Unverified Commit b059b7e0 authored by Marek Vasut's avatar Marek Vasut Committed by Mark Brown
Browse files

regulator: core: Add regulator_is_equal() helper 



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: default avatarMarek 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: default avatarMark Brown <broonie@kernel.org>
parent e42617b8

drivers/regulator/helpers.c

+14 −0
Original line number Diff line number Diff line
@@ -13,6 +13,8 @@ 
#include <linux/regulator/driver.h>

#include <linux/module.h>



#include "internal.h"



/**

 * regulator_is_enabled_regmap - standard is_enabled() for regmap users

 *
@@ -881,3 +883,15 @@ void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers, 
		consumers[i].supply = supply_names[i];

}

EXPORT_SYMBOL_GPL(regulator_bulk_set_supply_names);



/**

 * regulator_is_equal - test whether two regulators are the same

 *

 * @reg1: first regulator to operate on

 * @reg2: second regulator to operate on

 */

bool regulator_is_equal(struct regulator *reg1, struct regulator *reg2)

{

	return reg1->rdev == reg2->rdev;

}

EXPORT_SYMBOL_GPL(regulator_is_equal);

include/linux/regulator/consumer.h

+7 −0
Original line number Diff line number Diff line
@@ -287,6 +287,8 @@ void regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers, 
				     const char *const *supply_names,

				     unsigned int num_supplies);



bool regulator_is_equal(struct regulator *reg1, struct regulator *reg2);



#else



/*
@@ -593,6 +595,11 @@ regulator_bulk_set_supply_names(struct regulator_bulk_data *consumers, 
{

}



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,

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