static inline int pruss_cfg_get_gpmux(struct pruss *pruss,
                                      enum pruss_pru_id pru_id, u8 *mux)
 {
-       return ERR_PTR(-EOPNOTSUPP);
+       return -EOPNOTSUPP;
 }
 
 static inline int pruss_cfg_set_gpmux(struct pruss *pruss,
                                      enum pruss_pru_id pru_id, u8 mux)
 {
-       return ERR_PTR(-EOPNOTSUPP);
+       return -EOPNOTSUPP;
 }
 
 static inline int pruss_cfg_gpimode(struct pruss *pruss,
                                    enum pruss_pru_id pru_id,
                                    enum pruss_gpi_mode mode)
 {
-       return ERR_PTR(-EOPNOTSUPP);
+       return -EOPNOTSUPP;
 }
 
 static inline int pruss_cfg_miirt_enable(struct pruss *pruss, bool enable)
 {
-       return ERR_PTR(-EOPNOTSUPP);
+       return -EOPNOTSUPP;
 }
 
 static inline int pruss_cfg_xfr_enable(struct pruss *pruss,
                                       enum pru_type pru_type,
-                                      bool enable);
+                                      bool enable)
 {
-       return ERR_PTR(-EOPNOTSUPP);
+       return -EOPNOTSUPP;
 }
 
 #endif /* CONFIG_TI_PRUSS */