From 34627f0e768de6af95e3523c29a16cbb95ce3197 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 12 Oct 2007 10:19:26 +0300 Subject: [PATCH] [MTD] [OneNAND] Synchronize block locking operations Ensure OneNAND's block locking operations are synchronized like all other operations. Signed-off-by: Adrian Hunter Acked-by: Kyungmin Park Signed-off-by: David Woodhouse --- drivers/mtd/onenand/onenand_base.c | 18 ++++++++++++++---- 1 file 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; }