regulator: core: Fix logic to determinate if regulator can change voltage

Having a linear_min_sel setting means the first linear_min_sel selectors are
invalid. We need to subtract linear_min_sel when use n_voltages to determinate
if regulator can change voltage.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 1c8ff8ce5c57..f3cdfe5810cc 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1881,7 +1881,7 @@ int regulator_can_change_voltage(struct regulator *regulator)
 
         if (rdev->constraints &&
             rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE &&
-            rdev->desc->n_voltages > 1)
+            (rdev->desc->n_voltages - rdev->desc->linear_min_sel) > 1)
                 return 1;
 
         return 0;