[PATCH 5/6] usb: dwc3: core: don't access DMA bits directly

[Felipe Balbi <balbif-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

instead of manually copying DMA bits from parent
device, we should let DMA API do its job.

Signed-off-by: Felipe Balbi <felipe.balbi-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
---
 drivers/usb/dwc3/core.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 17fd81447c9f..d601de20e1cd 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -981,11 +981,7 @@ static int dwc3_probe(struct platform_device *pdev)
 
 	spin_lock_init(&dwc->lock);
 
-	if (!dev->dma_mask) {
-		dev->dma_mask = dev->parent->dma_mask;
-		dev->dma_parms = dev->parent->dma_parms;
-		dma_set_coherent_mask(dev, dev->parent->coherent_dma_mask);
-	}
+	dma_coerce_mask_and_coherent(dev, dma_get_mask(dev->parent));
 
 	pm_runtime_enable(dev);
 	pm_runtime_get_sync(dev);
-- 
2.7.0

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