iio: accel: adxl367: Fix alignment for DMA safety

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[ Upstream commit e1f956a804 ]

____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.

Update comment to reflect that DMA safety may require separate
cachelines.

Fixes: cbab791c5e ("iio: accel: add ADXL367 driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Cosmin Tanislav <demonsingur@gmail.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-5-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jonathan Cameron 2022-05-08 18:55:44 +01:00 • committed by Greg Kroah-Hartman

parent f6cc98ecb4

commit ab7828ae67

2 changed files with 6 additions and 4 deletions

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drivers/iio/accel/adxl367.c

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8

drivers/iio/accel/adxl367_spi.c

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