]> git.baikalelectronics.ru Git - kernel.git/commit
iio: dac: ad5755: Fix alignment for DMA safety
authorJonathan Cameron <Jonathan.Cameron@huawei.com>
Sun, 8 May 2022 17:56:30 +0000 (18:56 +0100)
committerJonathan Cameron <Jonathan.Cameron@huawei.com>
Tue, 14 Jun 2022 10:53:16 +0000 (11:53 +0100)
commit62ddd0a6a43c9c874e64074dca38db0d97446f53
tree4c600a67fbc1f6025bcd68cb8d2ee237c662d3f2
parent095710f7334153f915ae50539703dd1e0e0a05c1
iio: dac: ad5755: Fix alignment for DMA safety

____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: cd70c742886b ("iio:dac: Add ad5755 driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-51-jic23@kernel.org
drivers/iio/dac/ad5755.c