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authorAdrian Hunter <ext-adrian.hunter@nokia.com>2007-10-12 10:19:26 +0300
committerDavid Woodhouse <dwmw2@infradead.org>2007-10-14 13:37:28 +0100
commit34627f0e768de6af95e3523c29a16cbb95ce3197 (patch)
tree989b3d125e6d555c773078ff0c01928c3fb7bbd0
parentd773b33972a663cfaf066e966f87922a74088a1e (diff)
[MTD] [OneNAND] Synchronize block locking operations
Ensure OneNAND's block locking operations are synchronized like all other operations. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
-rw-r--r--drivers/mtd/onenand/onenand_base.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index b2c40f67db83..f633941011a5 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -1904,7 +1904,12 @@ static int onenand_do_lock_cmd(struct mtd_info *mtd, loff_t ofs, size_t len, int
*/
static int onenand_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
{
- return onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_LOCK);
+ int ret;
+
+ onenand_get_device(mtd, FL_LOCKING);
+ ret = onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_LOCK);
+ onenand_release_device(mtd);
+ return ret;
}
/**
@@ -1917,7 +1922,12 @@ static int onenand_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
*/
static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
{
- return onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_UNLOCK);
+ int ret;
+
+ onenand_get_device(mtd, FL_LOCKING);
+ ret = onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_UNLOCK);
+ onenand_release_device(mtd);
+ return ret;
}
/**
@@ -1979,7 +1989,7 @@ static int onenand_unlock_all(struct mtd_info *mtd)
loff_t ofs = this->chipsize >> 1;
size_t len = mtd->erasesize;
- onenand_unlock(mtd, ofs, len);
+ onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_UNLOCK);
}
onenand_check_lock_status(this);
@@ -1987,7 +1997,7 @@ static int onenand_unlock_all(struct mtd_info *mtd)
return 0;
}
- onenand_unlock(mtd, 0x0, this->chipsize);
+ onenand_do_lock_cmd(mtd, 0x0, this->chipsize, ONENAND_CMD_UNLOCK);
return 0;
}