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/pcf50633-regulator.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/pcf50633-regulator.c')
| -rw-r--r-- | drivers/regulator/pcf50633-regulator.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c index c8f41dc05b7..69a11d9dd87 100644 --- a/drivers/regulator/pcf50633-regulator.c +++ b/drivers/regulator/pcf50633-regulator.c @@ -108,7 +108,8 @@ static unsigned int ldo_voltage_value(u8 bits) } static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV) + int min_uV, int max_uV, + unsigned *selector) { struct pcf50633 *pcf; int regulator_id, millivolts; @@ -147,6 +148,8 @@ static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev, return -EINVAL; } + *selector = volt_bits; + return pcf50633_reg_write(pcf, regnr, volt_bits); } |