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Commit 19280e40 authored by Axel Lin's avatar Axel Lin Committed by Mark Brown
Browse files

regulator: core: Fix continuous_voltage_range case in regulator_can_change_voltage 



Regulator drivers with continuous_voltage_range flag set allows not setting
n_voltages. Thus if continuous_voltage_range is set, check the constraint range
instead.

Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent a49f0d1e

drivers/regulator/core.c

+9 −3
Original line number Diff line number Diff line
@@ -1885,10 +1885,16 @@ int regulator_can_change_voltage(struct regulator *regulator) 
	struct regulator_dev	*rdev = regulator->rdev;



	if (rdev->constraints &&

	    rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE &&

	    (rdev->desc->n_voltages - rdev->desc->linear_min_sel) > 1)

	    (rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) {

		if (rdev->desc->n_voltages - rdev->desc->linear_min_sel > 1)

			return 1;



		if (rdev->desc->continuous_voltage_range &&

		    rdev->constraints->min_uV && rdev->constraints->max_uV &&

		    rdev->constraints->min_uV != rdev->constraints->max_uV)

			return 1;

	}



	return 0;

}

EXPORT_SYMBOL_GPL(regulator_can_change_voltage);