diff options
Diffstat (limited to 'include/linux/regulator')
| -rw-r--r-- | include/linux/regulator/consumer.h | 21 | ||||
| -rw-r--r-- | include/linux/regulator/driver.h | 48 | ||||
| -rw-r--r-- | include/linux/regulator/fan53555.h | 60 | ||||
| -rw-r--r-- | include/linux/regulator/fixed.h | 13 | ||||
| -rw-r--r-- | include/linux/regulator/lp872x.h | 90 | ||||
| -rw-r--r-- | include/linux/regulator/machine.h | 5 |
6 files changed, 232 insertions, 5 deletions
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index 4ed1b30ac5fc..c43cd3556b1f 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -177,6 +177,8 @@ int regulator_set_mode(struct regulator *regulator, unsigned int mode); unsigned int regulator_get_mode(struct regulator *regulator); int regulator_set_optimum_mode(struct regulator *regulator, int load_uA); +int regulator_allow_bypass(struct regulator *regulator, bool allow); + /* regulator notifier block */ int regulator_register_notifier(struct regulator *regulator, struct notifier_block *nb); @@ -291,6 +293,12 @@ static inline int regulator_set_voltage(struct regulator *regulator, static inline int regulator_get_voltage(struct regulator *regulator) { + return -EINVAL; +} + +static inline int regulator_is_supported_voltage(struct regulator *regulator, + int min_uV, int max_uV) +{ return 0; } @@ -322,6 +330,12 @@ static inline int regulator_set_optimum_mode(struct regulator *regulator, return REGULATOR_MODE_NORMAL; } +static inline int regulator_allow_bypass(struct regulator *regulator, + bool allow) +{ + return 0; +} + static inline int regulator_register_notifier(struct regulator *regulator, struct notifier_block *nb) { @@ -346,4 +360,11 @@ static inline void regulator_set_drvdata(struct regulator *regulator, #endif +static inline int regulator_set_voltage_tol(struct regulator *regulator, + int new_uV, int tol_uV) +{ + return regulator_set_voltage(regulator, + new_uV - tol_uV, new_uV + tol_uV); +} + #endif diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index b0432cc2b169..7932a3bf21bd 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -32,6 +32,10 @@ enum regulator_status { REGULATOR_STATUS_NORMAL, REGULATOR_STATUS_IDLE, REGULATOR_STATUS_STANDBY, + /* The regulator is enabled but not regulating */ + REGULATOR_STATUS_BYPASS, + /* in case that any other status doesn't apply */ + REGULATOR_STATUS_UNDEFINED, }; /** @@ -56,6 +60,7 @@ enum regulator_status { * regulator_desc.n_voltages. Voltages may be reported in any order. * * @set_current_limit: Configure a limit for a current-limited regulator. + * The driver should select the current closest to max_uA. * @get_current_limit: Get the configured limit for a current-limited regulator. * * @set_mode: Set the configured operating mode for the regulator. @@ -65,8 +70,13 @@ enum regulator_status { * @get_optimum_mode: Get the most efficient operating mode for the regulator * when running with the specified parameters. * + * @set_bypass: Set the regulator in bypass mode. + * @get_bypass: Get the regulator bypass mode state. + * * @enable_time: Time taken for the regulator voltage output voltage to * stabilise after being enabled, in microseconds. + * @set_ramp_delay: Set the ramp delay for the regulator. The driver should + * select ramp delay equal to or less than(closest) ramp_delay. * @set_voltage_time_sel: Time taken for the regulator voltage output voltage * to stabilise after being set to a new value, in microseconds. * The function provides the from and to voltage selector, the @@ -113,6 +123,7 @@ struct regulator_ops { /* Time taken to enable or set voltage on the regulator */ int (*enable_time) (struct regulator_dev *); + int (*set_ramp_delay) (struct regulator_dev *, int ramp_delay); int (*set_voltage_time_sel) (struct regulator_dev *, unsigned int old_selector, unsigned int new_selector); @@ -128,6 +139,10 @@ struct regulator_ops { unsigned int (*get_optimum_mode) (struct regulator_dev *, int input_uV, int output_uV, int load_uA); + /* control and report on bypass mode */ + int (*set_bypass)(struct regulator_dev *dev, bool enable); + int (*get_bypass)(struct regulator_dev *dev, bool *enable); + /* the operations below are for configuration of regulator state when * its parent PMIC enters a global STANDBY/HIBERNATE state */ @@ -170,11 +185,15 @@ enum regulator_type { * * @min_uV: Voltage given by the lowest selector (if linear mapping) * @uV_step: Voltage increase with each selector (if linear mapping) + * @ramp_delay: Time to settle down after voltage change (unit: uV/us) + * @volt_table: Voltage mapping table (if table based mapping) * * @vsel_reg: Register for selector when using regulator_regmap_X_voltage_ * @vsel_mask: Mask for register bitfield used for selector * @enable_reg: Register for control when using regmap enable/disable ops * @enable_mask: Mask for control when using regmap enable/disable ops + * + * @enable_time: Time taken for initial enable of regulator (in uS). */ struct regulator_desc { const char *name; @@ -188,11 +207,18 @@ struct regulator_desc { unsigned int min_uV; unsigned int uV_step; + unsigned int ramp_delay; + + const unsigned int *volt_table; unsigned int vsel_reg; unsigned int vsel_mask; unsigned int enable_reg; unsigned int enable_mask; + unsigned int bypass_reg; + unsigned int bypass_mask; + + unsigned int enable_time; }; /** @@ -207,7 +233,11 @@ struct regulator_desc { * @driver_data: private regulator data * @of_node: OpenFirmware node to parse for device tree bindings (may be * NULL). - * @regmap: regmap to use for core regmap helpers + * @regmap: regmap to use for core regmap helpers if dev_get_regulator() is + * insufficient. + * @ena_gpio: GPIO controlling regulator enable. + * @ena_gpio_invert: Sense for GPIO enable control. + * @ena_gpio_flags: Flags to use when calling gpio_request_one() */ struct regulator_config { struct device *dev; @@ -215,6 +245,10 @@ struct regulator_config { void *driver_data; struct device_node *of_node; struct regmap *regmap; + + int ena_gpio; + unsigned int ena_gpio_invert:1; + unsigned int ena_gpio_flags; }; /* @@ -232,6 +266,7 @@ struct regulator_dev { int exclusive; u32 use_count; u32 open_count; + u32 bypass_count; /* lists we belong to */ struct list_head list; /* list of all regulators */ @@ -253,6 +288,10 @@ struct regulator_dev { void *reg_data; /* regulator_dev data */ struct dentry *debugfs; + + int ena_gpio; + unsigned int ena_gpio_invert:1; + unsigned int ena_gpio_state:1; }; struct regulator_dev * @@ -271,6 +310,8 @@ int regulator_mode_to_status(unsigned int); int regulator_list_voltage_linear(struct regulator_dev *rdev, unsigned int selector); +int regulator_list_voltage_table(struct regulator_dev *rdev, + unsigned int selector); int regulator_map_voltage_linear(struct regulator_dev *rdev, int min_uV, int max_uV); int regulator_map_voltage_iterate(struct regulator_dev *rdev, @@ -280,6 +321,11 @@ int regulator_set_voltage_sel_regmap(struct regulator_dev *rdev, unsigned sel); int regulator_is_enabled_regmap(struct regulator_dev *rdev); int regulator_enable_regmap(struct regulator_dev *rdev); int regulator_disable_regmap(struct regulator_dev *rdev); +int regulator_set_voltage_time_sel(struct regulator_dev *rdev, + unsigned int old_selector, + unsigned int new_selector); +int regulator_set_bypass_regmap(struct regulator_dev *rdev, bool enable); +int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable); void *regulator_get_init_drvdata(struct regulator_init_data *reg_init_data); diff --git a/include/linux/regulator/fan53555.h b/include/linux/regulator/fan53555.h new file mode 100644 index 000000000000..5c45c85d52ca --- /dev/null +++ b/include/linux/regulator/fan53555.h @@ -0,0 +1,60 @@ +/* + * fan53555.h - Fairchild Regulator FAN53555 Driver + * + * Copyright (C) 2012 Marvell Technology Ltd. + * Yunfan Zhang <yfzhang@marvell.com> + * + * This package is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef __FAN53555_H__ + +/* VSEL ID */ +enum { + FAN53555_VSEL_ID_0 = 0, + FAN53555_VSEL_ID_1, +}; + +/* Transition slew rate limiting from a low to high voltage. + * ----------------------- + * Bin |Slew Rate(mV/uS) + * ------|---------------- + * 000 | 64.00 + * ------|---------------- + * 001 | 32.00 + * ------|---------------- + * 010 | 16.00 + * ------|---------------- + * 011 | 8.00 + * ------|---------------- + * 100 | 4.00 + * ------|---------------- + * 101 | 2.00 + * ------|---------------- + * 110 | 1.00 + * ------|---------------- + * 111 | 0.50 + * ----------------------- + */ +enum { + FAN53555_SLEW_RATE_64MV = 0, + FAN53555_SLEW_RATE_32MV, + FAN53555_SLEW_RATE_16MV, + FAN53555_SLEW_RATE_8MV, + FAN53555_SLEW_RATE_4MV, + FAN53555_SLEW_RATE_2MV, + FAN53555_SLEW_RATE_1MV, + FAN53555_SLEW_RATE_0_5MV, +}; + +struct fan53555_platform_data { + struct regulator_init_data *regulator; + unsigned int slew_rate; + /* Sleep VSEL ID */ + unsigned int sleep_vsel_id; +}; + +#endif /* __FAN53555_H__ */ diff --git a/include/linux/regulator/fixed.h b/include/linux/regulator/fixed.h index f83f7440b488..48918be649d4 100644 --- a/include/linux/regulator/fixed.h +++ b/include/linux/regulator/fixed.h @@ -22,6 +22,7 @@ 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 @@ -46,6 +47,7 @@ struct regulator_init_data; */ struct fixed_voltage_config { const char *supply_name; + const char *input_supply; int microvolts; int gpio; unsigned startup_delay; @@ -58,14 +60,17 @@ struct fixed_voltage_config { struct regulator_consumer_supply; #if IS_ENABLED(CONFIG_REGULATOR) -struct platform_device *regulator_register_fixed(int id, - struct regulator_consumer_supply *supplies, int num_supplies); +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_fixed(int id, - struct regulator_consumer_supply *supplies, int num_supplies) +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 diff --git a/include/linux/regulator/lp872x.h b/include/linux/regulator/lp872x.h new file mode 100644 index 000000000000..132e05c46661 --- /dev/null +++ b/include/linux/regulator/lp872x.h @@ -0,0 +1,90 @@ +/* + * Copyright 2012 Texas Instruments + * + * Author: Milo(Woogyom) Kim <milo.kim@ti.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef __LP872X_REGULATOR_H__ +#define __LP872X_REGULATOR_H__ + +#include <linux/regulator/machine.h> +#include <linux/platform_device.h> +#include <linux/gpio.h> + +#define LP872X_MAX_REGULATORS 9 + +enum lp872x_regulator_id { + LP8720_ID_BASE, + LP8720_ID_LDO1 = LP8720_ID_BASE, + LP8720_ID_LDO2, + LP8720_ID_LDO3, + LP8720_ID_LDO4, + LP8720_ID_LDO5, + LP8720_ID_BUCK, + + LP8725_ID_BASE, + LP8725_ID_LDO1 = LP8725_ID_BASE, + LP8725_ID_LDO2, + LP8725_ID_LDO3, + LP8725_ID_LDO4, + LP8725_ID_LDO5, + LP8725_ID_LILO1, + LP8725_ID_LILO2, + LP8725_ID_BUCK1, + LP8725_ID_BUCK2, + + LP872X_ID_MAX, +}; + +enum lp872x_dvs_state { + DVS_LOW = GPIOF_OUT_INIT_LOW, + DVS_HIGH = GPIOF_OUT_INIT_HIGH, +}; + +enum lp872x_dvs_sel { + SEL_V1, + SEL_V2, +}; + +/** + * lp872x_dvs + * @gpio : gpio pin number for dvs control + * @vsel : dvs selector for buck v1 or buck v2 register + * @init_state : initial dvs pin state + */ +struct lp872x_dvs { + int gpio; + enum lp872x_dvs_sel vsel; + enum lp872x_dvs_state init_state; +}; + +/** + * lp872x_regdata + * @id : regulator id + * @init_data : init data for each regulator + */ +struct lp872x_regulator_data { + enum lp872x_regulator_id id; + struct regulator_init_data *init_data; +}; + +/** + * lp872x_platform_data + * @general_config : the value of LP872X_GENERAL_CFG register + * @update_config : if LP872X_GENERAL_CFG register is updated, set true + * @regulator_data : platform regulator id and init data + * @dvs : dvs data for buck voltage control + */ +struct lp872x_platform_data { + u8 general_config; + bool update_config; + struct lp872x_regulator_data regulator_data[LP872X_MAX_REGULATORS]; + struct lp872x_dvs *dvs; +}; + +#endif diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h index b02108446be7..36adbc82de6a 100644 --- a/include/linux/regulator/machine.h +++ b/include/linux/regulator/machine.h @@ -32,6 +32,7 @@ struct regulator; * board/machine. * STATUS: Regulator can be enabled and disabled. * DRMS: Dynamic Regulator Mode Switching is enabled for this regulator. + * BYPASS: Regulator can be put into bypass mode */ #define REGULATOR_CHANGE_VOLTAGE 0x1 @@ -39,6 +40,7 @@ struct regulator; #define REGULATOR_CHANGE_MODE 0x4 #define REGULATOR_CHANGE_STATUS 0x8 #define REGULATOR_CHANGE_DRMS 0x10 +#define REGULATOR_CHANGE_BYPASS 0x20 /** * struct regulator_state - regulator state during low power system states @@ -92,6 +94,7 @@ struct regulator_state { * mode. * @initial_state: Suspend state to set by default. * @initial_mode: Mode to set at startup. + * @ramp_delay: Time to settle down after voltage change (unit: uV/us) */ struct regulation_constraints { @@ -125,6 +128,8 @@ struct regulation_constraints { /* mode to set on startup */ unsigned int initial_mode; + unsigned int ramp_delay; + /* constraint flags */ unsigned always_on:1; /* regulator never off when system is on */ unsigned boot_on:1; /* bootloader/firmware enabled regulator */ |