kernel/linux.git/Documentation/devicetree/bindings/mailbox, branch v7.2-rc5

dt-bindings: mailbox: qcom: Add IPCC support for Maili Platform

2026-06-11T23:36:03+00:00

Document the Inter-Processor Communication Controller on the Qualcomm Maili Platform, which will be used to route interrupts across various subsystems found on the SoC. Signed-off-by: Chunkai Deng Reviewed-by: Manivannan Sadhasivam Signed-off-by: Jassi Brar

dt-bindings: mailbox: qcom: Add IPCC support for Hawi Platform

2026-05-18T18:31:59+00:00

Document the Inter-Processor Communication Controller on the Qualcomm Hawi Platform, which will be used to route interrupts across various subsystems found on the SoC. Reviewed-by: Konrad Dybcio Signed-off-by: Mukesh Ojha Reviewed-by: Manivannan Sadhasivam Signed-off-by: Jassi Brar

dt-bindings: mailbox: qcom,cpucp-mbox: Add Hawi compatible

2026-05-18T18:29:29+00:00

Document CPU Control Processor (CPUCP) mailbox controller for Qualcomm Hawi SoCs. It is software compatible with X1E80100 CPUCP mailbox controller hence fallback to it. Signed-off-by: Mukesh Ojha Acked-by: Krzysztof Kozlowski Signed-off-by: Jassi Brar

dt-bindings: mailbox: qcom: Add Shikra APCS compatible

2026-05-18T18:26:23+00:00

Add compatible for the Qualcomm Shikra APCS block. Signed-off-by: Komal Bajaj Signed-off-by: Sneh Mankad Acked-by: Rob Herring (Arm) Signed-off-by: Jassi Brar

dt-bindings: mailbox: qcom: Document Nord CPUCP mailbox controller

2026-05-18T18:23:52+00:00

Document CPUSS Control Processor (CPUCP) mailbox controller for Qualcomm Nord SoC, which is compatible with X1E80100 CPUCP, even though it supports more IPC channels. Signed-off-by: Deepti Jaggi Signed-off-by: Shawn Guo Reviewed-by: Krzysztof Kozlowski Signed-off-by: Jassi Brar

dt-bindings: mailbox: qcom-ipcc: Document the Eliza Inter-Processor Communication Controller

2026-03-29T17:09:36+00:00

Document the Inter-Processor Communication Controller (IPCC) found in the Qualcomm Eliza SoC. It is used to route interrupts across various subsystems. Signed-off-by: Abel Vesa Acked-by: Manivannan Sadhasivam Reviewed-by: Konrad Dybcio Signed-off-by: Jassi Brar

Merge tag 'mailbox-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox

2026-02-14T19:13:32+00:00

Pull mailbox updates from Jassi Brar: "Platform and core updates PCC: - Updates to transmission and interrupt handling, including dynamic txdone configuration, ->last_tx_done() wiring, and SHMEM initialization fixes. Reverted previous shared buffer patch MediaTek - Introduce mtk-vcp-mailbox driver and bindings for MT8196 VCP - Expand mtk-cmdq for MT8196 with GCE virtualization, mminfra_offset, and instruction generation data Spreadtrum (SPRD) - Add Mailbox Revision 2 support and UMS9230 bindings - Fix unhandled interrupt masking and TX done delivery flags Microchip - Add pic64gx compatibility to MPFS - Fix out-of-bounds access and smatch warnings in mchp-ipc-sbi Core & Misc Platform Updates - Prevent out-of-bounds access in fw_mbox_index_xlate() - Add bindings for Qualcomm CPUCP (Kaanapali) - Simplify mtk-cmdq and zynqmp-ipi with scoped OF child iterators - Consolidate various minor fixes, dead code removal, and typo corrections across Broadcom, NXP, Samsung, Xilinx, ARM, and core headers" * tag 'mailbox-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox: (34 commits) mailbox: sprd: mask interrupts that are not handled mailbox: sprd: add support for mailbox revision 2 mailbox: sprd: clear delivery flag before handling TX done dt-bindings: mailbox: sprd: add compatible for UMS9230 mailbox: bcm-ferxrm-mailbox: Use default primary handler mailbox: Remove mailbox_client.h from controller drivers mailbox: zynqmp-ipi: Simplify with scoped for each OF child loop mailbox: mtk-cmdq: Simplify with scoped for each OF child loop dt-bindings: mailbox: xlnx,zynqmp-ipi-mailbox: Document msg region requirement mailbox: Improve RISCV_SBI_MPXY_MBOX guidance mailbox: mchp-ipc-sbi: fix uninitialized symbol and other smatch warnings mailbox: arm_mhuv3: fix typo in comment mailbox: cix: fix typo in error message mailbox: imx: Skip the suspend flag for i.MX7ULP mailbox: exynos: drop unneeded runtime pointer (pclk) mailbox: pcc: Remove spurious IRQF_ONESHOT usage mailbox: mtk-cmdq: Add driver data to support for MT8196 mailbox: mtk-cmdq: Add mminfra_offset configuration for DRAM transaction mailbox: mtk-cmdq: Add GCE hardware virtualization configuration mailbox: mtk-cmdq: Add cmdq private data to cmdq_pkt for generating instruction ...

dt-bindings: mailbox: sprd: add compatible for UMS9230

2026-02-02T00:59:14+00:00

Add a compatible string for the mailbox controller found in the UMS9230 SoC. Signed-off-by: Otto Pflüger Acked-by: Krzysztof Kozlowski Signed-off-by: Jassi Brar

dt-bindings: mailbox: xlnx,zynqmp-ipi-mailbox: Document msg region requirement

2026-01-25T00:42:39+00:00

Add description clarifying that for Versal IPI mailboxes, both host and remote agents must have the "msg" register region defined for successful message passing. Without both, only notification-based communication works. Signed-off-by: Harini T Acked-by: Rob Herring (Arm) Signed-off-by: Jassi Brar

dt-bindings: mbox: add pic64gx mailbox compatibility to mpfs mailbox

2026-01-18T20:19:20+00:00

pic64gx mailbox is compatible with mpfs mailbox, even if the mailbox consumer is not - the underlying communication mechanism is the same. Signed-off-by: Pierre-Henry Moussay Signed-off-by: Conor Dooley Reviewed-by: Rob Herring (Arm) Signed-off-by: Jassi Brar