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mtd: introduce mtd_unlock interface 

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 19:18:22 +02:00 committed by David Woodhouse
parent 7799f9ac8d
commit b66005cd3e
5 changed files with 10 additions and 5 deletions
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2
drivers/mtd/mtdchar.c
View File

@ -838,7 +838,7 @@ static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg)
if (!mtd->unlock)
ret = -EOPNOTSUPP;
else
ret = mtd->unlock(mtd, einfo.start, einfo.length);
ret = mtd_unlock(mtd, einfo.start, einfo.length);
break;
}

2
drivers/mtd/mtdconcat.c
View File

@ -596,7 +596,7 @@ static int concat_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
size = len;
if (subdev->unlock) {
err = subdev->unlock(subdev, ofs, size);
err = mtd_unlock(subdev, ofs, size);
if (err)
break;
} else

2
drivers/mtd/mtdcore.c
View File

@ -340,7 +340,7 @@ int add_mtd_device(struct mtd_info *mtd)
/* Some chips always power up locked. Unlock them now */
if ((mtd->flags & MTD_WRITEABLE)
&& (mtd->flags & MTD_POWERUP_LOCK) && mtd->unlock) {
if (mtd->unlock(mtd, 0, mtd->size))
if (mtd_unlock(mtd, 0, mtd->size))
printk(KERN_WARNING
"%s: unlock failed, writes may not work\n",
mtd->name);

2
drivers/mtd/mtdpart.c
View File

@ -287,7 +287,7 @@ static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
struct mtd_part *part = PART(mtd);
if ((len + ofs) > mtd->size)
return -EINVAL;
return part->master->unlock(part->master, ofs + part->offset, len);
return mtd_unlock(part->master, ofs + part->offset, len);
}
static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)

7
include/linux/mtd/mtd.h
View File

@ -208,13 +208,13 @@ struct mtd_info {
unsigned long count, loff_t to, size_t *retlen);
void (*sync) (struct mtd_info *mtd);
int (*lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
/* Backing device capabilities for this device
* - provides mmap capabilities
*/
struct backing_dev_info *backing_dev_info;
int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
int (*is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
/* Power Management functions */
@ -389,6 +389,11 @@ static inline int mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
return mtd->lock(mtd, ofs, len);
}
static inline int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
{
return mtd->unlock(mtd, ofs, len);
}
static inline struct mtd_info *dev_to_mtd(struct device *dev)
{
return dev ? dev_get_drvdata(dev) : NULL;