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mtd: introduce mtd_point interface

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Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Artem Bityutskiy
2011-12-23 17:00:37 +02:00
committed by David Woodhouse
parent 7e1f0dc055
commit d35ea200c0
5 changed files with 18 additions and 12 deletions
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14
include/linux/mtd/mtd.h
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@@ -175,11 +175,8 @@ struct mtd_info {
* wrappers instead.
*/
int (*erase) (struct mtd_info *mtd, struct erase_info *instr);
/* This stuff for eXecute-In-Place */
/* phys is optional and may be set to NULL */
int (*point) (struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, void **virt, resource_size_t *phys);
size_t *retlen, void **virt, resource_size_t *phys);
/* We probably shouldn't allow XIP if the unpoint isn't a NULL */
void (*unpoint) (struct mtd_info *mtd, loff_t from, size_t len);
@@ -283,6 +280,15 @@ static inline int mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
return mtd->erase(mtd, instr);
}
/*
* This stuff for eXecute-In-Place. phys is optional and may be set to NULL.
*/
static inline int mtd_point(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, void **virt, resource_size_t *phys)
{
return mtd->point(mtd, from, len, retlen, virt, phys);
}
static inline struct mtd_info *dev_to_mtd(struct device *dev)
{
return dev ? dev_get_drvdata(dev) : NULL;