[PATCH v9 4/7] usb: mux: add driver for Intel drcfg controlled port mux

Several Intel PCHs and SOCs have an internal mux that is used to share one USB port between device controller and host controller. The mux is handled through the Dual Role Configuration Register. Signed-off-by: Heikki Krogerus Signed-off-by: Lu Baolu

[PATCH v9 4/7] usb: mux: add driver for Intel drcfg controlled port mux

Several Intel PCHs and SOCs have an internal mux that is used to share one USB port between device controller and host controller. The mux is handled through the Dual Role Configuration Register. Signed-off-by: Heikki Krogerus Signed-off-by: Lu Baolu Signed-off-by: Wu Hao Reviewed-by: Felipe