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path: root/drivers/mtd/chips/cfi_cmdset_0001.c
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Diffstat (limited to 'drivers/mtd/chips/cfi_cmdset_0001.c')
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0001.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index 62f3ea9de84..2fadb0239ba 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -63,6 +63,8 @@ static int cfi_intelext_erase_varsize(struct mtd_info *, struct erase_info *);
static void cfi_intelext_sync (struct mtd_info *);
static int cfi_intelext_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
+static int cfi_intelext_is_locked(struct mtd_info *mtd, loff_t ofs,
+ uint64_t len);
#ifdef CONFIG_MTD_OTP
static int cfi_intelext_read_fact_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
static int cfi_intelext_read_user_prot_reg (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
@@ -448,6 +450,7 @@ struct mtd_info *cfi_cmdset_0001(struct map_info *map, int primary)
mtd->sync = cfi_intelext_sync;
mtd->lock = cfi_intelext_lock;
mtd->unlock = cfi_intelext_unlock;
+ mtd->is_locked = cfi_intelext_is_locked;
mtd->suspend = cfi_intelext_suspend;
mtd->resume = cfi_intelext_resume;
mtd->flags = MTD_CAP_NORFLASH;
@@ -2139,6 +2142,13 @@ static int cfi_intelext_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
return ret;
}
+static int cfi_intelext_is_locked(struct mtd_info *mtd, loff_t ofs,
+ uint64_t len)
+{
+ return cfi_varsize_frob(mtd, do_getlockstatus_oneblock,
+ ofs, len, NULL) ? 1 : 0;
+}
+
#ifdef CONFIG_MTD_OTP
typedef int (*otp_op_t)(struct map_info *map, struct flchip *chip,