iio: potentiometer: mcp41010: Fix alignment for DMA safety

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[ Upstream commit c5f78f4d21 ]

____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: 092cb71a60 ("iio: potentiometer: Add driver for Microchip MCP41xxx/42xxx")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-84-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jonathan Cameron 2022-05-08 18:57:03 +01:00 • committed by Greg Kroah-Hartman

parent 903e5ff430

commit 51143f6675

1 changed files with 1 additions and 1 deletions

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drivers/iio/potentiometer/mcp41010.c

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