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regulator: core: Only propagate voltage changes to if it can change voltages
When we are propagating voltage changes to parent regulators don't bother if the parent does not have permission to change voltages. This simplifies error checking in the function for cases where the regulator lacks some of the voltage operations. Reported-by: Dong Aisheng <aisheng.dong@nxp.com> Tested-by: Dong Aisheng <aisheng.dong@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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1 changed files with 4 additions and 2 deletions
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@ -2939,8 +2939,10 @@ static int regulator_set_voltage_unlocked(struct regulator *regulator,
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if (ret < 0)
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if (ret < 0)
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goto out2;
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goto out2;
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if (rdev->supply && (rdev->desc->min_dropout_uV ||
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if (rdev->supply &&
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!rdev->desc->ops->get_voltage)) {
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regulator_ops_is_valid(rdev->supply->rdev,
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REGULATOR_CHANGE_VOLTAGE) &&
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(rdev->desc->min_dropout_uV || !rdev->desc->ops->get_voltage)) {
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int current_supply_uV;
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int current_supply_uV;
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int selector;
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int selector;
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