spi: imx: Use correct number of bytes per words

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The SPI core enforces that we always use the next power-of-two number of
bytes to store words. As a result, a 24 bits word will be stored in 4
bytes.

This commit fixes the spi_imx_bytes_per_word function to return the
correct number of bytes.

This also allows to get rid of unnecessary checks in the can_dma
function, since the SPI core validates that we always have a transfer
length that is a multiple of the number of bytes per word.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

...

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Maxime Chevallier 2018-07-17 16:31:52 +02:00 • committed by Mark Brown

parent 2801b2f5fa

commit afb2720814

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GPG key ID: 24D68B725D5487D0

1 changed files with 6 additions and 4 deletions

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drivers/spi/spi-imx.c

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