}
EXPORT_SYMBOL_GPL(regulator_list_voltage);
+/**
+ * regulator_is_supported_voltage - check if a voltage range can be supported
+ *
+ * @regulator: Regulator to check.
+ * @min_uV: Minimum required voltage in uV.
+ * @max_uV: Maximum required voltage in uV.
+ *
+ * Returns a boolean or a negative error code.
+ */
+int regulator_is_supported_voltage(struct regulator *regulator,
+ int min_uV, int max_uV)
+{
+ int i, voltages, ret;
+
+ ret = regulator_count_voltages(regulator);
+ if (ret < 0)
+ return ret;
+ voltages = ret;
+
+ for (i = 0; i < voltages; i++) {
+ ret = regulator_list_voltage(regulator, i);
+
+ if (ret >= min_uV && ret <= max_uV)
+ return 1;
+ }
+
+ return 0;
+}
+
/**
* regulator_set_voltage - set regulator output voltage
* @regulator: regulator source
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);
int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
int regulator_get_voltage(struct regulator *regulator);
int regulator_set_current_limit(struct regulator *regulator,