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- #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 */
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