# SPDX-License-Identifier: GPL-2.0-only config EXYNOS_ACPM_PROTOCOL tristate "Exynos Alive Clock and Power Manager (ACPM) Message Protocol" depends on ARCH_EXYNOS || COMPILE_TEST depends on MAILBOX help Alive Clock and Power Manager (ACPM) Message Protocol is defined for the purpose of communication between the ACPM firmware and masters (AP, AOC, ...). ACPM firmware operates on the Active Power Management (APM) module that handles overall power activities. This protocol driver provides interface for all the client drivers making use of the features offered by the APM.