From: Mario Limonciello <mario.limonciello@xxxxxxx> When two drivers provide platform profile handlers but use different strings to mean (essentially) the same thing the legacy interface won't export them because it only shows profiles common to multiple drivers. This causes an unexpected behavior to people who have upgraded from an earlier kernel because if multiple drivers have bound platform profile handlers they might not be able to access profiles they were expecting. Introduce a concept of a "hidden choice" that drivers can register and the platform profile handler code will utilize when using the legacy interface. There have been some other attempts at solving this issue in other ways. This serves as an alternative to those attempts. Link: https://lore.kernel.org/platform-driver-x86/e64b771e-3255-42ad-9257-5b8fc6c24ac9@xxxxxx/T/#t Link: https://lore.kernel.org/platform-driver-x86/CAGwozwF-WVEgiAbWbRCiUaXf=BVa3KqmMJfs06trdMQHpTGmjQ@xxxxxxxxxxxxxx/T/#m2f3929e2d4f73cc0eedd14738170dad45232fd18 Cc: Antheas Kapenekakis <lkml@xxxxxxxxxxx> Cc: "Luke D. Jones" <luke@xxxxxxxxxx> Mario Limonciello (3): ACPI: platform_profile: Add support for hidden choices platform/x86/amd: pmf: Add 'quiet' to hidden choices platform/x86/amd: pmf: Add balanced-performance to hidden choices drivers/acpi/platform_profile.c | 94 +++++++++++++++++++++++------- drivers/platform/x86/amd/pmf/sps.c | 11 ++++ include/linux/platform_profile.h | 3 + 3 files changed, 87 insertions(+), 21 deletions(-) -- 2.43.0
