# SPDX-License-Identifier: GPL-2.0
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config TYPEC_UCSI
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tristate "USB Type-C Connector System Software Interface driver"
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depends on !CPU_BIG_ENDIAN
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depends on USB_ROLE_SWITCH || !USB_ROLE_SWITCH
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help
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USB Type-C Connector System Software Interface (UCSI) is a
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specification for an interface that allows the operating system to
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control the USB Type-C ports. On UCSI system the USB Type-C ports
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function autonomously by default, but in order to get the status of
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the ports and support basic operations like role swapping, the driver
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is required. UCSI is available on most of the new Intel based systems
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that are equipped with Embedded Controller and USB Type-C ports.
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UCSI specification does not define the interface method, so depending
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on the platform, ACPI, PCI, I2C, etc. may be used. Therefore this
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driver only provides the core part, and separate drivers are needed
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for every supported interface method.
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The UCSI specification can be downloaded from:
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https://www.intel.com/content/www/us/en/io/universal-serial-bus/usb-type-c-ucsi-spec.html
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To compile the driver as a module, choose M here: the module will be
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called typec_ucsi.
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if TYPEC_UCSI
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config UCSI_CCG
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tristate "UCSI Interface Driver for Cypress CCGx"
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depends on I2C
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help
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This driver enables UCSI support on platforms that expose a
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Cypress CCGx Type-C controller over I2C interface.
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To compile the driver as a module, choose M here: the module will be
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called ucsi_ccg.
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config UCSI_ACPI
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tristate "UCSI ACPI Interface Driver"
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depends on ACPI
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help
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This driver enables UCSI support on platforms that expose UCSI
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interface as ACPI device. On new Intel Atom based platforms starting
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from Broxton SoCs and Core platforms stating from Skylake, UCSI is an
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ACPI enumerated device.
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To compile the driver as a module, choose M here: the module will be
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called ucsi_acpi
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endif
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