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Commit a7c42106 authored by Heikki Krogerus's avatar Heikki Krogerus Committed by Greg Kroah-Hartman
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usb: add user selectable option for the whole USB Type-C Support 



It is more clear from user perspective to wrap the whole USB
Type-C support under a single option that the user can
select, then it is to always ask the user for every USB
Type-C and USB Power Delivery driver separately.

Reported-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: default avatarHeikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4fbd8d19

drivers/usb/typec/Kconfig

+46 −8
Original line number Diff line number Diff line 


menu "USB Power Delivery and Type-C drivers"

menuconfig TYPEC

	tristate "USB Type-C Support"

	help

	  USB Type-C Specification defines a cable and connector for USB where

	  only one type of plug is supported on both ends, i.e. there will not

	  be Type-A plug on one end of the cable and Type-B plug on the other.

	  Determination of the host-to-device relationship happens through a

	  specific Configuration Channel (CC) which goes through the USB Type-C

	  cable. The Configuration Channel may also be used to detect optional

	  Accessory Modes - Analog Audio and Debug - and if USB Power Delivery

	  is supported, the Alternate Modes, where the connector is used for

	  something else then USB communication.



	  USB Power Delivery Specification defines a protocol that can be used

	  to negotiate the voltage and current levels with the connected

	  partners. USB Power Delivery allows higher voltages then the normal

	  5V, up to 20V, and current up to 5A over the cable. The USB Power

	  Delivery protocol is also used to negotiate the optional Alternate

	  Modes when they are supported. USB Power Delivery does not depend on

	  USB Type-C connector, however it is mostly used together with USB

	  Type-C connectors.



	  USB Type-C and USB Power Delivery Specifications define a set of state

	  machines that need to be implemented in either software or firmware.

	  Simple USB Type-C PHYs, for example USB Type-C Port Controller

	  Interface Specification compliant "Port Controllers" need the state

	  machines to be handled in the OS, but stand-alone USB Type-C and Power

	  Delivery controllers handle the state machines inside their firmware.

	  The USB Type-C and Power Delivery controllers usually function

	  autonomously, and do not necessarily require drivers.



	  Enable this configurations option if you have USB Type-C connectors on

	  your system and 1) you know your USB Type-C hardware requires OS

	  control (a driver) to function, or 2) if you need to be able to read

	  the status of the USB Type-C ports in your system, or 3) if you need

	  to be able to swap the power role (decide are you supplying or

	  consuming power over the cable) or data role (host or device) when

	  both roles are supported.



	  For more information, see the kernel documentation for USB Type-C

	  Connector Class API (Documentation/driver-api/usb/typec.rst)

	  <https://www.kernel.org/doc/html/latest/driver-api/usb/typec.html>

	  and ABI (Documentation/ABI/testing/sysfs-class-typec).



config TYPEC

	tristate

if TYPEC



config TYPEC_TCPM

	tristate "USB Type-C Port Controller Manager"

	depends on USB

	select TYPEC

	help

	  The Type-C Port Controller Manager provides a USB PD and USB Type-C

	  state machine for use with Type-C Port Controllers.
@@ -22,7 +62,6 @@ config TYPEC_WCOVE 
	depends on INTEL_SOC_PMIC

	depends on INTEL_PMC_IPC

	depends on BXT_WC_PMIC_OPREGION

	select TYPEC

	help

	  This driver adds support for USB Type-C detection on Intel Broxton

	  platforms that have Intel Whiskey Cove PMIC. The driver can detect the
@@ -31,14 +70,13 @@ config TYPEC_WCOVE 
	  To compile this driver as module, choose M here: the module will be

	  called typec_wcove



endif

endif # TYPEC_TCPM



source "drivers/usb/typec/ucsi/Kconfig"



config TYPEC_TPS6598X

	tristate "TI TPS6598x USB Power Delivery controller driver"

	depends on I2C

	select TYPEC

	help

	  Say Y or M here if your system has TI TPS65982 or TPS65983 USB Power

	  Delivery controller.
@@ -46,4 +84,4 @@ config TYPEC_TPS6598X 
	  If you choose to build this driver as a dynamically linked module, the

	  module will be called tps6598x.ko.



endmenu
 
endif # TYPEC

drivers/usb/typec/ucsi/Kconfig

+0 −1
Original line number Diff line number Diff line 
config TYPEC_UCSI

	tristate "USB Type-C Connector System Software Interface driver"

	depends on !CPU_BIG_ENDIAN

	select TYPEC

	help

	  USB Type-C Connector System Software Interface (UCSI) is a

	  specification for an interface that allows the operating system to