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87 lines
2.4 KiB
87 lines
2.4 KiB
/* |
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* gpio-regulator.h |
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* |
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* Copyright 2011 Heiko Stuebner <heiko@sntech.de> |
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* |
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* based on fixed.h |
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* |
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* Copyright 2008 Wolfson Microelectronics PLC. |
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* |
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* Author: Mark Brown <broonie@opensource.wolfsonmicro.com> |
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* |
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* Copyright (c) 2009 Nokia Corporation |
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* Roger Quadros <ext-roger.quadros@nokia.com> |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of the |
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* License, or (at your option) any later version. |
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*/ |
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#ifndef __REGULATOR_GPIO_H |
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#define __REGULATOR_GPIO_H |
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struct regulator_init_data; |
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enum regulator_type; |
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/** |
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* struct gpio_regulator_state - state description |
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* @value: microvolts or microamps |
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* @gpios: bitfield of gpio target-states for the value |
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* |
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* This structure describes a supported setting of the regulator |
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* and the necessary gpio-state to achieve it. |
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* |
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* The n-th bit in the bitfield describes the state of the n-th GPIO |
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* from the gpios-array defined in gpio_regulator_config below. |
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*/ |
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struct gpio_regulator_state { |
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int value; |
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int gpios; |
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}; |
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/** |
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* struct gpio_regulator_config - config structure |
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* @supply_name: Name of the regulator supply |
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* @enable_gpio: GPIO to use for enable control |
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* set to -EINVAL if not used |
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* @enable_high: Polarity of enable GPIO |
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* 1 = Active high, 0 = Active low |
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* @enabled_at_boot: Whether regulator has been enabled at |
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* boot or not. 1 = Yes, 0 = No |
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* This is used to keep the regulator at |
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* the default state |
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* @startup_delay: Start-up time in microseconds |
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* @gpios: Array containing the gpios needed to control |
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* the setting of the regulator |
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* @nr_gpios: Number of gpios |
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* @states: Array of gpio_regulator_state entries describing |
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* the gpio state for specific voltages |
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* @nr_states: Number of states available |
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* @regulator_type: either REGULATOR_CURRENT or REGULATOR_VOLTAGE |
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* @init_data: regulator_init_data |
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* |
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* This structure contains gpio-voltage regulator configuration |
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* information that must be passed by platform code to the |
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* gpio-voltage regulator driver. |
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*/ |
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struct gpio_regulator_config { |
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const char *supply_name; |
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int enable_gpio; |
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unsigned enable_high:1; |
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unsigned enabled_at_boot:1; |
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unsigned startup_delay; |
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struct gpio *gpios; |
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int nr_gpios; |
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struct gpio_regulator_state *states; |
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int nr_states; |
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enum regulator_type type; |
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struct regulator_init_data *init_data; |
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}; |
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#endif
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