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

diff --git a/drivers/iio/accel/bma220_spi.c b/drivers/iio/accel/bma220_spi.c
index 74024d7ce5ac234aa9f1863268163db54eab417b..b6d9ab8e2054e86a379383b9c39a1b993bdb1f36 100644 (file)
--- 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[] = {