iio: adc: ad7298: Fix alignment for DMA safety

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[ Upstream commit 585c9772f8 ]

____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1.  Switch to the updated
IIO_DMA_MINALIGN definition.

Fixes: be7fd3b86a ("iio:adc:ad7298 make the tx and rx buffers __be16")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-13-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jonathan Cameron 2022-05-08 18:55:52 +01:00 • committed by Greg Kroah-Hartman

parent 1c7097744e

commit 259dca64b2

1 changed files with 1 additions and 1 deletions

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drivers/iio/adc/ad7298.c

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