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(parent: da80365) | patch
iio: potentiometer: max5481: Fix alignment for DMA safety
authorJonathan Cameron <Jonathan.Cameron@huawei.com>
Sun, 8 May 2022 17:57:02 +0000 (18:57 +0100)
committerJonathan Cameron <Jonathan.Cameron@huawei.com>
Tue, 14 Jun 2022 10:53:19 +0000 (11:53 +0100)
commitec1ac1c0e7a14657d729159ccfbea72f434bdaf1
tree45c65d740a554cc6e9160883d1773b15e109a0datree | snapshot
parentda803652534271dbb4af0802bd678c759e27e6decommit | diff
iio: potentiometer: max5481: 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.

Fixes: df1fd2de118e ("iio: max5481: Add support for Maxim digital potentiometers")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-83-jic23@kernel.org
drivers/iio/potentiometer/max5481.c diff | blob | history
Domain: System / Kernel;