1# SPDX-License-Identifier: GPL-2.0-only
2menu "ARM System Control and Management Interface Protocol"
3
4config ARM_SCMI_PROTOCOL
5	tristate "ARM System Control and Management Interface (SCMI) Message Protocol"
6	depends on ARM || ARM64 || COMPILE_TEST
7	help
8	  ARM System Control and Management Interface (SCMI) protocol is a
9	  set of operating system-independent software interfaces that are
10	  used in system management. SCMI is extensible and currently provides
11	  interfaces for: Discovery and self-description of the interfaces
12	  it supports, Power domain management which is the ability to place
13	  a given device or domain into the various power-saving states that
14	  it supports, Performance management which is the ability to control
15	  the performance of a domain that is composed of compute engines
16	  such as application processors and other accelerators, Clock
17	  management which is the ability to set and inquire rates on platform
18	  managed clocks and Sensor management which is the ability to read
19	  sensor data, and be notified of sensor value.
20
21	  This protocol library provides interface for all the client drivers
22	  making use of the features offered by the SCMI.
23
24if ARM_SCMI_PROTOCOL
25
26config ARM_SCMI_HAVE_TRANSPORT
27	bool
28	help
29	  This declares whether at least one SCMI transport has been configured.
30	  Used to trigger a build bug when trying to build SCMI without any
31	  configured transport.
32
33config ARM_SCMI_TRANSPORT_MAILBOX
34	bool "SCMI transport based on Mailbox"
35	depends on MAILBOX
36	select ARM_SCMI_HAVE_TRANSPORT
37	default y
38	help
39	  Enable mailbox based transport for SCMI.
40
41	  If you want the ARM SCMI PROTOCOL stack to include support for a
42	  transport based on mailboxes, answer Y.
43
44config ARM_SCMI_TRANSPORT_SMC
45	bool "SCMI transport based on SMC"
46	depends on HAVE_ARM_SMCCC_DISCOVERY
47	select ARM_SCMI_HAVE_TRANSPORT
48	default y
49	help
50	  Enable SMC based transport for SCMI.
51
52	  If you want the ARM SCMI PROTOCOL stack to include support for a
53	  transport based on SMC, answer Y.
54
55endif #ARM_SCMI_PROTOCOL
56
57config ARM_SCMI_POWER_DOMAIN
58	tristate "SCMI power domain driver"
59	depends on ARM_SCMI_PROTOCOL || (COMPILE_TEST && OF)
60	default y
61	select PM_GENERIC_DOMAINS if PM
62	help
63	  This enables support for the SCMI power domains which can be
64	  enabled or disabled via the SCP firmware
65
66	  This driver can also be built as a module.  If so, the module
67	  will be called scmi_pm_domain. Note this may needed early in boot
68	  before rootfs may be available.
69
70endmenu
71