e209c5a7ed
Add a gpio setup function which gives a chance to set up platform specific configuration such as pin multiplexing, input/output direction at the runtime or booting time. Signed-off-by: Sangwook Lee <sangwook.lee@linaro.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/*
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* Copyright (c) 2011, NVIDIA Corporation.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __RFKILL_GPIO_H
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#define __RFKILL_GPIO_H
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#include <linux/types.h>
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#include <linux/rfkill.h>
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/**
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* struct rfkill_gpio_platform_data - platform data for rfkill gpio device.
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* for unused gpio's, the expected value is -1.
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* @name: name for the gpio rf kill instance
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* @reset_gpio: GPIO which is used for reseting rfkill switch
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* @shutdown_gpio: GPIO which is used for shutdown of rfkill switch
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* @power_clk_name: [optional] name of clk to turn off while blocked
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* @gpio_runtime_close: clean up platform specific gpio configuration
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* @gpio_runtime_setup: set up platform specific gpio configuration
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*/
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struct rfkill_gpio_platform_data {
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char *name;
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int reset_gpio;
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int shutdown_gpio;
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const char *power_clk_name;
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enum rfkill_type type;
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void (*gpio_runtime_close)(struct platform_device *);
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int (*gpio_runtime_setup)(struct platform_device *);
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};
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#endif /* __RFKILL_GPIO_H */
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