From: Jonathan Cameron Jonathan.Cameron@huawei.com
[ Upstream commit 8482468b30bdb16d4a764f995d7a63d94fa0cf40 ]
____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: 0bb12606c05f ("iio:dac:ad7293: add support for AD7293") 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/20220508175712.647246-57-jic23@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/dac/ad7293.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/dac/ad7293.c b/drivers/iio/dac/ad7293.c index 59a38ca4c3c7..06f05750d921 100644 --- a/drivers/iio/dac/ad7293.c +++ b/drivers/iio/dac/ad7293.c @@ -144,7 +144,7 @@ struct ad7293_state { struct regulator *reg_avdd; struct regulator *reg_vdrive; u8 page_select; - u8 data[3] ____cacheline_aligned; + u8 data[3] __aligned(IIO_DMA_MINALIGN); };
static int ad7293_page_select(struct ad7293_state *st, unsigned int reg)