spi: expose master transfer size limitation.

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On some SPI controllers it is not feasible to transfer arbitrary amount
of data at once.

When the limit on transfer size is a few kilobytes at least it makes
sense to use the SPI hardware rather than reverting to gpio driver.

The protocol drivers need a way to check that they do not sent overly
long messages, though.

Signed-off-by: Michal Suchanek <hramrach@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Michal Suchanek 2015-12-02 10:38:21 +00:00 • committed by Mark Brown

parent 8005c49d9a

commit 4acad4aae1

1 changed files with 15 additions and 0 deletions

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include/linux/spi/spi.h

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