This series adds support for the "hardware message box" in recent Allwinner sunxi SoCs, used for communication with the ARISC management processor (the platform's equivalent of the ARM SCP). The end goal is to use the arm_scpi driver as a client, communicating with firmware running on the ARISC CPU. This driver has been tested with the base arm_scpi driver (which sends the SCPI_CMD_SCPI_CAPABILITIES command at probe time) and an in-progress firmware application running on the ARISC CPU. Because no firmware for the other end of the mailbox is complete at the moment, I have not included changes to the SoC device trees. The second patch in the series fixes an issue in the mailbox framework discovered while writing this driver. It is a re-send of a patch I originally sent by itself in January. Samuel Holland (3): dt-bindings: Add a binding for the sunxi message box mailbox: Avoid NULL dereference in mbox_chan_received_data mailbox: sunxi-msgbox: Add a new mailbox driver .../devicetree/bindings/mailbox/sunxi-msgbox.txt | 40 +++ drivers/mailbox/Kconfig | 7 + drivers/mailbox/Makefile | 2 + drivers/mailbox/mailbox.c | 6 +- drivers/mailbox/sunxi-msgbox.c | 323 +++++++++++++++++++++ 5 files changed, 376 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/mailbox/sunxi-msgbox.txt create mode 100644 drivers/mailbox/sunxi-msgbox.c -- 2.13.6 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
