i3c subsystem · Maintained

Maintainers

• M Alexandre Belloni <alexandre.belloni@bootlin.com>
• R Frank Li <Frank.Li@nxp.com>

Paths

• F Documentation/ABI/testing/sysfs-bus-i3c
• F Documentation/devicetree/bindings/i3c/
• F Documentation/driver-api/i3c
• F drivers/i3c/
• F include/dt-bindings/i3c/
• F include/linux/i3c/

Last 30 days

Most active threads (last 7 days)

• WARM2d [PATCH v12 0/7] Add support for NXP P3H2x4x I3C hub driver
  2026-06-17 11:04 · 6 replies in 7d · Lakshay Piplani <hidden>
• WARM1d [PATCH v4 00/12] Support ACPI and SETAASA device discovery
  2026-06-16 09:57 · 9 replies in 7d · Akhil R <akhilrajeev@nvidia.com>

Active reviewers (last 30 days)

• Frank Li <Frank.Li@nxp.com>
  9 attestations (9 Reviewed-by) · last on 2026-06-17
• Rob Herring (Arm) <robh@kernel.org>
  3 attestations (3 Reviewed-by) · last on 2026-06-17
• Adrian Hunter <adrian.hunter@intel.com>
  1 attestation (1 Reviewed-by) · last on 2026-05-25
• Conor Dooley <conor.dooley@microchip.com>
  1 attestation (1 Acked-by) · last on 2026-05-25

Recent patches

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

• WARM2d [PATCH v12 7/7] i3c: hub: p3h2x4x: Add SMBus slave mode support
  2026-06-17 · Lakshay Piplani <hidden>
• WARM2d [PATCH v12 6/7] i3c: hub: p3h2x4x: Add support for NXP P3H2x4x I3C hub functionality
  2026-06-17 · Lakshay Piplani <hidden>
• WARM2d REVIEWED: 20 (20M) [PATCH v12 2/7] dt-bindings: i3c: Add NXP P3H2x4x i3c-hub support
  2026-06-17 · Lakshay Piplani <hidden>
• WARM2d [PATCH v12 5/7] i3c: hub: Add support for the I3C interface in the I3C hub
  2026-06-17 · Lakshay Piplani <hidden>
• WARM2d REVIEWED: 13 (13M) [PATCH v12 3/7] mfd: p3h2x4x: Add driver for NXP P3H2x4x i3c hub and on-die regulator
  2026-06-17 · Lakshay Piplani <hidden>
• WARM2d [PATCH v12 1/7] i3c: master: Add APIs for I3C hub support
  2026-06-17 · Lakshay Piplani <hidden>
• WARM1d REVIEWED: 13 (13M) [PATCH v4 09/12] i3c: dw-i3c-master: Add ACPI ID for Tegra410
  2026-06-16 · Akhil R <akhilrajeev@nvidia.com>
• WARM1d [PATCH v4 08/12] i3c: dw-i3c-master: Add a quirk to skip clock and reset
  2026-06-16 · Akhil R <akhilrajeev@nvidia.com>
• WARM1d [PATCH v4 07/12] i3c: dw-i3c-master: Add SETAASA as supported CCC
  2026-06-16 · Akhil R <akhilrajeev@nvidia.com>
• WARM1d REVIEWED: 13 (13M) [PATCH v4 06/12] i3c: master: match I3C device through DT and ACPI
  2026-06-16 · Akhil R <akhilrajeev@nvidia.com>
• WARM1d REVIEWED: 13 (13M) [PATCH v4 05/12] i3c: master: Add support for devices without PID
  2026-06-16 · Akhil R <akhilrajeev@nvidia.com>
• WARM1d [PATCH v4 04/12] i3c: master: Add support for devices using SETAASA
  2026-06-16 · Akhil R <akhilrajeev@nvidia.com>
• WARM1d [PATCH v4 03/12] i3c: master: Support ACPI enumeration of child devices
  2026-06-16 · Akhil R <akhilrajeev@nvidia.com>
• WARM1d REVIEWED: 13 (13M) [PATCH v4 02/12] i3c: master: Use unified device property interface
  2026-06-16 · Akhil R <akhilrajeev@nvidia.com>
• WARM1d [PATCH v4 01/12] dt-bindings: i3c: Add mipi-i3c-static-method to support SETAASA
  2026-06-16 · Akhil R <akhilrajeev@nvidia.com>
• WARM1d [PATCH v11 9/9] i3c: hub: p3h2x4x: Add SMBus slave mode support
  2026-06-12 · Lakshay Piplani <hidden>
• WARM1d [PATCH v11 7/9] i3c: hub: Add support for the I3C interface in the I3C hub
  2026-06-12 · Lakshay Piplani <hidden>
• WARM1d [PATCH v11 8/9] i3c: hub: p3h2x4x: Add support for NXP P3H2x4x I3C hub functionality
  2026-06-12 · Lakshay Piplani <hidden>
• WARM1d REVIEWED: 7 (7M) [PATCH v11 4/9] dt-bindings: i3c: Add NXP P3H2x4x i3c-hub support
  2026-06-12 · Lakshay Piplani <hidden>
• WARM1d REVIEWED: 13 (13M) [PATCH v11 1/9] i3c: master: rename i3c_master_reattach_i3c_dev() to *_locked
  2026-06-12 · Lakshay Piplani <hidden>
• WARM1d [PATCH v11 3/9] i3c: master: Add APIs for I3C hub support
  2026-06-12 · Lakshay Piplani <hidden>
• WARM1d [PATCH v11 5/9] mfd: p3h2x4x: Add driver for NXP P3H2x4x i3c hub and on-die regulator
  2026-06-12 · Lakshay Piplani <hidden>
• WARM1d REVIEWED: 13 (13M) [PATCH v11 2/9] i3c: master: Expose the APIs to support I3C hub
  2026-06-12 · Lakshay Piplani <hidden>
• COLD22d [PATCHv2 1/2] dt-bindings: i3c: dw: add resets and reset-names
  2026-05-27 · Dinh Nguyen <dinguyen@kernel.org>
• COLD16d [PATCH v4 3/3] i3c: dw: Add apb reset support
  2026-05-25 · Jisheng Zhang <jszhang@kernel.org>
• COLD16d [PATCH v4 2/3] dt-bindings: i3c: dw: Add apb reset
  2026-05-25 · Jisheng Zhang <jszhang@kernel.org>
• COLD16d [PATCH v4 1/3] dt-bindings: i3c: dw: Describe core reset
  2026-05-25 · Jisheng Zhang <jszhang@kernel.org>
• COLD25d [PATCH v2 1/2] dt-bindings: i3c: add Realtek RTS490x I3C HUB
  2026-05-25 · <hidden>
• COOLING8d Re: [PATCH v10 8/9] i3c: hub: p3h2x4x: Add support for NXP P3H2x4x I3C hub functionality
  2026-05-25 · sashiko-bot@kernel.org
• COOLING5d REVIEWED: 3 (3M) [PATCH v7 3/5] i3c: mipi-i3c-hci: add microchip sama7d65 SoC compatible with the required quirk
  2026-05-25 · Manikandan Muralidharan <manikandan.m@microchip.com>

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.

• STALE80d [PATCH 05/12] i3c: master: Add support for devices using SETAASA
  2026-03-18 · Akhil R <akhilrajeev@nvidia.com>
• STALE80d [PATCH 06/12] i3c: master: Add support for devices without PID
  2026-03-18 · Akhil R <akhilrajeev@nvidia.com>
• STALE80d [PATCH 07/12] i3c: master: match I3C device through DT and ACPI
  2026-03-18 · Akhil R <akhilrajeev@nvidia.com>
• STALE80d [PATCH 09/12] i3c: dw-i3c-master: Add a quirk to skip clock and reset
  2026-03-18 · Akhil R <akhilrajeev@nvidia.com>
• STALE80d [PATCH 10/12] i3c: dw-i3c-master: Add ACPI ID for Tegra410
  2026-03-18 · Akhil R <akhilrajeev@nvidia.com>
• STALE80d [PATCH 08/12] i3c: dw-i3c-master: Add SETAASA as supported CCC
  2026-03-18 · Akhil R <akhilrajeev@nvidia.com>
• STALE85d [PATCH v7 1/7] i3c: master: Expose the APIs to support I3C hub
  2026-03-19 · Lakshay Piplani <hidden>
• STALE85d [PATCH v7 2/7] i3c: master: Add the APIs to support I3C hub
  2026-03-19 · Lakshay Piplani <hidden>
• STALE85d [PATCH v7 7/7] i3c: hub: p3h2x4x: Add support for NXP P3H2x4x I3C hub functionality
  2026-03-19 · Lakshay Piplani <hidden>
• STALE85d [PATCH v7 6/7] i3c: hub: Add support for the I3C interface in the I3C hub
  2026-03-19 · Lakshay Piplani <hidden>