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authorMark Brown <broonie@kernel.org>2016-03-30 02:33:42 +0300
committerMark Brown <broonie@kernel.org>2016-03-30 02:37:46 +0300
commit45a91e8f767afbbffff46bf7251f81d15d121136 (patch)
treeb414b61131eab453b4236a42ab15e956cc8f7702 /drivers/regulator/core.c
parentfa93fd4ecc9c58475abac6db93a797bff893bc16 (diff)
downloadlinux-45a91e8f767afbbffff46bf7251f81d15d121136.tar.xz
regulator: core: Log when we bring constraints into range
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>
Diffstat (limited to 'drivers/regulator/core.c')
-rw-r--r--drivers/regulator/core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 881c37e61f75..18dd7ee61455 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -935,6 +935,8 @@ 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) {