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author | Vignesh Raghavendra <vigneshr@ti.com> | 2019-08-06 10:40:39 +0530 |
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committer | Tudor Ambarus <tudor.ambarus@microchip.com> | 2019-08-12 10:53:48 +0300 |
commit | f173f26a4d543fa57e6ed9505bbbbf9bec61f544 (patch) | |
tree | f5fbd6bedb3a629bdde7c11193f737819cabeb12 /drivers/mtd/spi-nor/Kconfig | |
parent | 5f9e832c137075045d15cd6899ab0505cfb2ca4b (diff) | |
download | lwn-f173f26a4d543fa57e6ed9505bbbbf9bec61f544.tar.gz lwn-f173f26a4d543fa57e6ed9505bbbbf9bec61f544.zip |
mtd: spi-nor: always use bounce buffer for register read/writes
spi-mem layer expects all buffers passed to it to be DMA'able. But
spi-nor layer mostly allocates buffers on stack for reading/writing to
registers and therefore are not DMA'able. Introduce bounce buffer to be
used to read/write to registers. This ensures that buffer passed to
spi-mem layer during register read/writes is DMA'able. With this change
nor->cmd-buf is no longer used, so drop it.
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Diffstat (limited to 'drivers/mtd/spi-nor/Kconfig')
0 files changed, 0 insertions, 0 deletions