diff options
Diffstat (limited to 'include/linux/of_iommu.h')
| -rw-r--r-- | include/linux/of_iommu.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/of_iommu.h b/include/linux/of_iommu.h new file mode 100644 index 00000000000..51a560f34bc --- /dev/null +++ b/include/linux/of_iommu.h @@ -0,0 +1,21 @@ +#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 */ |