REGULATOR_SET_LOAD(9)

NAME
regulator_set_load - set regulator load

SYNOPSIS

int regulator_set_load(struct regulator * regulator, int uA_load);

ARGUMENTS

regulator
    regulator source

uA_load
    load current

DESCRIPTION

Notifies the regulator core of a new device load. This is then used by DRMS (if enabled by constraints) to set the most efficient regulator operating mode for the new regulator loading.

Consumer devices notify their supply regulator of the maximum power they will require (can be taken from device datasheet in the power consumption tables) when they change operational status and hence power state. Examples of operational state changes that can affect power consumption are :-

o Device is opened / closed. o Device I/O is about to begin or has just finished. o Device is idling in between work.

This information is also exported via sysfs to userspace.

DRMS will sum the total requested load on the regulator and change to the most efficient operating mode if platform constraints allow.

On error a negative errno is returned.

AUTHORS

Liam Girdwood <lrg@slimlogic.co.uk>
    Author.

Mark Brown <broonie@opensource.wolfsonmicro.com>
Wolfson Microelectronics,

    Author.

COPYRIGHT