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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)13 static inline unsigned long phys_to_bus(unsigned long phys)
14 {
15 	return phys;
16 }
17 
bus_to_phys(unsigned long bus)18 static inline unsigned long bus_to_phys(unsigned long bus)
19 {
20 	return bus;
21 }
22 #endif
23 
24 #endif
25