spi: spi-mem: Add SPI_MEM_NO_DATA to the spi_mem_data_dir enum

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When defining spi_mem_op templates we don't necessarily know the size
that will be passed when the template is actually used, and basing the
supports_op() check on op->data.nbytes to know whether there will be
data transferred for a specific operation is this not possible.

Add SPI_MEM_NO_DATA to the spi_mem_data_dir enum so that we can base
our checks on op->data.dir instead of op->data.nbytes.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Boris Brezillon 2018-11-06 17:05:31 +01:00 • committed by Mark Brown

parent 6afe76a672

commit 0ebb261a0b

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2 changed files with 3 additions and 1 deletions

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drivers/spi/spi-mem.c

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include/linux/spi/spi-mem.h

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