Merge branch 'mailbox-for-linus' of git://git.linaro.org/landing-teams/working/fujitsu/integration

Pull mailbox framework from Jassi Brar:
 "A framework for Mailbox controllers and clients have been cooking for
  more than a year now.

  Everybody in the CC list had been copied on patchset revisions and
  most of them have made sounds of approval, though just one concrete
  Reviewed-by.  The patchset has also been in linux-next for a couple of
  weeks now and no conflict has been reported.  The framework has the
  backing of at least 5 platforms, though I can't say if/when they
  upstream their drivers (some businesses have 'changed')"

(Further acked-by by Arnd Bergmann and Suman Anna in the pull request
thread)

* 'mailbox-for-linus' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  dt: mailbox: add generic bindings
  doc: add documentation for mailbox framework
  mailbox: Introduce framework for mailbox
  mailbox: rename pl320-ipc specific mailbox.h

1 files changed, 38 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mailbox/mailbox.txt b/Documentation/devicetree/bindings/mailbox/mailbox.txt
new file mode 100644
index 000000000000..1a2cd3d266db
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/mailbox.txt
@@ -0,0 +1,38 @@
+* Generic Mailbox Controller and client driver bindings
+
+Generic binding to provide a way for Mailbox controller drivers to
+assign appropriate mailbox channel to client drivers.
+
+* Mailbox Controller
+
+Required property:
+- #mbox-cells: Must be at least 1. Number of cells in a mailbox
+                specifier.
+
+Example:
+        mailbox: mailbox {
+                ...
+                #mbox-cells = <1>;
+        };
+
+
+* Mailbox Client
+
+Required property:
+- mboxes: List of phandle and mailbox channel specifiers.
+
+Optional property:
+- mbox-names: List of identifier strings for each mailbox channel
+                required by the client. The use of this property
+                is discouraged in favor of using index in list of
+                'mboxes' while requesting a mailbox. Instead the
+                platforms may define channel indices, in DT headers,
+                to something legible.
+
+Example:
+        pwr_cntrl: power {
+                ...
+                mbox-names = "pwr-ctrl", "rpc";
+                mboxes = <&mailbox 0
+                        &mailbox 1>;
+        };