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)

• HOTtoday [PATCH v2 0/3] MediaTek mt6572 GCE support
  2026-09-07 18:05 · 2 replies in 7d · Roman Vivchar via B4 Relay <devnull+rva333.protonmail.com@kernel.org>
• COOLING4d [PATCH 0/2] mailbox: axiado: fix RX handling and debugfs name truncation warning
  2026-09-03 07:18 · 2 replies in 7d · Swark Yang <syang@axiado.com>

Active reviewers (last 30 days)

• Peng Fan <peng.fan@nxp.com>
  3 attestations (3 Reviewed-by) · last on 2026-08-31
• Mathieu Poirier <mathieu.poirier@linaro.org>
  3 attestations (3 Reviewed-by) · last on 2026-08-31
• kernel test robot <hidden>
  1 attestation (1 Reported-by) · last on 2026-09-03

Recent patches

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

• HOTtoday [PATCH v2 1/3] dt-bindings: mailbox: mediatek,gce-mailbox: add mt6572
  2026-09-07 · Roman Vivchar via B4 Relay <devnull+rva333.protonmail.com@kernel.org>
• HOTtoday [PATCH v2 3/3] mailbox: mtk-cmdq: add mt6572 support
  2026-09-07 · Roman Vivchar via B4 Relay <devnull+rva333.protonmail.com@kernel.org>
• DORMANTno replies [PATCH 1/2] mailbox: axiado: fix RX frame draining and error handling
  2026-09-03 · Swark Yang <syang@axiado.com>
• COOLING4d [PATCH 2/2] mailbox: axiado: fix debugfs name truncation warning
  2026-09-03 · Swark Yang <syang@axiado.com>
• COOLING4d REVIEWED: 4 (4M) [PATCH AUTOSEL 6.18-6.12] mailbox: imx: Use devm_pm_runtime_enable()
  2026-08-31 · Sasha Levin <sashal@kernel.org>
• COOLING4d REVIEWED: 4 (4M) [PATCH AUTOSEL 6.18-6.12] mailbox: imx: Add a channel shutdown field
  2026-08-31 · Sasha Levin <sashal@kernel.org>
• COOLING4d REVIEWED: 4 (4M) [PATCH AUTOSEL 6.18-6.12] mailbox: imx: use devm_of_platform_populate()
  2026-08-31 · Sasha Levin <sashal@kernel.org>
• COOLING13d [PATCH v4] mailbox: mtk-cmdq: fix runtime PM usage counter leak in cmdq_mbox_flush()
  2026-08-25 · Manush Prajwal <hidden>
• DORMANTno replies [PATCH v1 3/3] mailbox: rockchip: Convert to use dev_err_probe()
  2026-08-25 · Uwe Kleine-König <ukleinek@kernel.org>
• COOLING13d [PATCH v1 2/3] mailbox: rockchip: Simplify device variant handling
  2026-08-25 · Uwe Kleine-König <ukleinek@kernel.org>
• COOLING13d [PATCH v1 1/3] mailbox: rockchip: Add a prefix for register defines
  2026-08-25 · Uwe Kleine-König <ukleinek@kernel.org>
• COOLING13d [PATCH v3] mailbox: mtk-cmdq: fix runtime PM usage counter leak in cmdq_mbox_flush
  2026-08-24 · Manush Prajwal <hidden>
• DORMANTno replies [PATCHv3] mailbox: sun6i: modernize probe and convert to fully managed
  2026-08-23 · Rosen Penev <hidden>
• DORMANTno replies [PATCH] mailbox: rockchip-mailbox: use devm_clk_get_enabled() for probe cleanup
  2026-08-18 · Jiawen Liu <hidden>
• COLD17d [PATCH v2 1/2] dt-bindings: mailbox: add Axiado AX3005 mailbox
  2026-08-18 · Swark Yang <syang@axiado.com>
• COLD17d [PATCH v2 2/2] mailbox: add Axiado AX3005 mailbox driver
  2026-08-18 · Swark Yang <syang@axiado.com>
• COLD19d [PATCHv2] mailbox: sun6i: modernize probe and convert to fully managed
  2026-08-14 · Rosen Penev <hidden>
• DORMANTno replies [PATCH v2] dt-bindings: mailbox: Delete old 'mailbox.txt' bindings file
  2026-08-14 · Douglas Anderson <dianders@chromium.org>
• COLD25d [PATCH v2 2/2] mailbox: cix: fix DT property name string typo and use dev_err_probe()
  2026-08-12 · <hidden>
• COLD25d [PATCH v2 1/2] mailbox: cix: validate fast channel index before request_irq()
  2026-08-12 · <hidden>
• COLD39d [PATCH 1/2] dt-bindings: mailbox: add Axiado AX3005 mailbox
  2026-07-30 · Swark Yang <syang@axiado.com>
• COLD39d [PATCH 2/2] mailbox: add Axiado AX3005 mailbox driver
  2026-07-30 · Swark Yang <syang@axiado.com>
• COLD39d [PATCH 3/3] mailbox: mtk-cmdq: add mt6572 support
  2026-07-28 · Roman Vivchar via B4 Relay <devnull+rva333.protonmail.com@kernel.org>
• COLD39d [PATCH 1/3] dt-bindings: mailbox: mediatek,gce-mailbox: add mt6572
  2026-07-28 · Roman Vivchar via B4 Relay <devnull+rva333.protonmail.com@kernel.org>
• DORMANTno replies [PATCH 2/2] mailbox: rockchip: drop unneeded runtime pointer (pclk)
  2026-07-28 · Linmao Li <hidden>
• COLD41d [PATCH 1/2] mailbox: rockchip: disable pclk on probe failure and unbind
  2026-07-28 · Linmao Li <hidden>
• DORMANTno replies [PATCH] mailbox: bcm2835: use platform_get_irq and simplify probe
  2026-07-27 · Rosen Penev <hidden>
• COLD24d [PATCH] mailbox: sun6i: modernize probe and convert to fully managed
  2026-07-27 · Rosen Penev <hidden>
• COLD27d [PATCH] mailbox: cix: validate channel parameters early and convert to dev_err_probe
  2026-07-24 · <hidden>
• COLD49d [PATCH] Documentation/devicetree/bindings: update Sudeep Holla's email address
  2026-07-20 · Laszlo Ersek <hidden>

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.

• STALE182d REVIEWED: 11 (11M) [PATCH v2] mailbox: remove superfluous internal header
  2026-03-09 · Wolfram Sang <wsa+renesas@sang-engineering.com> · 1 Reviewed-by
• STALE162d REVIEWED: 12 (12M) [PATCH v3] mailbox: remove superfluous internal header
  2026-03-27 · Wolfram Sang <wsa+renesas@sang-engineering.com> · 2 Reviewed-by
• STALE162d REVIEWED: 10 (10M) [PATCH v2] mailbox: exynos: drop superfluous mbox setting per channel
  2026-03-27 · Wolfram Sang <wsa+renesas@sang-engineering.com> · 1 Reviewed-by, 1 Tested-by
• STALE159d REVIEWED: 4 (4M) [PATCH] mailbox: Fix NULL message support in mbox_send_message()
  2026-03-27 · jassisinghbrar@gmail.com · 1 Reviewed-by
• STALE91d 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
• STALE70d REVIEWED: 4 (4M) [PATCH v3 02/10] mailbox: imx: Add a channel shutdown field
  2026-06-17 · Sebastian Andrzej Siewior <bigeasy@linutronix.de> · 2 Reviewed-by
• STALE70d REVIEWED: 4 (4M) [PATCH v3 03/10] mailbox: imx: Use devm_pm_runtime_enable()
  2026-06-17 · Sebastian Andrzej Siewior <bigeasy@linutronix.de> · 2 Reviewed-by
• STALE70d REVIEWED: 4 (4M) [PATCH v3 04/10] mailbox: imx: use devm_of_platform_populate()
  2026-06-17 · Sebastian Andrzej Siewior <bigeasy@linutronix.de> · 2 Reviewed-by
• STALE70d REVIEWED: 4 (4M) [PATCH v3 05/10] mailbox: imx: Use channel index instead of zero in imx_mu_specific_rx()
  2026-06-17 · Sebastian Andrzej Siewior <bigeasy@linutronix.de> · 2 Reviewed-by
• STALE70d REVIEWED: 4 (4M) [PATCH v3 06/10] mailbox: imx: Start splitting the IRQ handler in primary and threaded handler
  2026-06-17 · Sebastian Andrzej Siewior <bigeasy@linutronix.de> · 2 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.

• STALE125d [PATCH AUTOSEL 7.0-6.18] mailbox: cix: Add IRQF_NO_SUSPEND to mailbox interrupt
  2026-05-05 · Sasha Levin <sashal@kernel.org>
• DORMANTno replies [PATCH] mailbox: bcm2835: use platform_get_irq and simplify probe
  2026-07-27 · Rosen Penev <hidden>
• COLD41d [PATCH 1/2] mailbox: rockchip: disable pclk on probe failure and unbind
  2026-07-28 · Linmao Li <hidden>
• DORMANTno replies [PATCH 2/2] mailbox: rockchip: drop unneeded runtime pointer (pclk)
  2026-07-28 · Linmao Li <hidden>