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iio: gyro: adis16080: 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 tag is inaccurate but unlikely anyone will backport this
beyond that point so I haven't chased the history futher than 2013.

Fixes: 3c80372dae ("staging:iio:adis16080: be16 cleanups")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-73-jic23@kernel.org
This commit is contained in:
Jonathan Cameron 2022-05-08 18:56:52 +01:00
parent 9a5b11884c
commit ae6eeb5349
1 changed files with 1 additions and 1 deletions
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drivers/iio/gyro/adis16080.c
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@ -45,7 +45,7 @@ struct adis16080_state {
const struct adis16080_chip_info *info;
struct mutex lock;
__be16 buf ____cacheline_aligned;
__be16 buf __aligned(IIO_DMA_MINALIGN);
};
static int adis16080_read_sample(struct iio_dev *indio_dev,