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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-11-10 17:38:29 +0300
committerLiam Girdwood <lrg@slimlogic.co.uk>2011-01-12 17:32:59 +0300
commit3a93f2a9f4d8f73d74c0e552feb68a10f778a219 (patch)
tree8a9f503f2f061ad3fe9712b0986b0da346f4c8d2 /drivers/regulator/ab3100.c
parent63cee946148821bca42be10130b061c2d0f5af7e (diff)
downloadlinux-3a93f2a9f4d8f73d74c0e552feb68a10f778a219.tar.xz
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/ab3100.c')
-rw-r--r--drivers/regulator/ab3100.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c
index b349266a43de..ed6feaf9398d 100644
--- a/drivers/regulator/ab3100.c
+++ b/drivers/regulator/ab3100.c
@@ -362,7 +362,8 @@ static int ab3100_get_best_voltage_index(struct regulator_dev *reg,
}
static int ab3100_set_voltage_regulator(struct regulator_dev *reg,
- int min_uV, int max_uV)
+ int min_uV, int max_uV,
+ unsigned *selector)
{
struct ab3100_regulator *abreg = reg->reg_data;
u8 regval;
@@ -373,6 +374,8 @@ static int ab3100_set_voltage_regulator(struct regulator_dev *reg,
if (bestindex < 0)
return bestindex;
+ *selector = bestindex;
+
err = abx500_get_register_interruptible(abreg->dev, 0,
abreg->regreg, &regval);
if (err) {