diff options
| author |   Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-03-30 17:15:04 +0900 |
|---|---|---|
| committer |   Boris Brezillon <boris.brezillon@free-electrons.com> | 2017-04-25 14:18:37 +0200 |
| commit | 3deb9979c7319bc7846d1aac528a9db85162960a (patch) | |
| tree | 461a23ff5a0761e5940c3b6db229bd85f5dc1082 /include/linux/mtd/nand.h | |
| parent | mtd: nand: denali: allow to override revision number (diff) | |
| download | linux-dev-3deb9979c7319bc7846d1aac528a9db85162960a.tar.xz linux-dev-3deb9979c7319bc7846d1aac528a9db85162960a.zip | |
mtd: nand: allocate aligned buffers if NAND_OWN_BUFFERS is unset
Some NAND controllers are using DMA engine requiring a specific
buffer alignment. The core provides no guarantee on the nand_buffers
pointers, which forces some drivers to allocate their own buffers
and pass the NAND_OWN_BUFFERS flag.
Rework the nand_buffers allocation logic to allocate each buffer
independently. This should make most NAND controllers/DMA engine
happy, and allow us to get rid of these custom buf allocation in
NAND controller drivers.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions