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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>
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@ -2606,6 +2606,23 @@ int regulator_is_supported_voltage(struct regulator *regulator,
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}
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EXPORT_SYMBOL_GPL(regulator_is_supported_voltage);
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static int regulator_map_voltage(struct regulator_dev *rdev, int min_uV,
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int max_uV)
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{
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const struct regulator_desc *desc = rdev->desc;
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if (desc->ops->map_voltage)
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return desc->ops->map_voltage(rdev, min_uV, max_uV);
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if (desc->ops->list_voltage == regulator_list_voltage_linear)
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return regulator_map_voltage_linear(rdev, min_uV, max_uV);
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if (desc->ops->list_voltage == regulator_list_voltage_linear_range)
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return regulator_map_voltage_linear_range(rdev, min_uV, max_uV);
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return regulator_map_voltage_iterate(rdev, min_uV, max_uV);
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}
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static int _regulator_call_set_voltage(struct regulator_dev *rdev,
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int min_uV, int max_uV,
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unsigned *selector)
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@ -2694,23 +2711,7 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
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}
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} else if (rdev->desc->ops->set_voltage_sel) {
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if (rdev->desc->ops->map_voltage) {
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ret = rdev->desc->ops->map_voltage(rdev, min_uV,
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max_uV);
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} else {
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if (rdev->desc->ops->list_voltage ==
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regulator_list_voltage_linear)
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ret = regulator_map_voltage_linear(rdev,
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min_uV, max_uV);
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else if (rdev->desc->ops->list_voltage ==
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regulator_list_voltage_linear_range)
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ret = regulator_map_voltage_linear_range(rdev,
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min_uV, max_uV);
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else
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ret = regulator_map_voltage_iterate(rdev,
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min_uV, max_uV);
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}
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ret = regulator_map_voltage(rdev, min_uV, max_uV);
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if (ret >= 0) {
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best_val = rdev->desc->ops->list_voltage(rdev, ret);
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if (min_uV <= best_val && max_uV >= best_val) {
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