From: Baolin Wang <baolin.wang@linaro.org>
To: balbi@kernel.org, gregkh@linuxfoundation.org
Cc: broonie@kernel.org, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org, baolin.wang@linaro.org
Subject: [PATCH] usb: dwc3: host: Set the dma_ops for xhci device
Date: Fri, 3 Jun 2016 19:50:41 +0800 [thread overview]
Message-ID: <080a90edd87ecddc9ef004bd836b77de1fbf210b.1464954454.git.baolin.wang@linaro.org> (raw)
It will be failed when xhci device set the dma mask, if the xhci device
dma_ops is dummy. Thus set the xhci device dma_ops from the parent device.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
---
drivers/usb/dwc3/host.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
index c679f63..7ce55c9 100644
--- a/drivers/usb/dwc3/host.c
+++ b/drivers/usb/dwc3/host.c
@@ -32,6 +32,9 @@ int dwc3_host_init(struct dwc3 *dwc)
return -ENOMEM;
}
+ if (get_dma_ops(&xhci->dev) == get_dma_ops(NULL))
+ xhci->dev.archdata.dma_ops = get_dma_ops(dwc->dev);
+
dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
xhci->dev.parent = dwc->dev;
--
1.7.9.5
next reply other threads:[~2016-06-03 11:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-03 11:50 Baolin Wang [this message]
2016-06-03 12:45 ` kbuild test robot
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