mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-29 07:34:06 +08:00
b0c560f7d8
Now that no more drivers rely on arbitrary early initialisation via an of_iommu_init_fn hook, let's clean up the redundant remnants. The IOMMU_OF_DECLARE() macro needs to remain for now, as the probe-deferral mechanism has no other nice way to detect built-in drivers before they have registered themselves, such that it can make the right decision. Reviewed-by: Sricharan R <sricharan@codeaurora.org> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
40 lines
947 B
C
40 lines
947 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __OF_IOMMU_H
|
|
#define __OF_IOMMU_H
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/iommu.h>
|
|
#include <linux/of.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);
|
|
|
|
extern const struct iommu_ops *of_iommu_configure(struct device *dev,
|
|
struct device_node *master_np);
|
|
|
|
#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;
|
|
}
|
|
|
|
static inline const struct iommu_ops *of_iommu_configure(struct device *dev,
|
|
struct device_node *master_np)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
#endif /* CONFIG_OF_IOMMU */
|
|
|
|
extern struct of_device_id __iommu_of_table;
|
|
|
|
#define IOMMU_OF_DECLARE(name, compat) OF_DECLARE_1(iommu, name, compat, NULL)
|
|
|
|
#endif /* __OF_IOMMU_H */
|