From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
____cacheline_aligned is an insufficient guarantee for non-coherent DMA
on platforms with 128 byte cachelines above L1. Switch to the updated
IIO_ALIGN definition.
Fixes: d03a74bfacce ("iio: potentiometer: Add driver support for AD5110")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Cc: Mugilraj Dhavachelvan <dmugil2000@xxxxxxxxx>
---
drivers/iio/potentiometer/ad5110.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/potentiometer/ad5110.c b/drivers/iio/potentiometer/ad5110.c
index d4eeedae56e5..29f9a9037077 100644
--- a/drivers/iio/potentiometer/ad5110.c
+++ b/drivers/iio/potentiometer/ad5110.c
@@ -63,10 +63,10 @@ struct ad5110_data {
struct mutex lock;
const struct ad5110_cfg *cfg;
/*
- * DMA (thus cache coherency maintenance) requires the
- * transfer buffers to live in their own cache lines.
+ * DMA (thus cache coherency maintenance) may require the
+ * transfer buffers live in their own cache lines.
*/
- u8 buf[2] ____cacheline_aligned;
+ u8 buf[2] __aligned(IIO_ALIGN);
};
static const struct iio_chan_spec ad5110_channels[] = {
--
2.36.0
