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-rw-r--r--drivers/gpu/drm/sun4i/sun4i_drv.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 8841dba989ee..6eb1aabdb161 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -7,6 +7,7 @@
*/
#include <linux/component.h>
+#include <linux/dma-mapping.h>
#include <linux/kfifo.h>
#include <linux/module.h>
#include <linux/of_graph.h>
@@ -369,6 +370,13 @@ static int sun4i_drv_probe(struct platform_device *pdev)
INIT_KFIFO(list.fifo);
+ /*
+ * DE2 and DE3 cores actually supports 40-bit addresses, but
+ * driver does not.
+ */
+ dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ dma_set_max_seg_size(&pdev->dev, UINT_MAX);
+
for (i = 0;; i++) {
struct device_node *pipeline = of_parse_phandle(np,
"allwinner,pipelines",