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usb: mtu3: set invalid dr_mode as dual-role mode

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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>
This commit is contained in:
Chunfeng Yun 2017-10-13 17:10:45 +08:00 committed by Felipe Balbi
parent 6638ec515f
commit dd9d2f3aa3
1 changed files with 2 additions and 4 deletions
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6
drivers/usb/mtu3/mtu3_plat.c
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@ -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;