Hi Lucas, Christoph,
After switching ARC to generic dma_noncoherent cache ops
etnaviv driver start failing on dma maping functions because of
dma_mask lack.
So I'm wondering is it valid case to have device which is
DMA capable and doesn't have dma_mask set?
If not, then I guess something like that should work
(at least it works for ARC):
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev at synopsys.com>
---
drivers/gpu/drm/etnaviv/etnaviv_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
index 540b59fb4103..69d80937e021 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
@@ -593,7 +593,7 @@ static int etnaviv_pdev_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct component_match *match = NULL;
- dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+ dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (!dev->platform_data) {
struct device_node *core_node;
--
2.14.4
