iio: accel: adxl313: Fix alignment for DMA safety

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

Fixes: 636d44633039 ("iio: accel: Add driver support for ADXL313")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-3-jic23@kernel.org

diff --git a/drivers/iio/accel/adxl313_core.c b/drivers/iio/accel/adxl313_core.c
index 9e4193e..afeef77 100644 (file)
--- a/drivers/iio/accel/adxl313_core.c
+++ b/drivers/iio/accel/adxl313_core.c
@@ -46,7 +46,7 @@ EXPORT_SYMBOL_NS_GPL(adxl313_writable_regs_table, IIO_ADXL313);
 struct adxl313_data {
        struct regmap   *regmap;
        struct mutex    lock; /* lock to protect transf_buf */
-       __le16          transf_buf ____cacheline_aligned;
+       __le16          transf_buf __aligned(IIO_DMA_MINALIGN);
 };
 
 static const int adxl313_odr_freqs[][2] = {