usb: typec: Support the WUSB3801 port controller

WUSB3801 features a configurable port type, accessory detection, and
plug orientation detection. It provides a hardware "ID" pin output for
compatibility with USB 2.0 OTG PHYs. Add a typec class driver for it.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Link: https://lore.kernel.org/r/20220214050118.61015-5-samuel@sholland.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/typec/Kconfig

@@ -100,6 +100,16 @@ config TYPEC_QCOM_PMIC
 	  It will also enable the VBUS output to connected devices when a
 	  DFP connection is made.
 
+config TYPEC_WUSB3801
+	tristate "Willsemi WUSB3801 Type-C port controller driver"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  Say Y or M here if your system has a WUSB3801 Type-C port controller.
+
+	  If you choose to build this driver as a dynamically linked module, the
+	  module will be called wusb3801.ko.
+
 source "drivers/usb/typec/mux/Kconfig"
 
 source "drivers/usb/typec/altmodes/Kconfig"

drivers/usb/typec/Makefile

@@ -10,4 +10,5 @@ obj-$(CONFIG_TYPEC_HD3SS3220)	+= hd3ss3220.o
 obj-$(CONFIG_TYPEC_QCOM_PMIC)	+= qcom-pmic-typec.o
 obj-$(CONFIG_TYPEC_STUSB160X) 	+= stusb160x.o
 obj-$(CONFIG_TYPEC_RT1719)	+= rt1719.o
+obj-$(CONFIG_TYPEC_WUSB3801)	+= wusb3801.o
 obj-$(CONFIG_TYPEC)		+= mux/