Commit a750b5ce authored by Artem Bityutskiy's avatar Artem Bityutskiy Committed by David Woodhouse
Browse files

mtd: introduce mtd_get_fact_prot_info interface 



Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent a2cc5ba0

drivers/mtd/mtdchar.c

+1 −1
Original line number Diff line number Diff line
@@ -925,7 +925,7 @@ static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg) 
		switch (mfi->mode) {

		case MTD_FILE_MODE_OTP_FACTORY:

			if (mtd->get_fact_prot_info)

				ret = mtd->get_fact_prot_info(mtd, buf, 4096);

				ret = mtd_get_fact_prot_info(mtd, buf, 4096);

			break;

		case MTD_FILE_MODE_OTP_USER:

			if (mtd->get_user_prot_info)

drivers/mtd/mtdpart.c

+1 −1
Original line number Diff line number Diff line
@@ -175,7 +175,7 @@ static int part_get_fact_prot_info(struct mtd_info *mtd, struct otp_info *buf, 
		size_t len)

{

	struct mtd_part *part = PART(mtd);

	return part->master->get_fact_prot_info(part->master, buf, len);

	return mtd_get_fact_prot_info(part->master, buf, len);

}



static int part_write(struct mtd_info *mtd, loff_t to, size_t len,

include/linux/mtd/mtd.h

+13 −6
Original line number Diff line number Diff line
@@ -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;