diff options
author | Jassi Brar <jaswinder.singh@linaro.org> | 2014-07-22 20:40:04 +0530 |
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committer | Mark Brown <broonie@kernel.org> | 2014-11-21 23:41:59 +0000 |
commit | c583b1fec06304d6128f02b1bffff27202c66abf (patch) | |
tree | 579e2e76c12be0fd2a2769c68d8767018f117ae7 | |
parent | f5868ee1cc8b4afed64269d658e8bfe3931ee023 (diff) |
dt: mailbox: add generic bindingsv3.10/topic/mailbox
Define generic bindings for the framework clients to
request mailbox channels.
Reviewed-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
(cherry picked from commit 9f3e3cacb2ffdefe28c7cf490bf543e4dcb2770a)
Signed-off-by: Mark Brown <broonie@kernel.org>
-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 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>; + }; |