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regulator: core: Factor out regulator_map_voltage 

_regulator_call_set_voltage has code to translate a minimum/maximum
voltage pair into a selector. This code is useful for others aswell,
so create a regulator_map_voltage function.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sascha Hauer 2015-10-20 14:37:27 +02:00 committed by Mark Brown
parent a9f226bcd9
commit a204f41e2d
1 changed files with 18 additions and 17 deletions
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35
drivers/regulator/core.c
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@ -2606,6 +2606,23 @@ int regulator_is_supported_voltage(struct regulator *regulator,
}
EXPORT_SYMBOL_GPL(regulator_is_supported_voltage);
static int regulator_map_voltage(struct regulator_dev *rdev, int min_uV,
int max_uV)
{
const struct regulator_desc *desc = rdev->desc;
if (desc->ops->map_voltage)
return desc->ops->map_voltage(rdev, min_uV, max_uV);
if (desc->ops->list_voltage == regulator_list_voltage_linear)
return regulator_map_voltage_linear(rdev, min_uV, max_uV);
if (desc->ops->list_voltage == regulator_list_voltage_linear_range)
return regulator_map_voltage_linear_range(rdev, min_uV, max_uV);
return regulator_map_voltage_iterate(rdev, min_uV, max_uV);
}
static int _regulator_call_set_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV,
unsigned *selector)
@ -2694,23 +2711,7 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
}
} else if (rdev->desc->ops->set_voltage_sel) {
if (rdev->desc->ops->map_voltage) {
ret = rdev->desc->ops->map_voltage(rdev, min_uV,
max_uV);
} else {
if (rdev->desc->ops->list_voltage ==
regulator_list_voltage_linear)
ret = regulator_map_voltage_linear(rdev,
min_uV, max_uV);
else if (rdev->desc->ops->list_voltage ==
regulator_list_voltage_linear_range)
ret = regulator_map_voltage_linear_range(rdev,
min_uV, max_uV);
else
ret = regulator_map_voltage_iterate(rdev,
min_uV, max_uV);
}
ret = regulator_map_voltage(rdev, min_uV, max_uV);
if (ret >= 0) {
best_val = rdev->desc->ops->list_voltage(rdev, ret);
if (min_uV <= best_val && max_uV >= best_val) {