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regulator: core: Move list_voltage_{linear,linear_range,table} to hel…
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…pers.c

Move regulator_list_voltage_{linear,linear_range,table} helper functions to
helpers.c.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Axel Lin authored and Mark Brown committed Aug 9, 2013
1 parent c4a54b8 commit d295f76
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Showing 2 changed files with 86 additions and 86 deletions.
86 changes: 0 additions & 86 deletions drivers/regulator/core.c
Original file line number Diff line number Diff line change
Expand Up @@ -1988,92 +1988,6 @@ int regulator_count_voltages(struct regulator *regulator)
}
EXPORT_SYMBOL_GPL(regulator_count_voltages);

/**
* regulator_list_voltage_linear - List voltages with simple calculation
*
* @rdev: Regulator device
* @selector: Selector to convert into a voltage
*
* Regulators with a simple linear mapping between voltages and
* selectors can set min_uV and uV_step in the regulator descriptor
* and then use this function as their list_voltage() operation,
*/
int regulator_list_voltage_linear(struct regulator_dev *rdev,
unsigned int selector)
{
if (selector >= rdev->desc->n_voltages)
return -EINVAL;
if (selector < rdev->desc->linear_min_sel)
return 0;

selector -= rdev->desc->linear_min_sel;

return rdev->desc->min_uV + (rdev->desc->uV_step * selector);
}
EXPORT_SYMBOL_GPL(regulator_list_voltage_linear);

/**
* regulator_list_voltage_linear_range - List voltages for linear ranges
*
* @rdev: Regulator device
* @selector: Selector to convert into a voltage
*
* Regulators with a series of simple linear mappings between voltages
* and selectors can set linear_ranges in the regulator descriptor and
* then use this function as their list_voltage() operation,
*/
int regulator_list_voltage_linear_range(struct regulator_dev *rdev,
unsigned int selector)
{
const struct regulator_linear_range *range;
int i;

if (!rdev->desc->n_linear_ranges) {
BUG_ON(!rdev->desc->n_linear_ranges);
return -EINVAL;
}

for (i = 0; i < rdev->desc->n_linear_ranges; i++) {
range = &rdev->desc->linear_ranges[i];

if (!(selector >= range->min_sel &&
selector <= range->max_sel))
continue;

selector -= range->min_sel;

return range->min_uV + (range->uV_step * selector);
}

return -EINVAL;
}
EXPORT_SYMBOL_GPL(regulator_list_voltage_linear_range);

/**
* regulator_list_voltage_table - List voltages with table based mapping
*
* @rdev: Regulator device
* @selector: Selector to convert into a voltage
*
* Regulators with table based mapping between voltages and
* selectors can set volt_table in the regulator descriptor
* and then use this function as their list_voltage() operation.
*/
int regulator_list_voltage_table(struct regulator_dev *rdev,
unsigned int selector)
{
if (!rdev->desc->volt_table) {
BUG_ON(!rdev->desc->volt_table);
return -EINVAL;
}

if (selector >= rdev->desc->n_voltages)
return -EINVAL;

return rdev->desc->volt_table[selector];
}
EXPORT_SYMBOL_GPL(regulator_list_voltage_table);

/**
* regulator_list_voltage - enumerate supported voltages
* @regulator: regulator source
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86 changes: 86 additions & 0 deletions drivers/regulator/helpers.c
Original file line number Diff line number Diff line change
Expand Up @@ -319,6 +319,92 @@ int regulator_map_voltage_linear_range(struct regulator_dev *rdev,
}
EXPORT_SYMBOL_GPL(regulator_map_voltage_linear_range);

/**
* regulator_list_voltage_linear - List voltages with simple calculation
*
* @rdev: Regulator device
* @selector: Selector to convert into a voltage
*
* Regulators with a simple linear mapping between voltages and
* selectors can set min_uV and uV_step in the regulator descriptor
* and then use this function as their list_voltage() operation,
*/
int regulator_list_voltage_linear(struct regulator_dev *rdev,
unsigned int selector)
{
if (selector >= rdev->desc->n_voltages)
return -EINVAL;
if (selector < rdev->desc->linear_min_sel)
return 0;

selector -= rdev->desc->linear_min_sel;

return rdev->desc->min_uV + (rdev->desc->uV_step * selector);
}
EXPORT_SYMBOL_GPL(regulator_list_voltage_linear);

/**
* regulator_list_voltage_linear_range - List voltages for linear ranges
*
* @rdev: Regulator device
* @selector: Selector to convert into a voltage
*
* Regulators with a series of simple linear mappings between voltages
* and selectors can set linear_ranges in the regulator descriptor and
* then use this function as their list_voltage() operation,
*/
int regulator_list_voltage_linear_range(struct regulator_dev *rdev,
unsigned int selector)
{
const struct regulator_linear_range *range;
int i;

if (!rdev->desc->n_linear_ranges) {
BUG_ON(!rdev->desc->n_linear_ranges);
return -EINVAL;
}

for (i = 0; i < rdev->desc->n_linear_ranges; i++) {
range = &rdev->desc->linear_ranges[i];

if (!(selector >= range->min_sel &&
selector <= range->max_sel))
continue;

selector -= range->min_sel;

return range->min_uV + (range->uV_step * selector);
}

return -EINVAL;
}
EXPORT_SYMBOL_GPL(regulator_list_voltage_linear_range);

/**
* regulator_list_voltage_table - List voltages with table based mapping
*
* @rdev: Regulator device
* @selector: Selector to convert into a voltage
*
* Regulators with table based mapping between voltages and
* selectors can set volt_table in the regulator descriptor
* and then use this function as their list_voltage() operation.
*/
int regulator_list_voltage_table(struct regulator_dev *rdev,
unsigned int selector)
{
if (!rdev->desc->volt_table) {
BUG_ON(!rdev->desc->volt_table);
return -EINVAL;
}

if (selector >= rdev->desc->n_voltages)
return -EINVAL;

return rdev->desc->volt_table[selector];
}
EXPORT_SYMBOL_GPL(regulator_list_voltage_table);

/**
* regulator_set_bypass_regmap - Default set_bypass() using regmap
*
Expand Down

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