spi: core: add spi_split_transfers_maxsize

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Add spi_split_transfers_maxsize method that splits
spi_transfers transparently into multiple transfers
that are below the given max-size.

This makes use of the spi_res framework via
spi_replace_transfers to allocate/free the extra
transfers as well as reverting back the changes applied
while processing the spi_message.

Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Martin Sperl 2015-12-14 15:20:20 +00:00 • committed by Mark Brown

parent 523baf5a06

commit d9f1212272

2 changed files with 126 additions and 0 deletions

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111

drivers/spi/spi.c

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15

include/linux/spi/spi.h

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