From: Jonathan Cameron Jonathan.Cameron@huawei.com
[ Upstream commit 848847702bd10bf0bf547e38adc44c14e9742784 ]
Partial fix for this driver as a second instance was introduced in a later patch.
____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: a095fadb443b ("iio: imu: inv_icm42600: add gyroscope IIO device") Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Acked-by: Jean-Baptiste Maneyrol jean-baptiste.maneyrol@tdk.com Acked-by: Nuno Sá nuno.sa@analog.com Link: https://lore.kernel.org/r/20220508175712.647246-78-jic23@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/imu/inv_icm42600/inv_icm42600.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/imu/inv_icm42600/inv_icm42600.h b/drivers/iio/imu/inv_icm42600/inv_icm42600.h index 995a9dc06521..3d91469beccb 100644 --- a/drivers/iio/imu/inv_icm42600/inv_icm42600.h +++ b/drivers/iio/imu/inv_icm42600/inv_icm42600.h @@ -141,7 +141,7 @@ struct inv_icm42600_state { struct inv_icm42600_suspended suspended; struct iio_dev *indio_gyro; struct iio_dev *indio_accel; - uint8_t buffer[2] ____cacheline_aligned; + uint8_t buffer[2] __aligned(IIO_DMA_MINALIGN); struct inv_icm42600_fifo fifo; struct { int64_t gyro;