From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
[ Upstream commit 58e22371539e01c742be5c30295f591a6a17e348 ]
____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: df38a4a72a3b ("iio: dac: add TI DAC5571 family support")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Cc: Sean Nyekjaer <sean.nyekjaer@xxxxxxxxx>
Acked-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220508175712.647246-63-jic23@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/iio/dac/ti-dac5571.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c
index 0b775f943db3..ba68ea1e3455 100644
--- a/drivers/iio/dac/ti-dac5571.c
+++ b/drivers/iio/dac/ti-dac5571.c
@@ -52,7 +52,7 @@ struct dac5571_data {
struct dac5571_spec const *spec;
int (*dac5571_cmd)(struct dac5571_data *data, int channel, u16 val);
int (*dac5571_pwrdwn)(struct dac5571_data *data, int channel, u8 pwrdwn);
- u8 buf[3] ____cacheline_aligned;
+ u8 buf[3] __aligned(IIO_DMA_MINALIGN);
};
#define DAC5571_POWERDOWN(mode) ((mode) + 1)
--
2.35.1
