# 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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