mailbox api · Maintained

Maintainers

• M Jassi Brar <jassisinghbrar@gmail.com>

Paths

• F Documentation/devicetree/bindings/mailbox/
• F drivers/mailbox/
• F include/dt-bindings/mailbox/
• F include/linux/mailbox_client.h
• F include/linux/mailbox_controller.h

Last 30 days

Most active threads (last 7 days)

• COOLING4d [PATCH v2] dt-bindings: mailbox: qcom: Add IPQ5210 APCS compatible
  2026-07-01 08:05 · 0 replies in 7d · Varadarajan Narayanan <hidden>

Active reviewers (last 30 days)

• Hector Martin <hidden>
  1 attestation (1 Co-developed-by) · last on 2026-06-30

Recent patches

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

• COOLING4d [PATCH v2] dt-bindings: mailbox: qcom: Add IPQ5210 APCS compatible
  2026-07-01 · Varadarajan Narayanan <hidden>
• HOTtoday [PATCH 01/10] dt-bindings: mailbox: Add Apple t8122 ASC mailbox
  2026-06-30 · Michael Reeves via B4 Relay <devnull+michael.reeves077.gmail.com@kernel.org>
• HOTtoday [PATCH 02/10] dt-bindings: mailbox: apple: Add DockChannel mailbox
  2026-06-30 · Michael Reeves via B4 Relay <devnull+michael.reeves077.gmail.com@kernel.org>
• HOTtoday [PATCH 05/10] mailbox: apple: Add DockChannel FIFO controller
  2026-06-30 · Michael Reeves via B4 Relay <devnull+michael.reeves077.gmail.com@kernel.org>
• COOLING7d [PATCH] dt-bindings: mailbox: qcom: Add IPQ5210 APCS compatible
  2026-06-29 · Varadarajan Narayanan <hidden>
• WARM1d [PATCH 5/5] dt-bindings: mailbox: qcom: Document Maili CPUCP mailbox controller
  2026-06-18 · Taniya Das <hidden>
• COLD34d [PATCH] driver core: platform: Setup device MSI domain just before driver probe
  2026-05-26 · Anup Patel <hidden>
• COLD26d [PATCH] dt-bindings: mailbox: qcom: Add IPCC support for Maili Platform
  2026-05-26 · Chunkai Deng <hidden>
• COOLING5d [PATCH v3 3/3] dt-bindings: mailbox: qcom: Add Shikra APCS compatible
  2026-05-08 · Sneh Mankad <hidden>
• COLD57d [PATCH v2 4/4] mailbox: qcom-apcs-ipc: Add Shikra APCS IPC support
  2026-05-08 · Sneh Mankad <hidden>
• COLD57d [PATCH v2 3/4] dt-bindings: mailbox: qcom: Add Shikra APCS compatible
  2026-05-08 · Sneh Mankad <hidden>
• COLD60d [PATCH 4/4] mailbox: qcom-apcs-ipc: Add Shikra APCS IPC support
  2026-04-30 · Sneh Mankad <hidden>
• COLD60d [PATCH 3/4] dt-bindings: mailbox: qcom: Add Shikra APCS compatible
  2026-04-30 · Sneh Mankad <hidden>
• COLD29d REVIEWED: 1 (0M) [PATCH v3 2/2] mailbox: exynos: Add support for Exynos850 mailbox
  2026-04-29 · Alexey Klimov <alexey.klimov@linaro.org>
• COLD29d REVIEWED: 6 (5M) [PATCH v3 1/2] dt-bindings: mailbox: google,gs101-mbox: Add samsung,exynos850-mbox
  2026-04-29 · Alexey Klimov <alexey.klimov@linaro.org>
• COLD50d [PATCH] dt-bindings: mailbox: qcom,cpucp-mbox: Add Hawi compatible
  2026-04-27 · Mukesh Ojha <hidden>
• COLD50d [PATCH v2 2/2] mailbox: qcom-cpucp: Add support for Nord CPUCP mailbox controller
  2026-04-27 · Shawn Guo <hidden>
• COLD50d [PATCH v2 1/2] dt-bindings: mailbox: qcom: Document Nord CPUCP mailbox controller
  2026-04-27 · Shawn Guo <hidden>
• STALE72d [PATCH] dt-bindings: mailbox: qcom-ipcc: Document Nord IPCC
  2026-04-20 · Shawn Guo <hidden>
• STALE76d [PATCH 2/2] mailbox: qcom-cpucp: Add support for Nord CPUCP mailbox controller
  2026-04-20 · Shawn Guo <hidden>
• STALE76d [PATCH 1/2] dt-bindings: mailbox: qcom: Document Nord CPUCP mailbox controller
  2026-04-20 · Shawn Guo <hidden>
• STALE92d [PATCH RFC 1/3] dt-bindings: dsp: fsl,dsp: drop references to SOF programming model
  2026-04-06 · Laurentiu Mihalcea <hidden>
• STALE69d [PATCH v2 2/3] mailbox: exynos: Add support for Exynos850 mailbox
  2026-04-02 · Alexey Klimov <alexey.klimov@linaro.org>
• STALE69d [PATCH v2 1/3] dt-bindings: mailbox: google,gs101-mbox: Add samsung,exynos850-mbox
  2026-04-02 · Alexey Klimov <alexey.klimov@linaro.org>
• COLD50d REVIEWED: 1 (0M) [PATCH] dt-bindings: mailbox: qcom: Add IPCC support for Hawi Platform
  2026-04-01 · Mukesh Ojha <hidden>
• STALE100d [PATCH] dt-bindings: mailbox: qcom-ipcc: Document the Eliza Inter-Processor Communication Controller
  2026-03-27 · Abel Vesa <hidden>
• STALE103d [PATCH 3/4] dt-bindings: mailbox: tegra186-hsp: allow doorbell+shared or shared-only
  2026-03-25 · Chun Ng <hidden>
• STALE106d [PATCH] mailbox: dt-bindings: mailbox: Convert to DT-SCHEMA
  2026-03-21 · Atharv Dubey <hidden>
• STALE83d [PATCH 4/5] mailbox: exynos: Add support for Exynos850 mailbox
  2026-03-20 · Alexey Klimov <alexey.klimov@linaro.org>
• STALE83d [PATCH 3/5] dt-bindings: mailbox: google,gs101-mbox: Add samsung,exynos850-mbox
  2026-03-20 · Alexey Klimov <alexey.klimov@linaro.org>

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.

• DORMANTno replies REVIEWED: 13 (13M) [PATCH v3][resend] mailbox: remove unneeded double quotation
  2026-01-09 · Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> · 2 Reviewed-by
• COLD50d REVIEWED: 1 (0M) [PATCH] dt-bindings: mailbox: qcom: Add IPCC support for Hawi Platform
  2026-04-01 · Mukesh Ojha <hidden> · 1 Reviewed-by
• COLD29d REVIEWED: 6 (5M) [PATCH v3 1/2] dt-bindings: mailbox: google,gs101-mbox: Add samsung,exynos850-mbox
  2026-04-29 · Alexey Klimov <alexey.klimov@linaro.org> · 2 Reviewed-by
• COLD29d REVIEWED: 1 (0M) [PATCH v3 2/2] mailbox: exynos: Add support for Exynos850 mailbox
  2026-04-29 · Alexey Klimov <alexey.klimov@linaro.org> · 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.

• STALE156d [PATCH 2/4] mailbox: sprd: clear delivery flag before handling TX done
  2026-01-10 · Otto Pflüger <hidden>
• STALE156d [PATCH 3/4] mailbox: sprd: add support for mailbox revision 2
  2026-01-10 · Otto Pflüger <hidden>
• STALE156d [PATCH 4/4] mailbox: sprd: mask interrupts that are not handled
  2026-01-10 · Otto Pflüger <hidden>
• STALE92d [PATCH RFC 1/3] dt-bindings: dsp: fsl,dsp: drop references to SOF programming model
  2026-04-06 · Laurentiu Mihalcea <hidden>
• COLD57d [PATCH v2 3/4] dt-bindings: mailbox: qcom: Add Shikra APCS compatible
  2026-05-08 · Sneh Mankad <hidden>