regulator: tps80031: Implement list_voltage and set n_voltages = 1 for fixed regulators

Implement list_voltage for fixed regulators, otherwise
regulator_is_supported_voltage() returns 0.

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

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/regulator/tps80031-regulator.c b/drivers/regulator/tps80031-regulator.c
index aaab3d73d7bd..ce480499177e 100644
--- a/drivers/regulator/tps80031-regulator.c
+++ b/drivers/regulator/tps80031-regulator.c
@@ -407,15 +407,18 @@ static struct regulator_ops tps80031_ldo_ops = {
 };
 
 static struct regulator_ops tps80031_vbus_sw_ops = {
+        .list_voltage   = regulator_list_voltage_linear,
         .enable         = tps80031_vbus_enable,
         .disable        = tps80031_vbus_disable,
         .is_enabled     = tps80031_vbus_is_enabled,
 };
 
 static struct regulator_ops tps80031_vbus_hw_ops = {
+        .list_voltage   = regulator_list_voltage_linear,
 };
 
 static struct regulator_ops tps80031_ext_reg_ops = {
+        .list_voltage   = regulator_list_voltage_linear,
         .enable         = tps80031_reg_enable,
         .disable        = tps80031_reg_disable,
         .is_enabled     = tps80031_reg_is_enabled,
@@ -477,7 +480,8 @@ static struct regulator_ops tps80031_ext_reg_ops = {
         .desc = {                                               \
                 .name = "tps80031_"#_id,                        \
                 .id = TPS80031_REGULATOR_##_id,                 \
-                .n_voltages = 2,                                \
+                .min_uV = max_mV * 1000,                        \
+                .n_voltages = 1,                                \
                 .ops = &_ops,                                   \
                 .type = REGULATOR_VOLTAGE,                      \
                 .owner = THIS_MODULE,                           \