Merge remote-tracking branch 'regulator/topic/linar' into regulator-next

2 files changed, 16 insertions, 0 deletions

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 815d6df8bd5f..288c75abc190 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2138,6 +2138,21 @@ int regulator_list_voltage(struct regulator *regulator, unsigned selector)
 EXPORT_SYMBOL_GPL(regulator_list_voltage);
 
 /**
+ * regulator_get_linear_step - return the voltage step size between VSEL values
+ * @regulator: regulator source
+ *
+ * Returns the voltage step size between VSEL values for linear
+ * regulators, or return 0 if the regulator isn't a linear regulator.
+ */
+unsigned int regulator_get_linear_step(struct regulator *regulator)
+{
+        struct regulator_dev *rdev = regulator->rdev;
+
+        return rdev->desc->uV_step;
+}
+EXPORT_SYMBOL_GPL(regulator_get_linear_step);
+
+/**
  * regulator_is_supported_voltage - check if a voltage range can be supported
  *
  * @regulator: Regulator to check.
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index 145022a83085..3a76389c6aaa 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -165,6 +165,7 @@ int regulator_count_voltages(struct regulator *regulator);
 int regulator_list_voltage(struct regulator *regulator, unsigned selector);
 int regulator_is_supported_voltage(struct regulator *regulator,
                                    int min_uV, int max_uV);
+unsigned int regulator_get_linear_step(struct regulator *regulator);
 int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
 int regulator_set_voltage_time(struct regulator *regulator,
                                int old_uV, int new_uV);