REGULATOR_HAS_FULL_C(9) API reference REGULATOR_HAS_FULL_C(9)NAME
regulator_has_full_constraints - the system has fully specified constraints
SYNOPSIS
void regulator_has_full_constraints(void);
ARGUMENTS
void
no arguments
DESCRIPTION
Calling this function will cause the regulator API to disable all regulators which have a zero use count and don't have an always_on
constraint in a late_initcall.
The intention is that this will become the default behaviour in a future kernel release so users are encouraged to use this facility now.
AUTHORS
Liam Girdwood <lrg@slimlogic.co.uk>
Author.
Mark Brown <broonie@opensource.wolfsonmicro.com>
Wolfson Microelectronics,
Author.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 REGULATOR_HAS_FULL_C(9)
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REGULATOR_SET_OPTIMU(9) API reference REGULATOR_SET_OPTIMU(9)NAME
regulator_set_optimum_mode - set regulator optimum operating mode
SYNOPSIS
int regulator_set_optimum_mode(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.
Returns the new regulator mode or error.
AUTHORS
Liam Girdwood <lrg@slimlogic.co.uk>
Author.
Mark Brown <broonie@opensource.wolfsonmicro.com>
Wolfson Microelectronics,
Author.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 REGULATOR_SET_OPTIMU(9)
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