usb: typec: rt1719: Add support for Richtek RT1719

Richtek RT1719 is a sink-only Type-C PD controller it complies with
latest USB Type-C and PD standards. It integrates the physical layer of
USB power delivery protocol to allow up to 100W of power.

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/1644421362-32104-3-git-send-email-u0084500@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/typec/Kconfig

@@ -52,6 +52,18 @@ source "drivers/usb/typec/ucsi/Kconfig"
 
 source "drivers/usb/typec/tipd/Kconfig"
 
+config TYPEC_RT1719
+	tristate "Richtek RT1719 Sink Only Type-C controller driver"
+	depends on USB_ROLE_SWITCH || !USB_ROLE_SWITCH
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  Say Y or M here if your system has Richtek RT1719 sink only
+	  Type-C port controller driver.
+
+	  If you choose to build this driver as a dynamically linked module, the
+	  module will be called rt1719.ko
+
 config TYPEC_HD3SS3220
 	tristate "TI HD3SS3220 Type-C DRP Port controller driver"
 	depends on I2C

drivers/usb/typec/Makefile

@@ -9,4 +9,5 @@ obj-$(CONFIG_TYPEC_TPS6598X)	+= tipd/
 obj-$(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)		+= mux/