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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-21 18:21:19 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-21 18:21:19 (GMT) |
commit | 43d451f163c1b615c1bedef95258c49712679eeb (patch) | |
tree | 52ed78b04435ffbd663a902bbd5bdb69a65ad584 /Documentation/devicetree/bindings/mailbox | |
parent | 21d2271fd0812ebe3716cab0b48356837485a74d (diff) | |
parent | 9f3e3cacb2ffdefe28c7cf490bf543e4dcb2770a (diff) | |
download | linux-43d451f163c1b615c1bedef95258c49712679eeb.tar.xz |
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
Diffstat (limited to 'Documentation/devicetree/bindings/mailbox')
-rw-r--r-- | Documentation/devicetree/bindings/mailbox/mailbox.txt | 38 |
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 0000000..1a2cd3d --- /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>; + }; |