| #ifndef __OF_IOMMU_H | |
| #define __OF_IOMMU_H | |
| #ifdef CONFIG_OF_IOMMU | |
| extern int of_get_dma_window(struct device_node *dn, const char *prefix, | |
| int index, unsigned long *busno, dma_addr_t *addr, | |
| size_t *size); | |
| #else | |
| static inline int of_get_dma_window(struct device_node *dn, const char *prefix, | |
| int index, unsigned long *busno, dma_addr_t *addr, | |
| size_t *size) | |
| { | |
| return -EINVAL; | |
| } | |
| #endif /* CONFIG_OF_IOMMU */ | |
| #endif /* __OF_IOMMU_H */ |