Hello, testing on the Sapphire board, which uses the RK3399 SoC, a regression has been found in v4.16-rc2 wrt v4.15.4 regarding the USB3 type-A port: In v4.15.4 it works in USB2-only mode. In v4.16-rc2 it does not work. It has been tested with a USB2 hub with 3 devices connected: a keyboard (USB1.1), a mouse (USB2) and a rtlwifi dongle (USB2). It has also been tested with a USB3-to-SATA converter. This one is not working in v4.15.4 nor in v4.16-rc2. I have also tried the 6-patch series from Enric Balletbo i Serra "[PATCH v3 3/6] phy: rockchip-typec: enable usb3 host during usb3 phy power on" with the same result. During boot, the following message appears a few times: "dwc3: failed to initialize core" The kernel configuration is: https://archlinuxarm.org/packages/aarch64/linux-aarch64-rc/files/config Is that a configuration issue, a bug in the kernel or something else? If it is a configuration issue, what should be changed? If it is a bug, can it be fixed? Regards, Vicente.
