Commit d295f767 authored by Axel Lin's avatar Axel Lin Committed by Mark Brown
Browse files

regulator: core: Move list_voltage_{linear,linear_range,table} to helpers.c 



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

Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent c4a54b8d

drivers/regulator/core.c

+0 −86
Original line number Diff line number Diff line
@@ -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

drivers/regulator/helpers.c

+86 −0
Original line number Diff line number Diff line
@@ -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

 *