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Commit 4aa922c0 authored by Mark Brown's avatar Mark Brown Committed by Liam Girdwood
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regulator: Only apply voltage constraints from consumers that set them 



When applying the set_voltage() requests from consumers skip over those
consumers that haven't set anything, otherwise we'll come out with a
maximum voltage of zero.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent a4b41483

drivers/regulator/core.c

+7 −0
Original line number Original line Diff line number Diff line
@@ -158,6 +158,13 @@ static int regulator_check_consumers(struct regulator_dev *rdev, 
	struct regulator *regulator;

	struct regulator *regulator;





	list_for_each_entry(regulator, &rdev->consumer_list, list) {

	list_for_each_entry(regulator, &rdev->consumer_list, list) {

		/*

		 * Assume consumers that didn't say anything are OK

		 * with anything in the constraint range.

		 */

		if (!regulator->min_uV && !regulator->max_uV)

			continue;



		if (*max_uV > regulator->max_uV)

		if (*max_uV > regulator->max_uV)

			*max_uV = regulator->max_uV;

			*max_uV = regulator->max_uV;

		if (*min_uV < regulator->min_uV)

		if (*min_uV < regulator->min_uV)