Introduce mailbox controller driver for ZynqMP IPI(Inter-processor interrupt) IP core. As the device tree bindings have been updated. Do not have "Reviewed-by" nor "Acked-by" in the dt-bindings commit. v7: - Fix sparse warning, and documentation check. - Add emply block to the end of of_device_id. v6: - dts-binding, remove compatible property from IPI subnode v5: - fix check patch warning on write a paragraph to describe the kconfig symbol. v4: - make IPI mailboxes as subnodes to the IPI agent device node to properly describe the hardware. v3: - add NULL entry to of_device_id of IPI controller v2: - change SPDX-License-Identifier license text style in .c file - replace xlnx-ipi-ids with xlnx,ipi-ids Wendy Liang (2): mailbox: ZynqMP IPI mailbox controller dt-bindings: mailbox: Add Xilinx IPI Mailbox .../bindings/mailbox/xlnx,zynqmp-ipi-mailbox.txt | 127 ++++ drivers/mailbox/Kconfig | 11 + drivers/mailbox/Makefile | 2 + drivers/mailbox/zynqmp-ipi-mailbox.c | 764 +++++++++++++++++++++ 4 files changed, 904 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/xlnx,zynqmp-ipi-mailbox.txt create mode 100644 drivers/mailbox/zynqmp-ipi-mailbox.c -- 2.7.4