[PATCH v2 07/92] iio: accel: sca3000: Fix alignment for DMA safety

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From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>

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

The second alignment marking is left in place to avoid doing more than
the simple fix in this patch.

Fixes: ced5c03d360ae ("staging:iio:accel:sca3000 merge files into one.")
Fixes: 152a6a884ae13 ("staging:iio:accel:sca3000 move to hybrid hard / soft buffer design.")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Acked-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
---
 drivers/iio/accel/sca3000.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/accel/sca3000.c b/drivers/iio/accel/sca3000.c
index 83c81072511e..2eecd2ab72dd 100644
--- a/drivers/iio/accel/sca3000.c
+++ b/drivers/iio/accel/sca3000.c
@@ -167,8 +167,8 @@ struct sca3000_state {
 	int				mo_det_use_count;
 	struct mutex			lock;
 	/* Can these share a cacheline ? */
-	u8				rx[384] ____cacheline_aligned;
-	u8				tx[6] ____cacheline_aligned;
+	u8				rx[384] __aligned(IIO_DMA_MINALIGN);
+	u8				tx[6] __aligned(IIO_DMA_MINALIGN);
 };
 
 /**
-- 
2.36.0




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