acpi · Supported

Maintainers

• M "Rafael J. Wysocki" <rafael@kernel.org>
• R Len Brown <lenb@kernel.org>

Paths

• F Documentation/ABI/testing/configfs-acpi
• F Documentation/ABI/testing/sysfs-bus-acpi
• F Documentation/firmware-guide/acpi/
• F arch/x86/kernel/acpi/
• F arch/x86/pci/acpi.c
• F drivers/acpi/
• F drivers/pci/*/*acpi*
• F drivers/pci/*acpi*
• F drivers/pnp/pnpacpi/
• F include/acpi/
• F include/linux/acpi.h
• F include/linux/fwnode.h
• F include/linux/fw_table.h
• F lib/fw_table.c
• F rust/kernel/acpi.rs
• F tools/power/acpi/

Last 30 days

Most active threads (last 7 days)

• WARM3d [PATCH v4 0/2] cpufreq: CPPC: add autonomous mode boot parameter support
  2026-05-27 20:26 · 1 reply in 7d · Sumit Gupta <sumitg@nvidia.com>

Recent patches

Most-recent 30 patches in this subsystem on linux-tegra (capped at 30), ordered by date desc.

• DORMANTno replies [PATCH v4 2/2] cpufreq: CPPC: add autonomous mode boot parameter support
  2026-05-27 · Sumit Gupta <sumitg@nvidia.com>
• COLD25d [PATCH v3 02/13] ACPICA: Read LVR from the I2C resource descriptor
  2026-04-23 · Akhil R <akhilrajeev@nvidia.com>
• STALE61d [PATCH 02/12] ACPICA: Read LVR from the I2C resource descriptor
  2026-03-18 · Akhil R <akhilrajeev@nvidia.com>
• DORMANTno replies [PATCH] ACPI: CPPC: Check cpc_read() return values consistently
  2026-03-18 · Sumit Gupta <sumitg@nvidia.com>
• STALE88d REVIEWED: 2 (2M) [PATCH v8 6/7] ACPI: CPPC: add APIs and sysfs interface for perf_limited
  2026-02-06 · Sumit Gupta <sumitg@nvidia.com>
• STALE88d REVIEWED: 2 (2M) [PATCH v8 3/7] ACPI: CPPC: Extend cppc_set_epp_perf() for FFH/SystemMemory
  2026-02-06 · Sumit Gupta <sumitg@nvidia.com>
• STALE88d REVIEWED: 2 (2M) [PATCH v8 2/7] ACPI: CPPC: Warn on missing mandatory DESIRED_PERF register
  2026-02-06 · Sumit Gupta <sumitg@nvidia.com>
• STALE88d REVIEWED: 2 (2M) [PATCH v8 1/7] ACPI: CPPC: Add cppc_get_perf() API to read performance controls
  2026-02-06 · Sumit Gupta <sumitg@nvidia.com>
• STALE114d [PATCH v7 5/7] ACPI: CPPC: add APIs and sysfs interface for perf_limited
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• STALE114d [PATCH v7 4/7] ACPI: CPPC: add APIs and sysfs interface for min/max_perf
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• STALE114d [PATCH v7 3/7] ACPI: CPPC: Extend cppc_set_epp_perf() for FFH/SystemMemory
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• STALE114d [PATCH v7 2/7] ACPI: CPPC: Warn on missing mandatory DESIRED_PERF register
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• STALE114d [PATCH v7 1/7] ACPI: CPPC: Add cppc_get_perf() API to read performance controls
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• STALE123d Re: [PATCH v6 4/9] ACPI: CPPC: Add cppc_get_perf() API to read performance controls
  2026-01-26 · Pierre Gondois <pierre.gondois@arm.com>
• STALE123d [PATCH v6 7/9] ACPI: CPPC: add APIs and sysfs interface for perf_limited
  2026-01-20 · Sumit Gupta <sumitg@nvidia.com>
• STALE123d [PATCH v6 6/9] ACPI: CPPC: add APIs and sysfs interface for min/max_perf
  2026-01-20 · Sumit Gupta <sumitg@nvidia.com>
• STALE123d [PATCH v6 5/9] ACPI: CPPC: Extend cppc_set_epp_perf() for FFH/SystemMemory
  2026-01-20 · Sumit Gupta <sumitg@nvidia.com>
• STALE123d [PATCH v6 3/9] ACPI: CPPC: Rename EPP constants for clarity
  2026-01-20 · Sumit Gupta <sumitg@nvidia.com>
• STALE123d [PATCH v6 4/9] ACPI: CPPC: Add cppc_get_perf() API to read performance controls
  2026-01-20 · Sumit Gupta <sumitg@nvidia.com>
• STALE123d REVIEWED: 1 (1M) [PATCH v6 2/9] ACPI: CPPC: Clean up cppc_perf_caps and cppc_perf_ctrls structs
  2026-01-20 · Sumit Gupta <sumitg@nvidia.com>
• STALE134d [PATCH v5 06/11] ACPI: CPPC: add APIs and sysfs interface for perf_limited
  2025-12-23 · Sumit Gupta <sumitg@nvidia.com>
• STALE134d [PATCH v5 05/11] ACPI: CPPC: add APIs and sysfs interface for min/max_perf
  2025-12-23 · Sumit Gupta <sumitg@nvidia.com>
• STALE134d [PATCH v5 04/11] ACPI: CPPC: Extend cppc_set_epp_perf() to support auto_sel and epp
  2025-12-23 · Sumit Gupta <sumitg@nvidia.com>
• STALE134d [PATCH v5 03/11] ACPI: CPPC: Add cppc_get_perf() API to read performance controls
  2025-12-23 · Sumit Gupta <sumitg@nvidia.com>
• STALE134d [PATCH v5 02/11] ACPI: CPPC: Clean up cppc_perf_caps and cppc_perf_ctrls structs
  2025-12-23 · Sumit Gupta <sumitg@nvidia.com>
• STALE181d [PATCH RFC RESEND 8/8] thermal: core: Allow setting the parent device of thermal zone devices
  2025-11-20 · Armin Wolf <W_Armin@gmx.de>
• STALE181d [PATCH RFC RESEND 5/8] ACPI: video: Stop creating "device" sysfs link
  2025-11-20 · Armin Wolf <W_Armin@gmx.de>
• STALE181d [PATCH RFC RESEND 7/8] ACPI: thermal: Stop creating "device" sysfs link
  2025-11-20 · Armin Wolf <W_Armin@gmx.de>
• STALE181d [PATCH RFC RESEND 3/8] ACPI: processor: Stop creating "device" sysfs link
  2025-11-20 · Armin Wolf <W_Armin@gmx.de>
• STALE181d [PATCH RFC RESEND 6/8] thermal: core: Set parent device in thermal_cooling_device_register()
  2025-11-20 · Armin Wolf <W_Armin@gmx.de>

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE196d [PATCH RFC 3/8] ACPI: processor: Stop creating "device" sysfs link
  2025-11-14 · Armin Wolf <W_Armin@gmx.de>
• STALE181d [PATCH RFC RESEND 4/8] ACPI: fan: Stop creating "device" sysfs link
  2025-11-20 · Armin Wolf <W_Armin@gmx.de>
• STALE181d [PATCH RFC RESEND 6/8] thermal: core: Set parent device in thermal_cooling_device_register()
  2025-11-20 · Armin Wolf <W_Armin@gmx.de>
• STALE181d [PATCH RFC RESEND 3/8] ACPI: processor: Stop creating "device" sysfs link
  2025-11-20 · Armin Wolf <W_Armin@gmx.de>
• STALE181d [PATCH RFC RESEND 7/8] ACPI: thermal: Stop creating "device" sysfs link
  2025-11-20 · Armin Wolf <W_Armin@gmx.de>
• STALE181d [PATCH RFC RESEND 5/8] ACPI: video: Stop creating "device" sysfs link
  2025-11-20 · Armin Wolf <W_Armin@gmx.de>
• STALE181d [PATCH RFC RESEND 8/8] thermal: core: Allow setting the parent device of thermal zone devices
  2025-11-20 · Armin Wolf <W_Armin@gmx.de>
• STALE114d [PATCH v7 1/7] ACPI: CPPC: Add cppc_get_perf() API to read performance controls
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• STALE114d [PATCH v7 3/7] ACPI: CPPC: Extend cppc_set_epp_perf() for FFH/SystemMemory
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>
• STALE114d [PATCH v7 5/7] ACPI: CPPC: add APIs and sysfs interface for perf_limited
  2026-01-29 · Sumit Gupta <sumitg@nvidia.com>