7cbb062ade
We'd like to see the system waking up from the system-wide suspend when it gets plugged-in, or the USB cable is pulled out. Also makes it configurable via platform data 'wakeup'. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
32 lines
1.1 KiB
C
32 lines
1.1 KiB
C
/*
|
|
* 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;
|
|
};
|