Commit 7df19bd2 authored by Jonathan Cameron's avatar Jonathan Cameron
Browse files

iio: adc: ti-ads124s08: Fix alignment for DMA safety 



____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: e717f8c6 ("iio: adc: Add the TI ads124s08 ADC code")
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: default avatarNuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220508175712.647246-35-jic23@kernel.org
parent 3a828f20

drivers/iio/adc/ti-ads124s08.c

+1 −1
Original line number Diff line number Diff line
@@ -106,7 +106,7 @@ struct ads124s_private { 
	 * timestamp is maintained.

	 */

	u32 buffer[ADS124S08_MAX_CHANNELS + sizeof(s64)/sizeof(u32)] __aligned(8);

	u8 data[5] ____cacheline_aligned;

	u8 data[5] __aligned(IIO_DMA_MINALIGN);

};



#define ADS124S08_CHAN(index)					\