target/linux/mediatek/patches-4.14/0111-usb-mtu3-set-invalid-dr_mode-as-dual-role-mode.patch

   1 From e315036cdbf8dad7cff4df9dfe8bcff2eddf2277 Mon Sep 17 00:00:00 2001
   2 From: Chunfeng Yun <chunfeng.yun@mediatek.com>
   3 Date: Fri, 13 Oct 2017 17:10:45 +0800
   4 Subject: [PATCH 111/224] usb: mtu3: set invalid dr_mode as dual-role mode
   5
   6 Treat dr_mode of USB_DR_MODE_UNKNOWN as USB_DR_MODE_OTG to
   7 enhance functional robustness.
   8
   9 Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
  10 Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
  11 ---
  12  drivers/usb/mtu3/mtu3_plat.c | 6 ++----
  13  1 file changed, 2 insertions(+), 4 deletions(-)
  14
  15 --- a/drivers/usb/mtu3/mtu3_plat.c
  16 +++ b/drivers/usb/mtu3/mtu3_plat.c
  17 @@ -283,10 +283,8 @@ static int get_ssusb_rscs(struct platfor
  18                 return PTR_ERR(ssusb->ippc_base);
  19
  20         ssusb->dr_mode = usb_get_dr_mode(dev);
  21 -       if (ssusb->dr_mode == USB_DR_MODE_UNKNOWN) {
  22 -               dev_err(dev, "dr_mode is error\n");
  23 -               return -EINVAL;
  24 -       }
  25 +       if (ssusb->dr_mode == USB_DR_MODE_UNKNOWN)
  26 +               ssusb->dr_mode = USB_DR_MODE_OTG;
  27
  28         if (ssusb->dr_mode == USB_DR_MODE_PERIPHERAL)
  29                 return 0;