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Diffstat (limited to 'kernel/include/linux/regulator/fixed.h')
| -rw-r--r-- | kernel/include/linux/regulator/fixed.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/kernel/include/linux/regulator/fixed.h b/kernel/include/linux/regulator/fixed.h new file mode 100644 index 000000000..48918be64 --- /dev/null +++ b/kernel/include/linux/regulator/fixed.h @@ -0,0 +1,76 @@ +/* + * 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_FIXED_H +#define __REGULATOR_FIXED_H + +struct regulator_init_data; + +/** + * struct fixed_voltage_config - fixed_voltage_config structure + * @supply_name: Name of the regulator supply + * @input_supply: Name of the input regulator supply + * @microvolts: Output voltage of regulator + * @gpio: GPIO to use for enable control + * set to -EINVAL if not used + * @startup_delay: Start-up time in microseconds + * @gpio_is_open_drain: Gpio pin is open drain or normal type. + * If it is open drain type then HIGH will be set + * through PULL-UP with setting gpio as input + * and low will be set as gpio-output with driven + * to low. For non-open-drain case, the gpio will + * will be in output and drive to low/high accordingly. + * @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 + * @init_data: regulator_init_data + * + * This structure contains fixed voltage regulator configuration + * information that must be passed by platform code to the fixed + * voltage regulator driver. + */ +struct fixed_voltage_config { + const char *supply_name; + const char *input_supply; + int microvolts; + int gpio; + unsigned startup_delay; + unsigned gpio_is_open_drain:1; + unsigned enable_high:1; + unsigned enabled_at_boot:1; + struct regulator_init_data *init_data; +}; + +struct regulator_consumer_supply; + +#if IS_ENABLED(CONFIG_REGULATOR) +struct platform_device *regulator_register_always_on(int id, const char *name, + struct regulator_consumer_supply *supplies, int num_supplies, int uv); +#else +static inline struct platform_device *regulator_register_always_on(int id, const char *name, + struct regulator_consumer_supply *supplies, int num_supplies, int uv) +{ + return NULL; +} +#endif + +#define regulator_register_fixed(id, s, ns) regulator_register_always_on(id, \ + "fixed-dummy", s, ns, 0) + +#endif |