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# Copyright 2021 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
if PLATFORM_EC_THROTTLE_AP
config PLATFORM_EC_CHIPSET_CAN_THROTTLE
bool "CPU can support throttling"
default y
help
Indicates that the SoC supports throttling. This means that a
chipset_throttle_cpu() function is provided by the chipset, to be
called to set the throttle state. The typical implementation asserts
GPIO_CPU_PROCHOT, to make the CPU slow down.
config PLATFORM_EC_CONSOLE_CMD_APTHROTTLE
bool "Console command: apthrottle"
default y
help
This command shows the current status of AP throttling. Both soft
(type 0) and hard (type 1) throttling are supported. Soft throttling
is typically controlled by the AP via a host event. Hard throttling
typically uses the PROCHOT (Processor Hot) signal on x86 CPUs.
Example output:
AP throttling type 0 is off (0x00000000)
AP throttling type 1 is off (0x00000000)
config PLATFORM_EC_THROTTLE_AP_ON_BAT_DISCHG_CURRENT
bool "Throttle AP based on battery discharge current"
default n
help
Throttle the CPU when battery discharge current is too high. When
this feature is enabled, the threshold value must be set in
PLATFORM_EC_THROTTLE_AP_ON_BAT_DISCHG_CURRENT_LIMIT.
if PLATFORM_EC_THROTTLE_AP_ON_BAT_DISCHG_CURRENT
config PLATFORM_EC_THROTTLE_AP_ON_BAT_DISCHG_CURRENT_LIMIT
int "Discharge current limit in milliamperes"
default 0
endif
config PLATFORM_EC_THROTTLE_AP_ON_BAT_LOW_VOLTAGE
bool "Throttle AP based on battery voltage"
default n
help
Throttle the CPU when battery voltage drops below a defined threshold
where the board still boots but some components don't function
perfectly. When this feature is enabled, the threshold value must be
set in PLATFORM_EC_THROTTLE_AP_ON_BAT_LOW_VOLTAGE_THRESH.
if PLATFORM_EC_THROTTLE_AP_ON_BAT_LOW_VOLTAGE
config PLATFORM_EC_THROTTLE_AP_ON_BAT_LOW_VOLTAGE_THRESH
int "Low voltage threshold in millivolts"
default 0
endif
endif # PLATFORM_EC_THROTTLE_AP
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