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iio: accel: sca3300: Fix alignment for DMA safety

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[ Upstream commit b1d3a806630dbbf3b4d75a2e850adccf4f4439e7 ]

____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.

Fixes: 9cc9806e22178 ("iio: accel: Add driver for Murata SCA3300 accelerometer")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Tomas Melin <tomas.melin@vaisala.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-9-jic23@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jonathan Cameron 2022-05-08 18:55:48 +01:00 committed by Greg Kroah-Hartman
parent a9c2ffa21e
commit 83278867c4
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/accel/sca3300.c
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@ -115,7 +115,7 @@ struct sca3300_data {
s16 channels[4];
s64 ts __aligned(sizeof(s64));
} scan;
u8 txbuf[4] ____cacheline_aligned;
u8 txbuf[4] __aligned(IIO_DMA_MINALIGN);
u8 rxbuf[4];
};