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- # SPDX-License-Identifier: GPL-2.0-only
- menu "ARM System Control and Management Interface Protocol"
- config ARM_SCMI_PROTOCOL
- tristate "ARM System Control and Management Interface (SCMI) Message Protocol"
- depends on ARM || ARM64 || COMPILE_TEST
- help
- ARM System Control and Management Interface (SCMI) protocol is a
- set of operating system-independent software interfaces that are
- used in system management. SCMI is extensible and currently provides
- interfaces for: Discovery and self-description of the interfaces
- it supports, Power domain management which is the ability to place
- a given device or domain into the various power-saving states that
- it supports, Performance management which is the ability to control
- the performance of a domain that is composed of compute engines
- such as application processors and other accelerators, Clock
- management which is the ability to set and inquire rates on platform
- managed clocks and Sensor management which is the ability to read
- sensor data, and be notified of sensor value.
- This protocol library provides interface for all the client drivers
- making use of the features offered by the SCMI.
- if ARM_SCMI_PROTOCOL
- config ARM_SCMI_NEED_DEBUGFS
- bool
- help
- This declares whether at least one SCMI facility is configured
- which needs debugfs support. When selected causess the creation
- of a common SCMI debugfs root directory.
- config ARM_SCMI_RAW_MODE_SUPPORT
- bool "Enable support for SCMI Raw transmission mode"
- depends on DEBUG_FS
- select ARM_SCMI_NEED_DEBUGFS
- help
- Enable support for SCMI Raw transmission mode.
- If enabled allows the direct injection and snooping of SCMI bare
- messages through a dedicated debugfs interface.
- It is meant to be used by SCMI compliance/testing suites.
- When enabled regular SCMI drivers interactions are inhibited in
- order to avoid unexpected interactions with the SCMI Raw message
- flow. If unsure say N.
- config ARM_SCMI_RAW_MODE_SUPPORT_COEX
- bool "Allow SCMI Raw mode coexistence with normal SCMI stack"
- depends on ARM_SCMI_RAW_MODE_SUPPORT
- help
- Allow SCMI Raw transmission mode to coexist with normal SCMI stack.
- This will allow regular SCMI drivers to register with the core and
- operate normally, thing which could make an SCMI test suite using the
- SCMI Raw mode support unreliable. If unsure, say N.
- config ARM_SCMI_DEBUG_COUNTERS
- bool "Enable SCMI communication debug metrics tracking"
- select ARM_SCMI_NEED_DEBUGFS
- depends on DEBUG_FS
- default n
- help
- Enables tracking of some key communication metrics for debug
- purposes. It may track metrics like how many messages were sent
- or received, were there any failures, what kind of failures, ..etc.
- Enable this option to create a new debugfs directory which contains
- such useful debug counters. This can be helpful for debugging and
- SCMI monitoring.
- source "drivers/firmware/arm_scmi/transports/Kconfig"
- source "drivers/firmware/arm_scmi/vendors/imx/Kconfig"
- endif #ARM_SCMI_PROTOCOL
- config ARM_SCMI_POWER_CONTROL
- tristate "SCMI system power control driver"
- depends on ARM_SCMI_PROTOCOL || (COMPILE_TEST && OF)
- help
- This enables System Power control logic which binds system shutdown or
- reboot actions to SCMI System Power notifications generated by SCP
- firmware.
- This driver can also be built as a module. If so, the module will be
- called scmi_power_control. Note this may needed early in boot to catch
- early shutdown/reboot SCMI requests.
- endmenu
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