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| 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/max8952.c | |
| parent | 63cee946148821bca42be10130b061c2d0f5af7e (diff) | |
| download | linux-3a93f2a9f4d8f73d74c0e552feb68a10f778a219.tar.gz linux-3a93f2a9f4d8f73d74c0e552feb68a10f778a219.tar.bz2 linux-3a93f2a9f4d8f73d74c0e552feb68a10f778a219.zip | |
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/max8952.c')
| -rw-r--r-- | drivers/regulator/max8952.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/regulator/max8952.c b/drivers/regulator/max8952.c index 0d5dda4fd911..a8f4ecfb0843 100644 --- a/drivers/regulator/max8952.c +++ b/drivers/regulator/max8952.c @@ -133,7 +133,7 @@ static int max8952_get_voltage(struct regulator_dev *rdev) } static int max8952_set_voltage(struct regulator_dev *rdev, - int min_uV, int max_uV) + int min_uV, int max_uV, unsigned *selector) { struct max8952_data *max8952 = rdev_get_drvdata(rdev); s8 vid = -1, i; @@ -156,6 +156,7 @@ static int max8952_set_voltage(struct regulator_dev *rdev, if (vid >= 0 && vid < MAX8952_NUM_DVS_MODE) { max8952->vid0 = (vid % 2 == 1); max8952->vid1 = (((vid >> 1) % 2) == 1); + *selector = vid; gpio_set_value(max8952->pdata->gpio_vid0, max8952->vid0); gpio_set_value(max8952->pdata->gpio_vid1, max8952->vid1); } else |