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iio: imu: fxos8700: 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: 84e5ddd5c4 ("iio: imu: Add support for the FXOS8700 IMU")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Robert Jones <rjones@gateworks.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-77-jic23@kernel.org
This commit is contained in:
Jonathan Cameron 2022-05-08 18:56:56 +01:00
parent 3aafe92398
commit c9a8417a13
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/imu/fxos8700_core.c
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@ -167,7 +167,7 @@
struct fxos8700_data {
struct regmap *regmap;
struct iio_trigger *trig;
__be16 buf[FXOS8700_DATA_BUF_SIZE] ____cacheline_aligned;
__be16 buf[FXOS8700_DATA_BUF_SIZE] __aligned(IIO_DMA_MINALIGN);
};
/* Regmap info */