tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1
2menuconfig TYPEC
3 tristate "USB Type-C Support"
4 help
5 USB Type-C Specification defines a cable and connector for USB where
6 only one type of plug is supported on both ends, i.e. there will not
7 be Type-A plug on one end of the cable and Type-B plug on the other.
8 Determination of the host-to-device relationship happens through a
9 specific Configuration Channel (CC) which goes through the USB Type-C
10 cable. The Configuration Channel may also be used to detect optional
11 Accessory Modes - Analog Audio and Debug - and if USB Power Delivery
12 is supported, the Alternate Modes, where the connector is used for
13 something else then USB communication.
14
15 USB Power Delivery Specification defines a protocol that can be used
16 to negotiate the voltage and current levels with the connected
17 partners. USB Power Delivery allows higher voltages then the normal
18 5V, up to 20V, and current up to 5A over the cable. The USB Power
19 Delivery protocol is also used to negotiate the optional Alternate
20 Modes when they are supported. USB Power Delivery does not depend on
21 USB Type-C connector, however it is mostly used together with USB
22 Type-C connectors.
23
24 USB Type-C and USB Power Delivery Specifications define a set of state
25 machines that need to be implemented in either software or firmware.
26 Simple USB Type-C PHYs, for example USB Type-C Port Controller
27 Interface Specification compliant "Port Controllers" need the state
28 machines to be handled in the OS, but stand-alone USB Type-C and Power
29 Delivery controllers handle the state machines inside their firmware.
30 The USB Type-C and Power Delivery controllers usually function
31 autonomously, and do not necessarily require drivers.
32
33 Enable this configurations option if you have USB Type-C connectors on
34 your system and 1) you know your USB Type-C hardware requires OS
35 control (a driver) to function, or 2) if you need to be able to read
36 the status of the USB Type-C ports in your system, or 3) if you need
37 to be able to swap the power role (decide are you supplying or
38 consuming power over the cable) or data role (host or device) when
39 both roles are supported.
40
41 For more information, see the kernel documentation for USB Type-C
42 Connector Class API (Documentation/driver-api/usb/typec.rst)
43 <https://www.kernel.org/doc/html/latest/driver-api/usb/typec.html>
44 and ABI (Documentation/ABI/testing/sysfs-class-typec).
45
46if TYPEC
47
48source "drivers/usb/typec/tcpm/Kconfig"
49
50source "drivers/usb/typec/ucsi/Kconfig"
51
52config TYPEC_TPS6598X
53 tristate "TI TPS6598x USB Power Delivery controller driver"
54 depends on I2C
55 help
56 Say Y or M here if your system has TI TPS65982 or TPS65983 USB Power
57 Delivery controller.
58
59 If you choose to build this driver as a dynamically linked module, the
60 module will be called tps6598x.ko.
61
62source "drivers/usb/typec/mux/Kconfig"
63
64source "drivers/usb/typec/altmodes/Kconfig"
65
66endif # TYPEC