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iio: potentiometer: mcp41010: Fix alignment for DMA safety
authorJonathan Cameron <Jonathan.Cameron@huawei.com>
Sun, 8 May 2022 17:57:03 +0000 (18:57 +0100)
committerJonathan Cameron <Jonathan.Cameron@huawei.com>
Tue, 14 Jun 2022 10:53:19 +0000 (11:53 +0100)
commitc5f78f4d2168ba21324095b0d46d4353c2eace4d
treece3ebc080173689344d25cffc1bb467f6dd9346dtree | snapshot
parentec1ac1c0e7a14657d729159ccfbea72f434bdaf1commit | diff
iio: potentiometer: mcp41010: 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: 092cb71a604e ("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
drivers/iio/potentiometer/mcp41010.c diff | blob | history
Domain: System / Kernel;