xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

regulator: Report actual configured voltage to set_voltage()

Browse Source 
Change the interface used by set_voltage() to report the selected value
to the regulator core in terms of a selector used by list_voltage().
This allows the regulator core to know the voltage that was chosen
without having to do an explict get_voltage(), which would be much more
expensive as it will generally access hardware.

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
2010-11-10 14:38:29 +00:00
committed by Liam Girdwood
parent 63cee94614
commit 3a93f2a9f4
27 changed files with 202 additions and 79 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/regulator/ab8500.c
View File

@@ -215,7 +215,8 @@ static int ab8500_get_best_voltage_index(struct regulator_dev *rdev,
}
static int ab8500_regulator_set_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV)
int min_uV, int max_uV,
unsigned *selector)
{
int regulator_id, ret;
struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
@@ -232,6 +233,8 @@ static int ab8500_regulator_set_voltage(struct regulator_dev *rdev,
return ret;
}
*selector = ret;
/* set the registers for the request */
ret = abx500_mask_and_set_register_interruptible(info->dev,
info->voltage_bank, info->voltage_reg,