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6544dfa579
When system on the suspend state, Some SoC can't get gpio interrupt. After system resume, need send extcon uevent to userspace. Signed-off-by: Rongjun Ying <rongjun.ying@csr.com> Reviewed-by: Barry Song <Baohua.Song@csr.com> Acked-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/*
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* External connector (extcon) class generic GPIO driver
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*
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* Copyright (C) 2012 Samsung Electronics
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* Author: MyungJoo Ham <myungjoo.ham@samsung.com>
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*
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* based on switch class driver
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* Copyright (C) 2008 Google, Inc.
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* Author: Mike Lockwood <lockwood@android.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __EXTCON_GPIO_H__
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#define __EXTCON_GPIO_H__ __FILE__
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#include <linux/extcon.h>
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/**
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* struct gpio_extcon_platform_data - A simple GPIO-controlled extcon device.
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* @name: The name of this GPIO extcon device.
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* @gpio: Corresponding GPIO.
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* @gpio_active_low: Boolean describing whether gpio active state is 1 or 0
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* If true, low state of gpio means active.
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* If false, high state of gpio means active.
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* @debounce: Debounce time for GPIO IRQ in ms.
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* @irq_flags: IRQ Flags (e.g., IRQF_TRIGGER_LOW).
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* @state_on: print_state is overriden with state_on if attached.
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* If NULL, default method of extcon class is used.
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* @state_off: print_state is overriden with state_on if detached.
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* If NUll, default method of extcon class is used.
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*
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* Note that in order for state_on or state_off to be valid, both state_on
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* and state_off should be not NULL. If at least one of them is NULL,
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* the print_state is not overriden.
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*/
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struct gpio_extcon_platform_data {
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const char *name;
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unsigned gpio;
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bool gpio_active_low;
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unsigned long debounce;
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unsigned long irq_flags;
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/* if NULL, "0" or "1" will be printed */
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const char *state_on;
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const char *state_off;
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bool check_on_resume;
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};
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#endif /* __EXTCON_GPIO_H__ */
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