1 /* 2 * Copyright 2015 Stephen Warren 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #ifndef _BUS_ADDR_H 8 #define _BUS_ADDR_H 9 10 #ifdef CONFIG_PHYS_TO_BUS 11 unsigned long phys_to_bus(unsigned long phys); 12 unsigned long bus_to_phys(unsigned long bus); 13 #else 14 static inline unsigned long phys_to_bus(unsigned long phys) 15 { 16 return phys; 17 } 18 19 static inline unsigned long bus_to_phys(unsigned long bus) 20 { 21 return bus; 22 } 23 #endif 24 25 #endif 26