spi: spi-fsl-dspi: Enable extended SPI mode

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Set the XSPI bit for devices configured for XSPI mode (currently LS1021A),
and thereby switch to extended SPI mode, allowing for SPI transfers using
from 4 to 32 bits per word instead of 4 to 16 bits per word.

Signed-off-by: Esben Haabendal <eha@deif.com>
Acked-by: Martin Hundebøll <martin@geanix.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Esben Haabendal 2018-06-20 09:34:42 +02:00 • committed by Mark Brown

parent 35c9d461a4

commit 3e7cc6252d

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drivers/spi/spi-fsl-dspi.c

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