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| author | Adrian Hunter <ext-adrian.hunter@nokia.com> | 2007-10-12 10:19:26 +0300 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2007-10-14 13:37:28 +0100 |
| commit | 34627f0e768de6af95e3523c29a16cbb95ce3197 (patch) | |
| tree | 989b3d125e6d555c773078ff0c01928c3fb7bbd0 /drivers | |
| parent | d773b33972a663cfaf066e966f87922a74088a1e (diff) | |
| download | kernel_samsung_tuna-34627f0e768de6af95e3523c29a16cbb95ce3197.zip kernel_samsung_tuna-34627f0e768de6af95e3523c29a16cbb95ce3197.tar.gz kernel_samsung_tuna-34627f0e768de6af95e3523c29a16cbb95ce3197.tar.bz2 | |
[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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/onenand/onenand_base.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index b2c40f6..f633941 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; } |