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mtd: introduce mtd_get_fact_prot_info 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 18:33:28 +02:00
committed by David Woodhouse
parent a2cc5ba075
commit a750b5ce5e
3 changed files with 15 additions and 8 deletions
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19
include/linux/mtd/mtd.h
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@@ -192,18 +192,14 @@ struct mtd_info {
struct mtd_oob_ops *ops);
int (*write_oob) (struct mtd_info *mtd, loff_t to,
struct mtd_oob_ops *ops);
int (*get_fact_prot_info) (struct mtd_info *mtd, struct otp_info *buf,
size_t len);
/* Backing device capabilities for this device
* - provides mmap capabilities
*/
struct backing_dev_info *backing_dev_info;
/*
* Methods to access the protection register area, present in some
* flash devices. The user data is one time programmable but the
* factory data is read only.
*/
int (*get_fact_prot_info) (struct mtd_info *mtd, struct otp_info *buf, size_t len);
int (*read_fact_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
int (*get_user_prot_info) (struct mtd_info *mtd, struct otp_info *buf, size_t len);
int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
@@ -330,6 +326,17 @@ static inline int mtd_write_oob(struct mtd_info *mtd, loff_t to,
return mtd->write_oob(mtd, to, ops);
}
/*
* Method to access the protection register area, present in some flash
* devices. The user data is one time programmable but the factory data is read
* only.
*/
static inline int mtd_get_fact_prot_info(struct mtd_info *mtd,
struct otp_info *buf, size_t len)
{
return mtd->get_fact_prot_info(mtd, buf, len);
}
static inline struct mtd_info *dev_to_mtd(struct device *dev)
{
return dev ? dev_get_drvdata(dev) : NULL;