1 # SPDX-License-Identifier: GPL-2.0
4 tristate "USB Type-C Support"
6 USB Type-C Specification defines a cable and connector for USB where
7 only one type of plug is supported on both ends, i.e. there will not
8 be Type-A plug on one end of the cable and Type-B plug on the other.
9 Determination of the host-to-device relationship happens through a
10 specific Configuration Channel (CC) which goes through the USB Type-C
11 cable. The Configuration Channel may also be used to detect optional
12 Accessory Modes - Analog Audio and Debug - and if USB Power Delivery
13 is supported, the Alternate Modes, where the connector is used for
14 something else then USB communication.
16 USB Power Delivery Specification defines a protocol that can be used
17 to negotiate the voltage and current levels with the connected
18 partners. USB Power Delivery allows higher voltages then the normal
19 5V, up to 20V, and current up to 5A over the cable. The USB Power
20 Delivery protocol is also used to negotiate the optional Alternate
21 Modes when they are supported. USB Power Delivery does not depend on
22 USB Type-C connector, however it is mostly used together with USB
25 USB Type-C and USB Power Delivery Specifications define a set of state
26 machines that need to be implemented in either software or firmware.
27 Simple USB Type-C PHYs, for example USB Type-C Port Controller
28 Interface Specification compliant "Port Controllers" need the state
29 machines to be handled in the OS, but stand-alone USB Type-C and Power
30 Delivery controllers handle the state machines inside their firmware.
31 The USB Type-C and Power Delivery controllers usually function
32 autonomously, and do not necessarily require drivers.
34 Enable this configurations option if you have USB Type-C connectors on
35 your system and 1) you know your USB Type-C hardware requires OS
36 control (a driver) to function, or 2) if you need to be able to read
37 the status of the USB Type-C ports in your system, or 3) if you need
38 to be able to swap the power role (decide are you supplying or
39 consuming power over the cable) or data role (host or device) when
40 both roles are supported.
42 For more information, see the kernel documentation for USB Type-C
43 Connector Class API (Documentation/driver-api/usb/typec.rst)
44 <https://www.kernel.org/doc/html/latest/driver-api/usb/typec.html>
45 and ABI (Documentation/ABI/testing/sysfs-class-typec).
49 source "drivers/usb/typec/tcpm/Kconfig"
51 source "drivers/usb/typec/ucsi/Kconfig"
53 config TYPEC_HD3SS3220
54 tristate "TI HD3SS3220 Type-C DRP Port controller driver"
56 depends on USB_ROLE_SWITCH
58 Say Y or M here if your system has TI HD3SS3220 Type-C DRP Port
61 If you choose to build this driver as a dynamically linked module, the
62 module will be called hd3ss3220.ko.
65 tristate "TI TPS6598x USB Power Delivery controller driver"
69 Say Y or M here if your system has TI TPS65982 or TPS65983 USB Power
72 If you choose to build this driver as a dynamically linked module, the
73 module will be called tps6598x.ko.
75 source "drivers/usb/typec/mux/Kconfig"
77 source "drivers/usb/typec/altmodes/Kconfig"