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