I am trying to get the two values of two picklist values for one controlling field. Example if Country is Controlling field then State Names and State Code code should be fetched but I am getting only one dependent values for state names picklist field. Please help me.
 

public class CustomController{

   @AuraEnabled 
    public static Map<String, List<String>> getDependentMap(sObject objDetail, string contrfieldApiName,string depfieldApiName, string depfieldApiName2) {
        String controllingField = contrfieldApiName.toLowerCase();
        String dependentField = depfieldApiName.toLowerCase();

        Map<String,List<String>> objResults = new Map<String,List<String>>();

        //Schema.sObjectType objType = objDetail.getSObjectType().getDescribe().getName();
        /*if (objType==null){
            return objResults; 
        }*/
        Map<String, Schema.SObjectField> objFieldMap = objDetail.getSObjectType().getDescribe().fields.getMap();

        if (!objFieldMap.containsKey(controllingField) || !objFieldMap.containsKey(dependentField)){
            return objResults;     
        }

        Schema.SObjectField theField = objFieldMap.get(dependentField);
        System.debug('theField --->' +theField);
        Schema.SObjectField ctrlField = objFieldMap.get(controllingField);

        List<Schema.PicklistEntry> contrEntries = ctrlField.getDescribe().getPicklistValues();
        System.debug('contrEntries ----->'+contrEntries);
        List<PicklistEntryWrapper> depEntries = wrapPicklistEntries(theField.getDescribe().getPicklistValues());
        System.debug('depEntries ----> '+depEntries);
        List<String> controllingValues = new List<String>();

        for (Schema.PicklistEntry ple : contrEntries) {
            String label = ple.getLabel();
            objResults.put(label, new List<String>());
            controllingValues.add(label);
        }
        System.debug('controllingValues --->'+controllingValues);

        for (PicklistEntryWrapper plew : depEntries) {
            String label = plew.label;
            String validForBits = base64ToBits(plew.validFor);
            for (Integer i = 0; i < validForBits.length(); i++) {
                String bit = validForBits.mid(i, 1);
                if (bit == '1') {
                    objResults.get(controllingValues.get(i)).add(label);
                }
            }
        }
        system.debug(objResults+'****objResults');
        return objResults;

    }


    public static String decimalToBinary(Integer val) {
        String bits = ''; 
        while (val > 0) {
            Integer remainder = Math.mod(val, 2);
            val = Integer.valueOf(Math.floor(val / 2));
            bits = String.valueOf(remainder) + bits;
        }
        return bits;
    }

    public static String base64ToBits(String validFor) {
        if (String.isEmpty(validFor)) return '';

        String validForBits = '';

        for (Integer i = 0; i < validFor.length(); i++) {
            String thisChar = validFor.mid(i, 1);
            Integer val = base64Chars.indexOf(thisChar);
            String bits = decimalToBinary(val).leftPad(6, '0');
            validForBits += bits;
        }

        return validForBits;
    }

    private static final String base64Chars = '' +
        'ABCDEFGHIJKLMNOPQRSTUVWXYZ' +
        'abcdefghijklmnopqrstuvwxyz' +
        '0123456789+/';


    private static List<PicklistEntryWrapper> wrapPicklistEntries(List<Schema.PicklistEntry> PLEs) {
        return (List<PicklistEntryWrapper>)
            JSON.deserialize(JSON.serialize(PLEs), List<PicklistEntryWrapper>.class);
    }

    public class PicklistEntryWrapper{
        public String active {get;set;}
        public String defaultValue {get;set;}
        public String label {get;set;}
        public String value {get;set;}
        public String validFor {get;set;}
        public PicklistEntryWrapper(){            
        }

    }


}