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/wm8350-regulator.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/wm8350-regulator.c')
| -rw-r--r-- | drivers/regulator/wm8350-regulator.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c index fe4b8a8a9dfd..7e45b0ddd710 100644 --- a/drivers/regulator/wm8350-regulator.c +++ b/drivers/regulator/wm8350-regulator.c @@ -360,7 +360,7 @@ int wm8350_isink_set_flash(struct wm8350 *wm8350, int isink, u16 mode, EXPORT_SYMBOL_GPL(wm8350_isink_set_flash); static int wm8350_dcdc_set_voltage(struct regulator_dev *rdev, int min_uV, - int max_uV) + int max_uV, unsigned *selector) { struct wm8350 *wm8350 = rdev_get_drvdata(rdev); int volt_reg, dcdc = rdev_get_id(rdev), mV, @@ -397,6 +397,8 @@ static int wm8350_dcdc_set_voltage(struct regulator_dev *rdev, int min_uV, return -EINVAL; } + *selector = mV; + /* all DCDCs have same mV bits */ val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_DC1_VSEL_MASK; wm8350_reg_write(wm8350, volt_reg, val | mV); @@ -754,7 +756,7 @@ static int wm8350_ldo_set_suspend_disable(struct regulator_dev *rdev) } static int wm8350_ldo_set_voltage(struct regulator_dev *rdev, int min_uV, - int max_uV) + int max_uV, unsigned *selector) { struct wm8350 *wm8350 = rdev_get_drvdata(rdev); int volt_reg, ldo = rdev_get_id(rdev), mV, min_mV = min_uV / 1000, @@ -797,6 +799,8 @@ static int wm8350_ldo_set_voltage(struct regulator_dev *rdev, int min_uV, return -EINVAL; } + *selector = mV; + /* all LDOs have same mV bits */ val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_LDO1_VSEL_MASK; wm8350_reg_write(wm8350, volt_reg, val | mV); |