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Mario Limonciello
8b356e536e
commit72f2ecb7ec("ACPI: bus: Set CPPC _OSC bits for all and when CPPC_LIB is supported") added support for claiming to support CPPC in _OSC on non-Intel platforms. This unfortunately caused a regression on a vartiety of AMD platforms in the field because a number of AMD platforms don't set the `_OSC` bit 5 or 6 to indicate CPPC or CPPC v2 support. As these AMD platforms already claim CPPC support via a dedicated MSR from `X86_FEATURE_CPPC`, use this enable this feature rather than requiring the `_OSC` on platforms with a dedicated MSR. If there is additional breakage on the shared memory designs also missing this _OSC, additional follow up changes may be needed. Fixes:72f2ecb7ec("Set CPPC _OSC bits for all and when CPPC_LIB is supported") Reported-by: Perry Yuan <[email protected]> Signed-off-by: Mario Limonciello <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>