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# SPDX-License-Identifier: GPL-2.0-only
#
# AMD PMC Driver
#
config AMD_PMC
tristate "AMD SoC PMC driver"
depends on ACPI && PCI && RTC_CLASS && AMD_NB
depends on SUSPEND
select SERIO
help
The driver provides support for AMD Power Management Controller
primarily responsible for S2Idle transactions that are driven from
a platform firmware running on SMU. This driver also provides a debug
mechanism to investigate the S2Idle transactions and failures.
Say Y or M here if you have a notebook powered by AMD RYZEN CPU/APU.
If you choose to compile this driver as a module the module will be
called amd-pmc.
config AMD_MP2_STB
bool "AMD SoC MP2 STB function"
depends on AMD_PMC
default AMD_PMC
help
AMD MP2 STB function provides a data buffer used to log debug
information about the system execution during S2Idle suspend/resume.
A data buffer known as the STB (Smart Trace Buffer) is a circular
buffer which is a low-level log for the SoC which is used to debug
any hangs/stalls during S2Idle suspend/resume.
Creates debugfs to get STB, a userspace daemon can access STB log of
last S2Idle suspend/resume which can help to debug if hangs/stalls
during S2Idle suspend/resume.
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