[PATCH 09/12] usb: mtu3: set invalid dr_mode as dual-role mode

Chunfeng Yun
2017-09-27T10:58:38Z

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>
---
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