CONFIG_ARM_SCPI_PROTOCOL: ARM System Control and Power Interface (SCPI) Message Protocol

General informations

The Linux kernel configuration item CONFIG_ARM_SCPI_PROTOCOL:

• prompt: ARM System Control and Power Interface (SCPI) Message Protocol
• type: tristate
• depends on: ( CONFIG_ARM || CONFIG_ARM64 || CONFIG_COMPILE_TEST ) && ( CONFIG_MAILBOX )
• defined in drivers/firmware/Kconfig
• found in Linux kernels: 4.4–4.20, 5.0–5.19, 6.0–6.13
• modules built: arm_scpi

Help text

System Control and Power Interface (SCPI) Message Protocol is defined for the purpose of communication between the Application Cores(AP) and the System Control Processor(SCP). The MHU peripheral provides a mechanism for inter-processor communication between SCP and AP.

SCP controls most of the power management on the Application Processors. It offers control and management of: the core/cluster power states, various power domain DVFS including the core/cluster, certain system clocks configuration, thermal sensors and many others.

This protocol library provides interface for all the client drivers making use of the features offered by the SCP.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module arm_scpi CONFIG_ARM_SCPI_PROTOCOL : drivers/firmware/Kconfig : "ARM System Control and Power Interface (SCPI) Message Protocol" # in 4.4–4.20, 5.0–5.19, 6.0–6.13
• lkddb of "" "" "amlogic,meson-axg-scp-shmem" : CONFIG_ARM_SCPI_PROTOCOL : drivers/firmware/arm_scpi.c # in 5.14–5.19, 6.0–6.13
• lkddb of "" "" "amlogic,meson-gxbb-scp-shmem" : CONFIG_ARM_SCPI_PROTOCOL : drivers/firmware/arm_scpi.c # in 5.14–5.19, 6.0–6.13
• lkddb of "" "" "arm,juno-scp-shmem" : CONFIG_ARM_SCPI_PROTOCOL : drivers/firmware/arm_scpi.c # in 5.14–5.19, 6.0–6.13
• lkddb of "" "" "arm,scp-shmem" : CONFIG_ARM_SCPI_PROTOCOL : drivers/firmware/arm_scpi.c # in 5.14–5.19, 6.0–6.13
• lkddb of "" "" "arm,scpi" : CONFIG_ARM_SCPI_PROTOCOL : drivers/firmware/arm_scpi.c # in 4.4–4.20, 5.0–5.19, 6.0–6.13
• lkddb of "" "" "arm,scpi-pre-1.0" : CONFIG_ARM_SCPI_PROTOCOL : drivers/firmware/arm_scpi.c # in 4.10–4.20, 5.0–5.19, 6.0–6.13
• lkddb platform "scpi_protocol" : CONFIG_ARM_SCPI_PROTOCOL : drivers/firmware/arm_scpi.c # in 4.4–4.20, 5.0–5.19, 6.0–6.13

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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