From: Jonathan Cameron Jonathan.Cameron@huawei.com
[ Upstream commit 3637c49ed54632d7c221af718d2d7b1d381d4b6e ]
____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: 7a02ef7907d8 ("iio:dac:ti-dac7311 Add driver for Texas Instrument DAC7311") Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Cc: Charles-Antoine Couret charles-antoine.couret@essensium.com Acked-by: Nuno Sá nuno.sa@analog.com Link: https://lore.kernel.org/r/20220508175712.647246-64-jic23@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/dac/ti-dac7311.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/dac/ti-dac7311.c b/drivers/iio/dac/ti-dac7311.c index e10d17e60ed3..dd0a7b77838d 100644 --- a/drivers/iio/dac/ti-dac7311.c +++ b/drivers/iio/dac/ti-dac7311.c @@ -52,7 +52,7 @@ struct ti_dac_chip { bool powerdown; u8 powerdown_mode; u8 resolution; - u8 buf[2] ____cacheline_aligned; + u8 buf[2] __aligned(IIO_DMA_MINALIGN); };
static u8 ti_dac_get_power(struct ti_dac_chip *ti_dac, bool powerdown)