From: Rob Rice <rrice@xxxxxxxxxxxx> The Broadcom PDC mailbox driver is a ring manager for the Broadcom Secure Processing Unit (SPU) kernel driver and other mailbox clients. The PDC driver registers with the Linux mailbox framework a mailbox controller, once for each PDC instance. Ring 0 for each PDC is registered as a mailbox channel. The PDC driver uses interrupts to determine when ring transfers to and from an offload engine are complete. The PDC driver uses threaded IRQs so that response messages are handled outside of interrupt context. Rob Rice (3): dt-bindings: add bindings documentation for PDC driver. mailbox: Add Broadcom PDC mailbox driver arm64: dts: Add Broadcom Northstar2 device tree entries for PDC driver. .../bindings/mailbox/brcm,iproc-pdc-mbox.txt | 23 + arch/arm64/boot/dts/broadcom/ns2.dtsi | 36 + drivers/mailbox/Kconfig | 9 + drivers/mailbox/Makefile | 2 + drivers/mailbox/mailbox-pdc/Makefile | 8 + drivers/mailbox/mailbox-pdc/pdc.c | 1181 ++++++++++++++++++++ drivers/mailbox/mailbox-pdc/pdc.h | 303 +++++ drivers/mailbox/mailbox-pdc/pdc_debug.c | 101 ++ drivers/mailbox/mailbox-pdc/pdc_debug.h | 24 + include/linux/mailbox/brcm-message.h | 56 + 10 files changed, 1743 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/brcm,iproc-pdc-mbox.txt create mode 100644 drivers/mailbox/mailbox-pdc/Makefile create mode 100644 drivers/mailbox/mailbox-pdc/pdc.c create mode 100644 drivers/mailbox/mailbox-pdc/pdc.h create mode 100644 drivers/mailbox/mailbox-pdc/pdc_debug.c create mode 100644 drivers/mailbox/mailbox-pdc/pdc_debug.h create mode 100644 include/linux/mailbox/brcm-message.h -- 2.1.0 -- 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