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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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