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Diffstat (limited to 'include/linux/regulator/gpio-regulator.h')
-rw-r--r-- | include/linux/regulator/gpio-regulator.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/include/linux/regulator/gpio-regulator.h b/include/linux/regulator/gpio-regulator.h new file mode 100644 index 000000000..c223e50ff --- /dev/null +++ b/include/linux/regulator/gpio-regulator.h @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * 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> + */ + +#ifndef __REGULATOR_GPIO_H +#define __REGULATOR_GPIO_H + +#include <linux/gpio/consumer.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 + * @input_supply: Name of the input regulator supply + * @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 + * @gflags: Array of GPIO configuration flags for initial + * states + * @ngpios: Number of GPIOs and configurations available + * @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; + const char *input_supply; + + unsigned enabled_at_boot:1; + unsigned startup_delay; + + enum gpiod_flags *gflags; + int ngpios; + + struct gpio_regulator_state *states; + int nr_states; + + enum regulator_type type; + struct regulator_init_data *init_data; +}; + +#endif |