include/linux/of_iommu.h at v3.7 · tjh.dev/kernel

tjh.dev / kernel

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

kernel / include / linux / of_iommu.h

at v3.7 467 B view raw

 1#ifndef __OF_IOMMU_H
 2#define __OF_IOMMU_H
 3
 4#ifdef CONFIG_OF_IOMMU
 5
 6extern int of_get_dma_window(struct device_node *dn, const char *prefix,
 7			     int index, unsigned long *busno, dma_addr_t *addr,
 8			     size_t *size);
 9
10#else
11
12static inline int of_get_dma_window(struct device_node *dn, const char *prefix,
13			    int index, unsigned long *busno, dma_addr_t *addr,
14			    size_t *size)
15{
16	return -EINVAL;
17}
18
19#endif	/* CONFIG_OF_IOMMU */
20
21#endif /* __OF_IOMMU_H */