diff options
Diffstat (limited to 'include/linux/regulator')
-rw-r--r-- | include/linux/regulator/ab8500.h | 3 | ||||
-rw-r--r-- | include/linux/regulator/consumer.h | 7 | ||||
-rw-r--r-- | include/linux/regulator/coupler.h | 97 | ||||
-rw-r--r-- | include/linux/regulator/driver.h | 6 | ||||
-rw-r--r-- | include/linux/regulator/machine.h | 2 |
5 files changed, 108 insertions, 7 deletions
diff --git a/include/linux/regulator/ab8500.h b/include/linux/regulator/ab8500.h index 7cf8f797e13a..3ab1ddf151a2 100644 --- a/include/linux/regulator/ab8500.h +++ b/include/linux/regulator/ab8500.h @@ -37,14 +37,11 @@ enum ab8505_regulator_id { AB8505_LDO_AUX6, AB8505_LDO_INTCORE, AB8505_LDO_ADC, - AB8505_LDO_USB, AB8505_LDO_AUDIO, AB8505_LDO_ANAMIC1, AB8505_LDO_ANAMIC2, AB8505_LDO_AUX8, AB8505_LDO_ANA, - AB8505_SYSCLKREQ_2, - AB8505_SYSCLKREQ_4, AB8505_NUM_REGULATORS, }; diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index 815983419375..7f65544025fc 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -281,6 +281,8 @@ void devm_regulator_unregister_notifier(struct regulator *regulator, void *regulator_get_drvdata(struct regulator *regulator); void regulator_set_drvdata(struct regulator *regulator, void *data); +bool regulator_is_equal(struct regulator *reg1, struct regulator *reg2); + #else /* @@ -580,6 +582,11 @@ static inline int regulator_list_voltage(struct regulator *regulator, unsigned s return -EINVAL; } +static inline bool +regulator_is_equal(struct regulator *reg1, struct regulator *reg2) +{ + return false; +} #endif static inline int regulator_set_voltage_triplet(struct regulator *regulator, diff --git a/include/linux/regulator/coupler.h b/include/linux/regulator/coupler.h new file mode 100644 index 000000000000..0212d6255e4e --- /dev/null +++ b/include/linux/regulator/coupler.h @@ -0,0 +1,97 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * coupler.h -- SoC Regulator support, coupler API. + * + * Regulator Coupler Interface. + */ + +#ifndef __LINUX_REGULATOR_COUPLER_H_ +#define __LINUX_REGULATOR_COUPLER_H_ + +#include <linux/kernel.h> +#include <linux/suspend.h> + +struct regulator_coupler; +struct regulator_dev; + +/** + * struct regulator_coupler - customized regulator's coupler + * + * Regulator's coupler allows to customize coupling algorithm. + * + * @list: couplers list entry + * @attach_regulator: Callback invoked on creation of a coupled regulator, + * couples are unresolved at this point. The callee should + * check that it could handle the regulator and return 0 on + * success, -errno on failure and 1 if given regulator is + * not suitable for this coupler (case of having multiple + * regulators in a system). Callback shall be implemented. + * @detach_regulator: Callback invoked on destruction of a coupled regulator. + * This callback is optional and could be NULL. + * @balance_voltage: Callback invoked when voltage of a coupled regulator is + * changing. Called with all of the coupled rdev's being held + * under "consumer lock". The callee should perform voltage + * balancing, changing voltage of the coupled regulators as + * needed. It's up to the coupler to verify the voltage + * before changing it in hardware, i.e. coupler should + * check consumer's min/max and etc. This callback is + * optional and could be NULL, in which case a generic + * voltage balancer will be used. + */ +struct regulator_coupler { + struct list_head list; + + int (*attach_regulator)(struct regulator_coupler *coupler, + struct regulator_dev *rdev); + int (*detach_regulator)(struct regulator_coupler *coupler, + struct regulator_dev *rdev); + int (*balance_voltage)(struct regulator_coupler *coupler, + struct regulator_dev *rdev, + suspend_state_t state); +}; + +#ifdef CONFIG_REGULATOR +int regulator_coupler_register(struct regulator_coupler *coupler); +const char *rdev_get_name(struct regulator_dev *rdev); +int regulator_check_consumers(struct regulator_dev *rdev, + int *min_uV, int *max_uV, + suspend_state_t state); +int regulator_check_voltage(struct regulator_dev *rdev, + int *min_uV, int *max_uV); +int regulator_get_voltage_rdev(struct regulator_dev *rdev); +int regulator_set_voltage_rdev(struct regulator_dev *rdev, + int min_uV, int max_uV, + suspend_state_t state); +#else +static inline int regulator_coupler_register(struct regulator_coupler *coupler) +{ + return 0; +} +static inline const char *rdev_get_name(struct regulator_dev *rdev) +{ + return NULL; +} +static inline int regulator_check_consumers(struct regulator_dev *rdev, + int *min_uV, int *max_uV, + suspend_state_t state) +{ + return -EINVAL; +} +static inline int regulator_check_voltage(struct regulator_dev *rdev, + int *min_uV, int *max_uV) +{ + return -EINVAL; +} +static inline int regulator_get_voltage_rdev(struct regulator_dev *rdev) +{ + return -EINVAL; +} +static inline int regulator_set_voltage_rdev(struct regulator_dev *rdev, + int min_uV, int max_uV, + suspend_state_t state) +{ + return -EINVAL; +} +#endif + +#endif diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index d45ab52c91c9..64ef7514f62d 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -12,8 +12,6 @@ #ifndef __LINUX_REGULATOR_DRIVER_H_ #define __LINUX_REGULATOR_DRIVER_H_ -#define MAX_COUPLED 2 - #include <linux/device.h> #include <linux/notifier.h> #include <linux/regulator/consumer.h> @@ -423,7 +421,8 @@ struct regulator_config { * incremented. */ struct coupling_desc { - struct regulator_dev *coupled_rdevs[MAX_COUPLED]; + struct regulator_dev **coupled_rdevs; + struct regulator_coupler *coupler; int n_resolved; int n_coupled; }; @@ -549,4 +548,5 @@ void regulator_unlock(struct regulator_dev *rdev); */ int regulator_desc_list_voltage_linear_range(const struct regulator_desc *desc, unsigned int selector); + #endif diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h index 5539efa76d26..a84cc8879c3e 100644 --- a/include/linux/regulator/machine.h +++ b/include/linux/regulator/machine.h @@ -153,7 +153,7 @@ struct regulation_constraints { int system_load; /* used for coupled regulators */ - int max_spread; + u32 *max_spread; /* used for changing voltage in steps */ int max_uV_step; |