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 diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c
  16 index 7ca81f4e78a3..9ff33579b42e 100644
  17 --- a/drivers/usb/mtu3/mtu3_plat.c
  18 +++ b/drivers/usb/mtu3/mtu3_plat.c
  19 @@ -283,10 +283,8 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb)
  20                 return PTR_ERR(ssusb->ippc_base);
  21
  22         ssusb->dr_mode = usb_get_dr_mode(dev);
  23 -       if (ssusb->dr_mode == USB_DR_MODE_UNKNOWN) {
  24 -               dev_err(dev, "dr_mode is error\n");
  25 -               return -EINVAL;
  26 -       }
  27 +       if (ssusb->dr_mode == USB_DR_MODE_UNKNOWN)
  28 +               ssusb->dr_mode = USB_DR_MODE_OTG;
  29
  30         if (ssusb->dr_mode == USB_DR_MODE_PERIPHERAL)
  31                 return 0;
  32 --
  33 2.11.0
  34