regulator: core: Add regulator_is_equal() helper
commit b059b7e0ec
upstream.
Add regulator_is_equal() helper to compare whether two regulators are
the same. This is useful for checking whether two separate regulators
in a driver are actually the same supply.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Igor Opaniuk <igor.opaniuk@toradex.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Link: https://lore.kernel.org/r/20191220164450.1395038-1-marex@denx.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -13,6 +13,8 @@
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#include <linux/regulator/driver.h>
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#include <linux/regulator/driver.h>
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#include <linux/module.h>
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#include <linux/module.h>
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#include "internal.h"
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/**
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/**
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* regulator_is_enabled_regmap - standard is_enabled() for regmap users
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* regulator_is_enabled_regmap - standard is_enabled() for regmap users
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*
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*
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@ -881,3 +883,15 @@ void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
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consumers[i].supply = supply_names[i];
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consumers[i].supply = supply_names[i];
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}
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}
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EXPORT_SYMBOL_GPL(regulator_bulk_set_supply_names);
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EXPORT_SYMBOL_GPL(regulator_bulk_set_supply_names);
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/**
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* regulator_is_equal - test whether two regulators are the same
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*
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* @reg1: first regulator to operate on
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* @reg2: second regulator to operate on
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*/
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bool regulator_is_equal(struct regulator *reg1, struct regulator *reg2)
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{
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return reg1->rdev == reg2->rdev;
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}
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EXPORT_SYMBOL_GPL(regulator_is_equal);
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@ -287,6 +287,8 @@ void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
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const char *const *supply_names,
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const char *const *supply_names,
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unsigned int num_supplies);
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unsigned int num_supplies);
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bool regulator_is_equal(struct regulator *reg1, struct regulator *reg2);
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#else
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#else
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/*
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/*
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@ -593,6 +595,11 @@ regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers,
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{
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{
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}
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}
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static inline bool
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regulator_is_equal(struct regulator *reg1, struct regulator *reg2);
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{
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return false;
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}
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#endif
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#endif
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static inline int regulator_set_voltage_triplet(struct regulator *regulator,
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static inline int regulator_set_voltage_triplet(struct regulator *regulator,
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