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ce6f749605
The commit 2a9de9c0 ("extcon: Use the unique id for external connector instead
of string") defines the unique id of each external connector to identify the
type of external connector instead of string name. So, devm_extcon_dev_allocate()
should include the second parameter (unsigned int *supported_cable). This patch
adds the supported_cable parameter which is passed by platform data.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
61 lines
2.1 KiB
C
61 lines
2.1 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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* @extcon_id: The unique id of specific external connector.
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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_off if detached.
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* If NUll, default method of extcon class is used.
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* @check_on_resume: Boolean describing whether to check the state of gpio
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* while resuming from sleep.
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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 int extcon_id;
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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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