From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
[ 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@xxxxxxxxxx>
Acked-by: Alexandru Lazar <alazar@xxxxxxxxxxxxx>
Acked-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220508175712.647246-27-jic23@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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[] = {
--
2.35.1
