This patch is based on the today's Linus master branch. This patch uses the USB role switch framework to attach/detach USB 3.0 host driver when changes the role via the rcar usb switch driver  and "usb_role" sysfs.
 https://patchwork.kernel.org/patch/10332865/ In the future, I will add using the USB role switch APIs to renesas_usb3 driver. But, for now, since the device connection framework is not good for device tree environment (e.g. calling the API on a driver with device name, but device names on device tree environment will be <base address register>.<device name>). Yoshihiro Shimoda (2): usb: gadget: udc: renesas_usb3: add property "renesas,ignore-id" usb: gadget: udc: renesas_usb3: add devm_of_platform_populate() Documentation/devicetree/bindings/usb/renesas_usb3.txt | 2 ++ drivers/usb/gadget/udc/Kconfig | 1 + drivers/usb/gadget/udc/renesas_usb3.c | 16 ++++++++++++++++ 3 files changed, 19 insertions(+) -- 1.9.1