Merge branch 'next/mailbox' into for-next

Merge branch 'next/mailbox' into for-next

* next/mailbox:
  mailbox: fix invalid use of sizeof in mailbox_msg_send()
  mailbox: call request_irq after mbox queues are allocated
  mailbox: check for NULL nb in mailbox_put
  mailbox/omap: check iomem resource before dereferencing it
  mailbox: create dbx500 mailbox driver
  mailbox: add no_irq send message
  mailbox: add IRQF_NO_SUSPEND flag
  mailbox: add shared memory mailbox type
  mailbox: change protection mechanisms
  mailbox: create opened message type
  mailbox: rename omap_mbox in mailbox
  mailbox: split internal header from API header
  mailbox: OMAP: introduce mailbox framework
  ARM: OMAP2+: mbox: remove dependencies with soc.h
  mailbox: rename pl320-ipc specific mailbox.h