VBUS sensing GPIO |
| * @gpio_pullup: optional D+ or D- pullup GPIO (else negative/invalid) |
| * @gpio_vbus_inverted: true if gpio_vbus is active low |
| * @gpio_pullup_inverted: true if gpio_pullup is active low |
| * @wakeup: configure gpio_vbus as a wake-up source |
| * |
| * The VBUS sensing GPIO should have a pulldown, which will normally be |
| * part of a resistor ladder turning a 4.0V-5.25V level on VBUS into a |
| * value the GPIO detects as active. Some systems will use comparators. |
| */ |
| struct gpio_vbus_mach_info { |
| int gpio_vbus; |
| int gpio_pullup; |
| bool gpio_vbus_inverted; |
| bool gpio_pullup_inverted; |
| bool wakeup; |
| }; |
