From: Jonathan Cameron Jonathan.Cameron@huawei.com
[ Upstream commit 55afdd050c063ae4b8dbd566107a030c00d005fd ]
____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: d935eddd2799 ("iio: adc: Add driver for Texas Instruments ADS131E0x ADC family") Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Cc: Tomislav Denis tomislav.denis@avl.com Acked-by: Nuno Sá nuno.sa@analog.com Link: https://lore.kernel.org/r/20220508175712.647246-36-jic23@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/adc/ti-ads131e08.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/ti-ads131e08.c b/drivers/iio/adc/ti-ads131e08.c index 80a09817c119..32237cacc9a3 100644 --- a/drivers/iio/adc/ti-ads131e08.c +++ b/drivers/iio/adc/ti-ads131e08.c @@ -105,7 +105,7 @@ struct ads131e08_state { s64 ts __aligned(8); } tmp_buf;
- u8 tx_buf[3] ____cacheline_aligned; + u8 tx_buf[3] __aligned(IIO_DMA_MINALIGN); /* * Add extra one padding byte to be able to access the last channel * value using u32 pointer