diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-11-10 14:38:29 +0000 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2011-01-12 14:32:59 +0000 |
| commit | 3a93f2a9f4d8f73d74c0e552feb68a10f778a219 (patch) | |
| tree | 8a9f503f2f061ad3fe9712b0986b0da346f4c8d2 /drivers/regulator/ab8500.c | |
| parent | 63cee946148821bca42be10130b061c2d0f5af7e (diff) | |
regulator: Report actual configured voltage to set_voltage()
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>
Diffstat (limited to 'drivers/regulator/ab8500.c')
| -rw-r--r-- | drivers/regulator/ab8500.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index db6b70f20511..2f4ec0facef1 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -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, |