diff --git a/drivers/iio/accel/bma400_core.c b/drivers/iio/accel/bma400_core.c
index 517920400df1..c31bdd9b168e 100644
--- a/drivers/iio/accel/bma400_core.c
+++ b/drivers/iio/accel/bma400_core.c
@@ -93,7 +93,7 @@ struct bma400_data {
 		__le16 buff[3];
 		u8 temperature;
 		s64 ts __aligned(8);
-	} buffer __aligned(IIO_ALIGN);
+	} buffer __aligned(IIO_DMA_MINALIGN);
 	__le16 status;
 	__be16 duration;
 };
diff --git a/drivers/iio/adc/adi-axi-adc.c b/drivers/iio/adc/adi-axi-adc.c
index cf07d522925e..bd6fd0dd04b9 100644
--- a/drivers/iio/adc/adi-axi-adc.c
+++ b/drivers/iio/adc/adi-axi-adc.c
@@ -84,7 +84,8 @@ void *adi_axi_adc_conv_priv(struct adi_axi_adc_conv *conv)
 {
 	struct adi_axi_adc_client *cl = conv_to_client(conv);
 
-	return (char *)cl + ALIGN(sizeof(struct adi_axi_adc_client), IIO_ALIGN);
+	return (char *)cl + ALIGN(sizeof(struct adi_axi_adc_client),
+				  IIO_DMA_MINALIGN);
 }
 EXPORT_SYMBOL_NS_GPL(adi_axi_adc_conv_priv, IIO_ADI_AXI);
 
@@ -169,9 +170,9 @@ static struct adi_axi_adc_conv *adi_axi_adc_conv_register(struct device *dev,
 	struct adi_axi_adc_client *cl;
 	size_t alloc_size;
 
-	alloc_size = ALIGN(sizeof(struct adi_axi_adc_client), IIO_ALIGN);
+	alloc_size = ALIGN(sizeof(struct adi_axi_adc_client), IIO_DMA_MINALIGN);
 	if (sizeof_priv)
-		alloc_size += ALIGN(sizeof_priv, IIO_ALIGN);
+		alloc_size += ALIGN(sizeof_priv, IIO_DMA_MINALIGN);
 
 	cl = kzalloc(alloc_size, GFP_KERNEL);
 	if (!cl)
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index dd42df854a57..0703c8c7c180 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -1630,7 +1630,7 @@ struct iio_dev *iio_device_alloc(struct device *parent, int sizeof_priv)
 
 	alloc_size = sizeof(struct iio_dev_opaque);
 	if (sizeof_priv) {
-		alloc_size = ALIGN(alloc_size, IIO_ALIGN);
+		alloc_size = ALIGN(alloc_size, IIO_DMA_MINALIGN);
 		alloc_size += sizeof_priv;
 	}
 
@@ -1640,7 +1640,7 @@ struct iio_dev *iio_device_alloc(struct device *parent, int sizeof_priv)
 
 	indio_dev = &iio_dev_opaque->indio_dev;
 	indio_dev->priv = (char *)iio_dev_opaque +
-		ALIGN(sizeof(struct iio_dev_opaque), IIO_ALIGN);
+		ALIGN(sizeof(struct iio_dev_opaque), IIO_DMA_MINALIGN);
 
 	indio_dev->dev.parent = parent;
 	indio_dev->dev.type = &iio_device_type;
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index f6ea2ed99457..4e21a82b3756 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -9,6 +9,7 @@
 
 #include <linux/device.h>
 #include <linux/cdev.h>
+#include <linux/slab.h>
 #include <linux/iio/types.h>
 #include <linux/of.h>
 /* IIO TODO LIST */
@@ -708,8 +709,13 @@ static inline void *iio_device_get_drvdata(const struct iio_dev *indio_dev)
 	return dev_get_drvdata(&indio_dev->dev);
 }
 
-/* Can we make this smaller? */
-#define IIO_ALIGN L1_CACHE_BYTES
+/*
+ * Used to ensure the iio_priv() structure is aligned to allow that structure
+ * to in turn include IIO_DMA_MINALIGN'd elements such as buffers which
+ * must not share  cachelines with the rest of the structure, thus making
+ * them safe for use with non-coherent DMA.
+ */
+#define IIO_DMA_MINALIGN ARCH_KMALLOC_MINALIGN
 struct iio_dev *iio_device_alloc(struct device *parent, int sizeof_priv);
 
 /* The information at the returned address is guaranteed to be cacheline aligned */