Commit c32be7f0 authored by Jonathan Cameron's avatar Jonathan Cameron
Browse files

iio: dac: ad5766: 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: fd9373e4 ("iio: dac: ad5766: add driver support for AD5766")
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: default avatarNuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-54-jic23@kernel.org
parent b378722a

drivers/iio/dac/ad5766.c

+1 −1
Original line number Diff line number Diff line
@@ -123,7 +123,7 @@ struct ad5766_state { 
		u32	d32;

		u16	w16[2];

		u8	b8[4];

	} data[3] ____cacheline_aligned;

	} data[3] __aligned(IIO_DMA_MINALIGN);

};



struct ad5766_span_tbl {