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5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0 |
6084f1bf PZ |
2 | /* |
3 | * A simple GPIO VBUS sensing driver for B peripheral only devices | |
4 | * with internal transceivers. | |
5 | * Optionally D+ pullup can be controlled by a second GPIO. | |
6 | * | |
7 | * Copyright (c) 2008 Philipp Zabel <philipp.zabel@gmail.com> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | */ | |
14 | ||
15 | /** | |
16 | * struct gpio_vbus_mach_info - configuration for gpio_vbus | |
17 | * @gpio_vbus: VBUS sensing GPIO | |
18 | * @gpio_pullup: optional D+ or D- pullup GPIO (else negative/invalid) | |
19 | * @gpio_vbus_inverted: true if gpio_vbus is active low | |
20 | * @gpio_pullup_inverted: true if gpio_pullup is active low | |
7cbb062a | 21 | * @wakeup: configure gpio_vbus as a wake-up source |
6084f1bf PZ |
22 | * |
23 | * The VBUS sensing GPIO should have a pulldown, which will normally be | |
24 | * part of a resistor ladder turning a 4.0V-5.25V level on VBUS into a | |
25 | * value the GPIO detects as active. Some systems will use comparators. | |
26 | */ | |
27 | struct gpio_vbus_mach_info { | |
28 | int gpio_vbus; | |
29 | int gpio_pullup; | |
30 | bool gpio_vbus_inverted; | |
31 | bool gpio_pullup_inverted; | |
7cbb062a | 32 | bool wakeup; |
6084f1bf | 33 | }; |