iio: frequency: admv1013: Fix alignment for DMA safety

____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1.  Switch to the updated
IIO_DMA_MINALIGN definition.

Fixes: da35a7b526d9 ("iio: frequency: admv1013: add support for ADMV1013")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Antoniu Miclaus <antoniu.miclaus@analog.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-69-jic23@kernel.org

diff --git a/drivers/iio/frequency/admv1013.c b/drivers/iio/frequency/admv1013.c
index b0e1f6571afbaf84473a6ce4220b961f4dff9c31..ed81672713586ddcc179bc257fa6a15203158f95 100644 (file)
--- a/drivers/iio/frequency/admv1013.c
+++ b/drivers/iio/frequency/admv1013.c
@@ -100,7 +100,7 @@ struct admv1013_state {
        unsigned int            input_mode;
        unsigned int            quad_se_mode;
        bool                    det_en;
-       u8                      data[3] ____cacheline_aligned;
+       u8                      data[3] __aligned(IIO_DMA_MINALIGN);
 };
 
 static int __admv1013_spi_read(struct admv1013_state *st, unsigned int reg,