[PATCH 0/3][SRU][J] Fix ACPI _CPC not found on dynamic loaded firmware
Ivan Hu
ivan.hu at canonical.com
Mon Feb 6 06:27:09 UTC 2023
BugLink: https://bugs.launchpad.net/bugs/2006077
[Impact]
Some machines which have dynamically loaded SSDT tables, will not be loaded and
get the CPPC not worked.
[Fix]
Fix the regression by some load supports for CPPC from an SSDT dynamically
when _OSC reports CPPC v2. And make the "[\_SB.PR00._CPC], AE_NOT_FOUND" gone.
[Test]
Verified all the OEM dynamic table loaded or the "[\_SB.PR00._CPC], AE_NOT_FOUND"
error exist or not on demesg .
[Where problems could occur]
Low risk, It only helps to CPPC support loaded.
Mario Limonciello (1):
ACPI: CPPC: Only probe for _CPC if CPPC v2 is acked
Pierre Gondois (1):
ACPI: bus: Set CPPC _OSC bits for all and when CPPC_LIB is supported
Rafael J. Wysocki (1):
ACPI: bus: Avoid using CPPC if not supported by firmware
drivers/acpi/bus.c | 15 +++++++++++----
drivers/acpi/cppc_acpi.c | 5 +++++
include/linux/acpi.h | 2 ++
3 files changed, 18 insertions(+), 4 deletions(-)
--
2.25.1
More information about the kernel-team
mailing list