From: Jonathan Cameron Jonathan.Cameron@huawei.com
[ Upstream commit 9d7019e43ee67a48cef63f8f23f002233064d390 ]
____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: 8a80a71d9020 ("iio: adc: Add MAX1241 driver") Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Acked-by: Alexandru Lazar alazar@startmail.com Acked-by: Nuno Sá nuno.sa@analog.com Link: https://lore.kernel.org/r/20220508175712.647246-27-jic23@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/adc/max1241.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/max1241.c b/drivers/iio/adc/max1241.c index a5afd84af58b..a815ad1f6913 100644 --- a/drivers/iio/adc/max1241.c +++ b/drivers/iio/adc/max1241.c @@ -26,7 +26,7 @@ struct max1241 { struct regulator *vref; struct gpio_desc *shutdown;
- __be16 data ____cacheline_aligned; + __be16 data __aligned(IIO_DMA_MINALIGN); };
static const struct iio_chan_spec max1241_channels[] = {