[RFC PATCH 0/3] ACPI: platform_profile: Let drivers dynamically refresh choices

[Kurt Borja]

Hello,

Some drivers may need to dynamically modify their selected `choices`.
Such is the case of the acer-wmi driver, which implemented their own
profile cycling method, because users expect different profiles to be
available whether the laptop is on AC or not [1].

These series would allow acer-wmi to simplify this custom cycling method
to use platform_profile_cycle(), as it's already being proposed in these
series [2]; without changing expected behaviors, by refreshing their
selected choices on AC connect/disconnect events, which would also solve
this discussion [3].

Additionally, I think the platform_profile_ops approach would enable us
to hide the platform_profile_handler in the future, and instead just pass
the class device to get/set methods like the HWMON subsystem does.

I think having this kind of flexibility is valuable. Let me know what you
think!

These series are based on top of pdx86/for-next branch.

~ Kurt

[1] https://lore.kernel.org/platform-driver-x86/6a9385e6-8c5a-4d08-8ff9-728ac40792d2@xxxxxxxxx/
[2] https://lore.kernel.org/platform-driver-x86/20250104-platform_profile-v2-0-b58164718903@xxxxxxxxx/
[3] https://lore.kernel.org/platform-driver-x86/20241210001657.3362-6-W_Armin@xxxxxx/

Kurt Borja (3):
  ACPI: platform_profile: Add ops member to handlers
  ACPI: platform_profile: Add `choices` to platform_profile_ops
  ACPI: platform_profile: Add platform_profile_refresh_choices()

 drivers/acpi/platform_profile.c               | 39 ++++++++++++--
 .../surface/surface_platform_profile.c        | 24 ++++++---
 drivers/platform/x86/acer-wmi.c               | 35 ++++++------
 drivers/platform/x86/amd/pmf/sps.c            | 23 +++++---
 drivers/platform/x86/asus-wmi.c               | 24 ++++++---
 drivers/platform/x86/dell/alienware-wmi.c     | 19 ++++---
 drivers/platform/x86/dell/dell-pc.c           | 34 +++++++-----
 drivers/platform/x86/hp/hp-wmi.c              | 53 +++++++++++++------
 drivers/platform/x86/ideapad-laptop.c         | 23 +++++---
 .../platform/x86/inspur_platform_profile.c    | 22 +++++---
 drivers/platform/x86/thinkpad_acpi.c          | 23 +++++---
 include/linux/platform_profile.h              | 16 ++++--
 12 files changed, 237 insertions(+), 98 deletions(-)


base-commit: 6b228cfc52a6e9b7149cf51e247076963d6561cd
-- 
2.47.1