From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932128AbcFCLvT (ORCPT ); Fri, 3 Jun 2016 07:51:19 -0400 Received: from mail-pa0-f53.google.com ([209.85.220.53]:36439 "EHLO mail-pa0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751894AbcFCLvR (ORCPT ); Fri, 3 Jun 2016 07:51:17 -0400 From: Baolin Wang 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 Message-Id: <080a90edd87ecddc9ef004bd836b77de1fbf210b.1464954454.git.baolin.wang@linaro.org> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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