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

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

Recent patches

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

• COOLING6d REVIEWED: 4 (4M) [PATCH AUTOSEL 6.18-6.12] mailbox: imx: Use devm_pm_runtime_enable()
  2026-08-31 · Sasha Levin <sashal@kernel.org>
• COOLING6d REVIEWED: 4 (4M) [PATCH AUTOSEL 6.18-6.12] mailbox: imx: Add a channel shutdown field
  2026-08-31 · Sasha Levin <sashal@kernel.org>
• COOLING6d REVIEWED: 4 (4M) [PATCH AUTOSEL 6.18-6.12] mailbox: imx: use devm_of_platform_populate()
  2026-08-31 · Sasha Levin <sashal@kernel.org>
• STALE75d [PATCH] mailbox: imx: return TXDB_V2 timeout errors
  2026-06-24 · Pengpeng Hou <hidden>
• STALE72d Re: [PATCH v3 01/10] mailbox: imx: Forward the timeout/ error in imx_mu_generic_tx()
  2026-06-18 · Peng Fan <hidden>
• STALE72d REVIEWED: 4 (4M) [PATCH v3 08/10] mailbox: imx: Move the RXDB part of the mailbox into the threaded handler
  2026-06-17 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE72d REVIEWED: 4 (4M) [PATCH v3 07/10] mailbox: imx: Move the RX part of the mailbox into the threaded handler
  2026-06-17 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE72d REVIEWED: 4 (4M) [PATCH v3 09/10] mailbox: imx: Don't force-thread the primary handler
  2026-06-17 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE72d 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>
• STALE72d 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>
• STALE72d REVIEWED: 4 (4M) [PATCH v3 03/10] mailbox: imx: Use devm_pm_runtime_enable()
  2026-06-17 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE72d REVIEWED: 4 (4M) [PATCH v3 04/10] mailbox: imx: use devm_of_platform_populate()
  2026-06-17 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE72d [PATCH v3 01/10] mailbox: imx: Forward the timeout/ error in imx_mu_generic_tx()
  2026-06-17 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE72d REVIEWED: 4 (4M) [PATCH v3 02/10] mailbox: imx: Add a channel shutdown field
  2026-06-17 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE93d [PATCH v2 6/9] mailbox: imx: Move the RX part of the mailbox into the threaded handler
  2026-06-03 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE93d [PATCH v2 7/9] mailbox: imx: Move the RXDB part of the mailbox into the threaded handler
  2026-06-03 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE93d [PATCH v2 5/9] mailbox: imx: Start splitting the IRQ handler in primary and threaded handler
  2026-06-03 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE93d [PATCH v2 8/9] mailbox: imx: Don't force-thread the primary handler
  2026-06-03 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE93d [PATCH v2 4/9] mailbox: imx: Use channel index instead of zero in imx_mu_specific_rx()
  2026-06-03 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE93d [PATCH v2 2/9] mailbox: imx: Use devm_pm_runtime_enable()
  2026-06-03 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE93d [PATCH v2 3/9] mailbox: imx: use devm_of_platform_populate()
  2026-06-03 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE93d [PATCH v2 1/9] mailbox: imx: Add a channel shutdown field
  2026-06-03 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE99d [PATCH 4/5] mailbox: imx: Don't force-thread the primary handler
  2026-05-29 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE99d [PATCH 3/5] mailbox: imx: Move the RXDB part of the mailbox into the threaded handler
  2026-05-29 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE99d [PATCH 2/5] mailbox: imx: Move the RX part of the mailbox into the threaded handler
  2026-05-29 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE99d [PATCH 1/5] mailbox: imx: Start splitting the IRQ handler in primary and threaded handler
  2026-05-29 · Sebastian Andrzej Siewior <bigeasy@linutronix.de>
• STALE149d [PATCH] mailbox: prefix new constants with MBOX_
  2026-04-10 · Wolfram Sang <wsa+renesas@sang-engineering.com>
• STALE164d REVIEWED: 12 (12M) [PATCH v3] mailbox: remove superfluous internal header
  2026-03-27 · Wolfram Sang <wsa+renesas@sang-engineering.com>
• STALE184d REVIEWED: 11 (11M) [PATCH v2] mailbox: remove superfluous internal header
  2026-03-09 · Wolfram Sang <wsa+renesas@sang-engineering.com>
• STALE197d [RFC PATCH] mailbox: remove superfluous internal header
  2026-02-24 · Wolfram Sang <wsa+renesas@sang-engineering.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.

• STALE184d REVIEWED: 11 (11M) [PATCH v2] mailbox: remove superfluous internal header
  2026-03-09 · Wolfram Sang <wsa+renesas@sang-engineering.com> · 1 Reviewed-by
• STALE164d REVIEWED: 12 (12M) [PATCH v3] mailbox: remove superfluous internal header
  2026-03-27 · Wolfram Sang <wsa+renesas@sang-engineering.com> · 2 Reviewed-by
• STALE72d 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
• STALE72d 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
• STALE72d 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
• STALE72d 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
• STALE72d 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