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)

• COOLING5d [PATCH v5 0/2] HiSilicon I2C bus recovery support
  2026-09-29 12:13 · 1 reply in 7d · Bowen Yu <hidden>

Recent patches

Most-recent 30 patches in this subsystem on linux-i2c (capped at 30), ordered by date desc.

• COOLING5d [PATCH v5 1/2] ACPI: Add stub for acpi_has_method() for !CONFIG_ACPI
  2026-09-29 · Bowen Yu <hidden>
• COLD50d [PATCH v4 2/2] ACPI: APD: Add clock frequency for HJMC01 I2C controller
  2026-08-13 · clarke.li <hidden>
• COLD50d [PATCH v4 1/2] ACPI: APD: Convert fixed clock rates to use HZ_PER_MHZ
  2026-08-13 · clarke.li <hidden>
• COLD50d [PATCH v3] ACPI: APD: Add clock frequency for HJMC01 I2C controller
  2026-07-22 · clarke.li <hidden>
• STALE67d [PATCH v2 2/6] ACPI: scan: Convert to use acpi_dev_is_video_device() helper
  2026-07-14 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• STALE67d [PATCH v2 1/6] ACPI: utils: Introduce acpi_dev_is_video_device() helper
  2026-07-14 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• STALE67d [PATCH v2 3/6] ACPI: video: Convert to use acpi_dev_is_video_device() helper
  2026-07-14 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• STALE128d IN LINUX-NEXT: 12 (12M) [PATCH] i2c: designware: Add ACPI ID LECA0003 for LECARC SoCs
  2026-05-26 · Thomas Lin <hidden>
• STALE121d REVIEWED: 12 (12M) [PATCH v4 3/3] i2c: designware: Add ACPI ID LECA0003 for LECARC SoCs
  2026-05-20 · Thomas Lin <hidden>
• STALE121d REVIEWED: 8 (8M) [PATCH v4 2/3] spi: dw-mmio: Add ACPI ID LECA0002 for LECARC SoCs
  2026-05-20 · Thomas Lin <hidden>
• STALE139d REVIEWED: 8 (8M) [PATCH v3 3/3] i2c: designware: Add ACPI ID LECA0003 for LECARC SoCs
  2026-05-18 · Thomas Lin <hidden>
• STALE139d REVIEWED: 8 (8M) [PATCH v3 2/3] spi: dw-mmio: Add ACPI ID LECA0002 for LECARC SoCs
  2026-05-18 · Thomas Lin <hidden>
• STALE139d [PATCH v2 3/3] i2c: designware: Add ACPI ID LECA0003 for LECARC SoCs
  2026-05-15 · Thomas Lin <hidden>
• STALE139d [PATCH v2 2/3] spi: dw-mmio: Add ACPI ID LECA0002 for LECARC SoCs
  2026-05-15 · Thomas Lin <hidden>
• STALE139d [PATCH 3/3] Add ACPI ID "LECA0003" for LECARC SoCs that integrate the DesignWare I2C controller.
  2026-05-14 · thomas <hidden>
• STALE139d [PATCH 2/3] Add ACPI ID "LECA0002" for LECARC SoCs. This ID requires a custom initialization function dw_spi_lecarc_init() that sets dws->dws.ip to DW_HSSI_ID.
  2026-05-14 · thomas <hidden>
• STALE142d [PATCH 2/3] spi: dw-mmio: Add LECARC ACPI ID and init hook
  2026-05-14 · thomas <hidden>
• STALE142d [PATCH 3/3] i2c: designware: Add LECARC ACPI ID
  2026-05-14 · thomas <hidden>
• STALE138d REVIEWED: 13 (12M) [PATCH v7 2/3] of: dynamic: Fix overlayed devices not probing because of fw_devlink
  2026-05-11 · Herve Codina <herve.codina@bootlin.com>
• STALE150d REVIEWED: 13 (12M) [PATCH v6 06/27] driver core: fw_devlink: Introduce fw_devlink_set_device()
  2026-03-25 · Herve Codina <herve.codina@bootlin.com>
• STALE150d REVIEWED: 7 (6M) [PATCH v6 02/27] of: dynamic: Fix overlayed devices not probing because of fw_devlink
  2026-03-25 · Herve Codina <herve.codina@bootlin.com>
• STALE191d REVIEWED: 23 (23M) [PATCH v2] device property: Make modifications of fwnode "flags" thread safe
  2026-03-17 · Douglas Anderson <dianders@chromium.org>
• STALE200d [PATCH] device property: Make modifications of fwnode "flags" thread safe
  2026-03-16 · Douglas Anderson <dianders@chromium.org>
• STALE205d REVIEWED: 9 (8M) [PATCH v5 07/28] driver core: fw_devlink: Introduce fw_devlink_set_device()
  2026-02-27 · Herve Codina <herve.codina@bootlin.com>
• STALE205d [PATCH v5 03/28] of: dynamic: Fix overlayed devices not probing because of fw_devlink
  2026-02-27 · Herve Codina <herve.codina@bootlin.com>
• STALE255d [PATCH v4 08/29] driver core: fw_devlink: Introduce fw_devlink_set_device()
  2025-10-15 · Herve Codina <herve.codina@bootlin.com>
• STALE255d [PATCH v4 03/29] of: dynamic: Fix overlayed devices not probing because of fw_devlink
  2025-10-15 · Herve Codina <herve.codina@bootlin.com>
• STALE439d [PATCH v3 12/28] driver core: fw_devlink: Tag the fwnode dev member as private
  2025-06-13 · Herve Codina <herve.codina@bootlin.com>
• STALE439d [PATCH v3 06/28] driver core: fw_devlink: Introduce fw_devlink_set_device()
  2025-06-13 · Herve Codina <herve.codina@bootlin.com>
• STALE439d [PATCH v3 03/28] of: dynamic: Fix overlayed devices not probing because of fw_devlink
  2025-06-13 · Herve Codina <herve.codina@bootlin.com>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE139d REVIEWED: 8 (8M) [PATCH v3 2/3] spi: dw-mmio: Add ACPI ID LECA0002 for LECARC SoCs
  2026-05-18 · Thomas Lin <hidden> · 1 Reviewed-by
• STALE139d REVIEWED: 8 (8M) [PATCH v3 3/3] i2c: designware: Add ACPI ID LECA0003 for LECARC SoCs
  2026-05-18 · Thomas Lin <hidden> · 1 Reviewed-by
• STALE121d REVIEWED: 8 (8M) [PATCH v4 2/3] spi: dw-mmio: Add ACPI ID LECA0002 for LECARC SoCs
  2026-05-20 · Thomas Lin <hidden> · 1 Reviewed-by

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.

• STALE139d [PATCH 2/3] Add ACPI ID "LECA0002" for LECARC SoCs. This ID requires a custom initialization function dw_spi_lecarc_init() that sets dws->dws.ip to DW_HSSI_ID.
  2026-05-14 · thomas <hidden>
• STALE139d [PATCH 3/3] Add ACPI ID "LECA0003" for LECARC SoCs that integrate the DesignWare I2C controller.
  2026-05-14 · thomas <hidden>