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| author | Brian Norris <computersforpeace@gmail.com> | 2012-07-13 09:28:24 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-28 10:14:16 -0700 |
| commit | f2a713d25e8b95e065c90af72f461e99427e20f8 (patch) | |
| tree | 557a4cb321242a78f9adaf0fc5801b641b0afe3b /include | |
| parent | 3ba595416b15151d2eaa12578c17cbfd64c06aec (diff) | |
| download | kernel-common-f2a713d25e8b95e065c90af72f461e99427e20f8.tar.gz kernel-common-f2a713d25e8b95e065c90af72f461e99427e20f8.tar.bz2 kernel-common-f2a713d25e8b95e065c90af72f461e99427e20f8.zip | |
mtd: nand: allow NAND_NO_SUBPAGE_WRITE to be set from driver
commit bf7a01bf7987b63b121d572b240c132ec44129c4 upstream.
The NAND_CHIPOPTIONS_MSK has limited utility and is causing real bugs. It
silently masks off at least one flag that might be set by the driver
(NAND_NO_SUBPAGE_WRITE). This breaks the GPMI NAND driver and possibly
others.
Really, as long as driver writers exercise a small amount of care with
NAND_* options, this mask is not necessary at all; it was only here to
prevent certain options from accidentally being set by the driver. But the
original thought turns out to be a bad idea occasionally. Thus, kill it.
Note, this patch fixes some major gpmi-nand breakage.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Tested-by: Huang Shijie <shijie8@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mtd/nand.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 1482340d3d9f..248351344718 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -215,9 +215,6 @@ typedef enum { #define NAND_SUBPAGE_READ(chip) ((chip->ecc.mode == NAND_ECC_SOFT) \ && (chip->page_shift > 9)) -/* Mask to zero out the chip options, which come from the id table */ -#define NAND_CHIPOPTIONS_MSK (0x0000ffff & ~NAND_NO_AUTOINCR) - /* Non chip related options */ /* This option skips the bbt scan during initialization. */ #define NAND_SKIP_BBTSCAN 0x00010000 |