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