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authorChunfeng Yun <chunfeng.yun@mediatek.com>2017-10-13 17:10:45 +0800
committerFelipe Balbi <felipe.balbi@linux.intel.com>2017-10-19 10:38:12 +0300
commitdd9d2f3aa3f8908fc3133041ccba45792549f25c (patch)
tree4d37538a7e19f8f7abff64346edce553ea8fe3b4 /drivers/usb/mtu3
parent6638ec515f2cce73ba996a725fe351fd643e27c8 (diff)
downloadlinux-dd9d2f3aa3f8908fc3133041ccba45792549f25c.tar.bz2
usb: mtu3: set invalid dr_mode as dual-role mode
Treat dr_mode of USB_DR_MODE_UNKNOWN as USB_DR_MODE_OTG to enhance functional robustness. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/mtu3')
-rw-r--r--drivers/usb/mtu3/mtu3_plat.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c
index 7ca81f4e78a3..9ff33579b42e 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;