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| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-05-08 18:55:45 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-06-14 11:53:11 +0100 |
| commit | 38e71240e2ff97184cdcdaf877cf62d3f16678e2 (patch) | |
| tree | 5fa6f234073cd650c0fa2306521f52635d3d2cf0 /drivers/iio/accel | |
| parent | e1f956a804df9074fb5de557563d153ae25252e7 (diff) | |
| download | lwn-38e71240e2ff97184cdcdaf877cf62d3f16678e2.tar.gz lwn-38e71240e2ff97184cdcdaf877cf62d3f16678e2.zip | |
iio: accel: bma220: Fix alignment for DMA safety
____cacheline_aligned is insufficient guarantee for non-coherent DMA.
Switch to the updated IIO_DMA_MINALIGN definition.
Fixes: bf2a5600a3ebc ("iio: accel: Add support for Bosch BMA220")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-6-jic23@kernel.org
Diffstat (limited to 'drivers/iio/accel')
| -rw-r--r-- | drivers/iio/accel/bma220_spi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/accel/bma220_spi.c b/drivers/iio/accel/bma220_spi.c index 74024d7ce5ac..b6d9ab8e2054 100644 --- a/drivers/iio/accel/bma220_spi.c +++ b/drivers/iio/accel/bma220_spi.c @@ -67,7 +67,7 @@ struct bma220_data { /* Ensure timestamp is naturally aligned. */ s64 timestamp __aligned(8); } scan; - u8 tx_buf[2] ____cacheline_aligned; + u8 tx_buf[2] __aligned(IIO_DMA_MINALIGN); }; static const struct iio_chan_spec bma220_channels[] = { |