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regulator: provide regulator_bulk_set_supply_names() 

There are many regulator consumers who - before using the regulator
bulk functions - set the supply names in regulator_bulk_data using
a for loop.

Let's provide a simple helper in the consumer API that allows users
to do the same with a single function call.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20190830071740.4267-2-brgl@bgdev.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Bartosz Golaszewski 2019-08-30 09:17:37 +02:00 committed by Mark Brown
parent baedad4c35
commit d0087e7271
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GPG Key ID: 24D68B725D5487D0
2 changed files with 33 additions and 0 deletions
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21
drivers/regulator/helpers.c
View File

@ -860,3 +860,24 @@ int regulator_get_current_limit_regmap(struct regulator_dev *rdev)
return -EINVAL;
}
EXPORT_SYMBOL_GPL(regulator_get_current_limit_regmap);
/**
* regulator_bulk_set_supply_names - initialize the 'supply' fields in an array
* of regulator_bulk_data structs
*
* @consumers: array of regulator_bulk_data entries to initialize
* @supply_names: array of supply name strings
* @num_supplies: number of supply names to initialize
*
* Note: the 'consumers' array must be the size of 'num_supplies'.
*/
void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
const char *const *supply_names,
unsigned int num_supplies)
{
unsigned int i;
for (i = 0; i < num_supplies; i++)
consumers[i].supply = supply_names[i];
}
EXPORT_SYMBOL_GPL(regulator_bulk_set_supply_names);

12
include/linux/regulator/consumer.h
View File

@ -281,6 +281,12 @@ void devm_regulator_unregister_notifier(struct regulator *regulator,
void *regulator_get_drvdata(struct regulator *regulator);
void regulator_set_drvdata(struct regulator *regulator, void *data);
/* misc helpers */
void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
const char *const *supply_names,
unsigned int num_supplies);
#else
/*
@ -580,6 +586,12 @@ static inline int regulator_list_voltage(struct regulator *regulator, unsigned s
return -EINVAL;
}
void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
const char *const *supply_names,
unsigned int num_supplies)
{
}
#endif
static inline int regulator_set_voltage_triplet(struct regulator *regulator,