Commit b3f3f8d2 authored by Jonathan Cameron's avatar Jonathan Cameron
Browse files

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: da35a7b5 ("iio: frequency: admv1013: add support for ADMV1013")
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Antoniu Miclaus <antoniu.miclaus@analog.com>
Acked-by: default avatarNuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-69-jic23@kernel.org
parent 0bb5675b

drivers/iio/frequency/admv1013.c

+1 −1
Original line number Diff line number Diff line
@@ -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,