67 lines
1.9 KiB
Plaintext
67 lines
1.9 KiB
Plaintext
# Copyright (c) 2014-2015 Wind River Systems, Inc.
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# Copyright (c) 2016 Intel Corporation
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# SPDX-License-Identifier: Apache-2.0
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menu "Power Management"
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menuconfig PM
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bool "System Power Management"
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depends on SYS_CLOCK_EXISTS && !HAS_NO_PM
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help
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This option enables the board to implement extra power management
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policies whenever the kernel becomes idle. The kernel informs the
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power management subsystem of the number of ticks until the next kernel
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timer is due to expire.
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if PM
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module = PM
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module-str = System Power Management
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source "subsys/logging/Kconfig.template.log_config"
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config PM_STATS
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bool "System Power Management Stats"
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depends on STATS
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help
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Enable System Power Management Stats.
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source "subsys/pm/policy/Kconfig"
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endif # PM
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config HAS_NO_PM
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bool
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help
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This option blocks selection of PM. It can be selected in SOC
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targets where system power management is not supported, for example
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on support core of a multi-core device where SoC power management is
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the responsibility of a different core.
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config PM_DEVICE
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bool "Device Power Management"
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help
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This option enables the device power management interface. The
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interface consists of hook functions implemented by device drivers
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that get called by the power manager application when the system
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is going to suspend state or resuming from suspend state. This allows
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device drivers to do any necessary power management operations
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like turning off device clocks and peripherals. The device drivers
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may also save and restore states in these hook functions.
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if PM_DEVICE
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module = PM_DEVICE
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module-str = Device Power Management
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source "subsys/logging/Kconfig.template.log_config"
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config PM_DEVICE_RUNTIME
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bool "Runtime Device Power Management"
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help
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Enable Runtime Power Management to save power. With device runtime PM
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enabled, devices can be suspended or resumed based on the device
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usage even while the CPU or system is running.
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endif # PM_DEVICE
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endmenu
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