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(parent: d0c167c) | patch
iio: dac: ad5761: Fix alignment for DMA safety
authorJonathan Cameron <Jonathan.Cameron@huawei.com>
Sun, 8 May 2022 17:56:31 +0000 (18:56 +0100)
committerJonathan Cameron <Jonathan.Cameron@huawei.com>
Tue, 14 Jun 2022 10:53:16 +0000 (11:53 +0100)
commit7d12a61187aed57863c41032acbc1fae516d6e49
tree8aabafa03bf14800ab99dba5d75689eb2f0c2062tree | snapshot
parentd0c167ceff2d833ee493dd58164dc87bd36e48aacommit | diff
iio: dac: ad5761: 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: 131497acd88a ("iio: add ad5761 DAC driver")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-52-jic23@kernel.org
drivers/iio/dac/ad5761.c diff | blob | history
Domain: System / Kernel;