From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chunfeng Yun Subject: [PATCH 09/12] usb: mtu3: set invalid dr_mode as dual-role mode Date: Wed, 27 Sep 2017 18:58:38 +0800 Message-ID: <59bcbb013fbb44a8fb594db02bfb5ee59206eb3b.1506509659.git.chunfeng.yun@mediatek.com> References: Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Greg Kroah-Hartman , Felipe Balbi , Rob Herring Cc: Mathias Nyman , Matthias Brugger , Mark Rutland , Ian Campbell , Chunfeng Yun , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org Treat dr_mode of USB_DR_MODE_UNKNOWN as USB_DR_MODE_OTG to enhance functional robustness. Signed-off-by: Chunfeng Yun --- drivers/usb/mtu3/mtu3_plat.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c index 7ca81f4e..9ff3357 100644 --- a/drivers/usb/mtu3/mtu3_plat.c +++ b/drivers/usb/mtu3/mtu3_plat.c @@ -283,10 +283,8 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) return PTR_ERR(ssusb->ippc_base); ssusb->dr_mode = usb_get_dr_mode(dev); - if (ssusb->dr_mode == USB_DR_MODE_UNKNOWN) { - dev_err(dev, "dr_mode is error\n"); - return -EINVAL; - } + if (ssusb->dr_mode == USB_DR_MODE_UNKNOWN) + ssusb->dr_mode = USB_DR_MODE_OTG; if (ssusb->dr_mode == USB_DR_MODE_PERIPHERAL) return 0; -- 1.7.9.5