iio: adc: max11100: Fix alignment for DMA safety

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[ Upstream commit 51f30d6314 ]

____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.

Update the comment to include 'may'.

Fixes: a8e7e88df9 ("iio: adc: Add Maxim MAX11100 driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-25-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Jonathan Cameron 2022-05-08 18:56:04 +01:00 • committed by Greg Kroah-Hartman

parent 68427acc93

commit 24c3652d00

1 changed files with 2 additions and 2 deletions

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drivers/iio/adc/max11100.c

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