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UPSTREAM: regulator: core: Log when we bring constraints into range

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This aids in debugging problems triggered by the regulator core applying
its constraints, we could potentially crash immediately after updating
the voltage if the constraints are buggy.

Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from commit 45a91e8f76)

Change-Id: I8c3e4a856f05c13e6ce3db8a6d46686557109962
Signed-off-by: David Wu <david.wu@rock-chips.com>
This commit is contained in:
Mark Brown
2016-03-29 16:33:42 -07:00
committed by Huang, Tao
parent 81f752f858
commit c90bbfc477
1 changed files with 2 additions and 0 deletions
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drivers/regulator/core.c
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@@ -933,6 +933,8 @@ static int machine_constraints_voltage(struct regulator_dev *rdev,
}
if (target_min != current_uV || target_max != current_uV) {
rdev_info(rdev, "Bringing %duV into %d-%duV\n",
current_uV, target_min, target_max);
ret = _regulator_do_set_voltage(
rdev, target_min, target_max);
if (ret < 0) {