1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __OF_IOMMU_H
3 #define __OF_IOMMU_H
4 
5 struct device;
6 struct device_node;
7 struct iommu_ops;
8 
9 #ifdef CONFIG_OF_IOMMU
10 
11 extern int of_iommu_configure(struct device *dev, struct device_node *master_np,
12 			      const u32 *id);
13 
14 extern void of_iommu_get_resv_regions(struct device *dev,
15 				      struct list_head *list);
16 
17 #else
18 
of_iommu_configure(struct device * dev,struct device_node * master_np,const u32 * id)19 static inline int of_iommu_configure(struct device *dev,
20 				     struct device_node *master_np,
21 				     const u32 *id)
22 {
23 	return -ENODEV;
24 }
25 
of_iommu_get_resv_regions(struct device * dev,struct list_head * list)26 static inline void of_iommu_get_resv_regions(struct device *dev,
27 					     struct list_head *list)
28 {
29 }
30 
31 #endif	/* CONFIG_OF_IOMMU */
32 
33 #endif /* __OF_IOMMU_H */
34