lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

regulator: Support disabling of unused regulators by machines

Browse Source 
At present it is not possible for machine constraints to disable
regulators which have been left on when the system starts, for example
as a result of fixed default configurations in hardware. This means that
power may be wasted by these regulators if they are not in use.

Provide intial support for this with a late_initcall which will disable
any unused regulators if the machine has enabled this feature by calling
regulator_has_full_constraints(). If this has not been called then print
a warning to encourage users to fully specify their constraints so that
we can change this to be the default behaviour in future.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Mark Brown
2009-03-16 19:36:34 +00:00
committed by Liam Girdwood
parent 50f075963f
commit ca7255614e
2 changed files with 94 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/regulator/machine.h
View File

@ -166,4 +166,6 @@ struct regulator_init_data {
int regulator_suspend_prepare(suspend_state_t state);
void regulator_has_full_constraints(void);
#endif