usb: typec: ucsi: Add ACPI driver

Driver for ACPI UCSI interface method. This driver replaces
the previous UCSI driver drivers/usb/misc/ucsi.c.

Signed-off-by: Heikki Krogerus <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Heikki Krogerus

drivers/usb/misc/Kconfig

@@ -275,29 +275,3 @@ config USB_CHAOSKEY
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called chaoskey.
-
-config UCSI
-	tristate "USB Type-C Connector System Software Interface driver"
-	depends on ACPI
-	help
-	  UCSI driver is meant to be used as a convenience tool for desktop and
-	  server systems that are not equipped to handle USB in device mode. It
-	  will always select USB host role for the USB Type-C ports on systems
-	  that provide UCSI interface.
-
-	  USB Type-C Connector System Software Interface (UCSI) is a
-	  specification for an interface that allows the Operating System to
-	  control the USB Type-C ports on a system. Things the need controlling
-	  include the USB Data Role (host or device), and when USB Power
-	  Delivery is supported, the Power Role (source or sink). With USB
-	  Type-C connectors, when two dual role capable devices are attached
-	  together, the data role is selected randomly. Therefore it is
-	  important to give the OS a way to select the role. Otherwise the user
-	  would have to unplug and replug in order in order to attempt to swap
-	  the data and power roles.
-
-	  The UCSI specification can be downloaded from:
-	  http://www.intel.com/content/www/us/en/io/universal-serial-bus/usb-type-c-ucsi-spec.html
-
-	  To compile the driver as a module, choose M here: the module will be
-	  called ucsi.

drivers/usb/misc/Makefile

@@ -27,7 +27,6 @@ obj-$(CONFIG_USB_HUB_USB251XB)		+= usb251xb.o
 obj-$(CONFIG_USB_HSIC_USB3503)		+= usb3503.o
 obj-$(CONFIG_USB_HSIC_USB4604)		+= usb4604.o
 obj-$(CONFIG_USB_CHAOSKEY)		+= chaoskey.o
-obj-$(CONFIG_UCSI)			+= ucsi.o
 
 obj-$(CONFIG_USB_SISUSBVGA)		+= sisusbvga/
 obj-$(CONFIG_USB_LINK_LAYER_TEST)	+= lvstest.o