regulator: fixed: fix regulator_list_voltage() for regression

[linux-drm-fsl-dcu.git] / drivers / regulator / core.c

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 6382f0af353bc257e3ee6c3b545f75c0c1f2904e..3fe13130baec12218a58230863b313bf4c20d034 100644 (file)
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2184,6 +2184,9 @@ int regulator_list_voltage(struct regulator *regulator, unsigned selector)
        struct regulator_ops    *ops = rdev->desc->ops;
        int                     ret;
 
+       if (rdev->desc->fixed_uV && rdev->desc->n_voltages == 1 && !selector)
+               return rdev->desc->fixed_uV;
+
        if (!ops->list_voltage || selector >= rdev->desc->n_voltages)
                return -EINVAL;