21 lines
467 B
C
21 lines
467 B
C
#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 */
|