If a selector can't be used on a platform due to voltage constraints,
regulator_list_voltage() returns 0. Doing this unconditionally made
sense since constraints were set in machine_constraints_voltage() at
regulator registration time.
But for load switches that don't define a voltage output, the parent
supply voltage is used so the constraints should only be applied if
they were defined for the child regulators.
Signed-off-by: Javier Martinez Canillas <javier.marti...@collabora.co.uk>
---
drivers/regulator/core.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index a3c3785..7472535 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2228,9 +2228,11 @@ int regulator_list_voltage(struct regulator *regulator,
unsigned selector)
}
if (ret > 0) {
- if (ret < rdev->constraints->min_uV)
+ if (rdev->constraints->min_uV &&
+ ret < rdev->constraints->min_uV)
ret = 0;
- else if (ret > rdev->constraints->max_uV)
+ else if (rdev->constraints->max_uV &&
+ ret > rdev->constraints->max_uV)
ret = 0;
}
--
2.0.0.rc2
--
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