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iio: frequency: admv1013: Fix alignment for DMA safety

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[ Upstream commit b3f3f8d264b9be0cb3e50e89e3f8789a948a43bb ]

____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: da35a7b526d9 ("iio: frequency: admv1013: add support for ADMV1013")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Antoniu Miclaus <antoniu.miclaus@analog.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-69-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jonathan Cameron 2022-05-08 18:56:48 +01:00 committed by Greg Kroah-Hartman
parent ce119d7b52
commit 817d7b7436
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/frequency/admv1013.c
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@ -100,7 +100,7 @@ struct admv1013_state {
unsigned int input_mode;
unsigned int quad_se_mode;
bool det_en;
u8 data[3] ____cacheline_aligned;
u8 data[3] __aligned(IIO_DMA_MINALIGN);
};
static int __admv1013_spi_read(struct admv1013_state *st, unsigned int reg,