path: root/Documentation/devicetree/bindings/mailbox
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authorLinus Torvalds <torvalds@linux-foundation.org>2014-10-21 11:21:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-21 11:21:19 -0700
commit43d451f163c1b615c1bedef95258c49712679eeb (patch)
tree52ed78b04435ffbd663a902bbd5bdb69a65ad584 /Documentation/devicetree/bindings/mailbox
parent21d2271fd0812ebe3716cab0b48356837485a74d (diff)
parent9f3e3cacb2ffdefe28c7cf490bf543e4dcb2770a (diff)
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
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+* 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.
+ 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.
+ pwr_cntrl: power {
+ ...
+ mbox-names = "pwr-ctrl", "rpc";
+ mboxes = <&mailbox 0
+ &mailbox 1>;
+ };

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