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