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| author |   Miquel Raynal <miquel.raynal@bootlin.com> | 2020-05-07 12:52:31 +0200 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2020-05-11 09:51:42 +0200 |
| commit | ce8148d7b8f204a18188e3cd7386c8dddbb461a1 (patch) | |
| tree | 49afca727a95a4a4859674b1ee99306324a9a472 /include/linux/mtd | |
| parent | mtd: rawnand: Reorder the nand_chip->options flags (diff) | |
| download | wireguard-linux-ce8148d7b8f204a18188e3cd7386c8dddbb461a1.tar.xz wireguard-linux-ce8148d7b8f204a18188e3cd7386c8dddbb461a1.zip | |
mtd: rawnand: Rename a NAND chip option
NAND controller drivers can set the NAND_USE_BOUNCE_BUFFER flag to a
chip 'option' field. With this flag, the core is responsible of
providing DMA-able buffers.
The current behavior is to not force the use of a bounce buffer when
the core thinks this is not needed. So in the end the name is a bit
misleading, because in theory we will always have a DMA buffer but in
practice it will not always be a bounce buffer.
Rename this flag NAND_USES_DMA to be more accurate.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200507105241.14299-4-miquel.raynal@bootlin.com
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/rawnand.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index e70fea67030b..d1f5c5258e35 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -185,7 +185,7 @@ enum nand_ecc_algo { * This option could be defined by controller drivers to protect against * kmap'ed, vmalloc'ed highmem buffers being passed from upper layers */ -#define NAND_USE_BOUNCE_BUFFER BIT(20) +#define NAND_USES_DMA BIT(20) /* * In case your controller is implementing ->legacy.cmd_ctrl() and is relying |