1 # SPDX-License-Identifier: GPL-2.0
4 tristate "USB Type-C Connector System Software Interface driver"
5 depends on !CPU_BIG_ENDIAN
6 depends on USB_ROLE_SWITCH || !USB_ROLE_SWITCH
8 USB Type-C Connector System Software Interface (UCSI) is a
9 specification for an interface that allows the operating system to
10 control the USB Type-C ports. On UCSI system the USB Type-C ports
11 function autonomously by default, but in order to get the status of
12 the ports and support basic operations like role swapping, the driver
13 is required. UCSI is available on most of the new Intel based systems
14 that are equipped with Embedded Controller and USB Type-C ports.
16 UCSI specification does not define the interface method, so depending
17 on the platform, ACPI, PCI, I2C, etc. may be used. Therefore this
18 driver only provides the core part, and separate drivers are needed
19 for every supported interface method.
21 The UCSI specification can be downloaded from:
22 https://www.intel.com/content/www/us/en/io/universal-serial-bus/usb-type-c-ucsi-spec.html
24 To compile the driver as a module, choose M here: the module will be
30 tristate "UCSI Interface Driver for Cypress CCGx"
33 This driver enables UCSI support on platforms that expose a
34 Cypress CCGx Type-C controller over I2C interface.
36 To compile the driver as a module, choose M here: the module will be
40 tristate "UCSI ACPI Interface Driver"
43 This driver enables UCSI support on platforms that expose UCSI
44 interface as ACPI device. On new Intel Atom based platforms starting
45 from Broxton SoCs and Core platforms stating from Skylake, UCSI is an
46 ACPI enumerated device.
48 To compile the driver as a module, choose M here: the module will be
52 tristate "UCSI Interface Driver for STM32G0"
55 This driver enables UCSI support on platforms that expose a STM32G0
56 Type-C controller over I2C interface.
58 To compile the driver as a module, choose M here: the module will be
61 config UCSI_PMIC_GLINK
62 tristate "UCSI Qualcomm PMIC GLINK Interface Driver"
63 depends on QCOM_PMIC_GLINK
65 This driver enables UCSI support on platforms that expose UCSI
66 interface as PMIC GLINK device.
68 To compile the driver as a module, choose M here: the module will be