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author | Jassi Brar <jaswinder.singh@linaro.org> | 2014-07-22 20:40:04 +0530 |
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committer | Jassi Brar <jaswinder.singh@linaro.org> | 2014-10-08 10:39:42 +0530 |
commit | 9f3e3cacb2ffdefe28c7cf490bf543e4dcb2770a (patch) | |
tree | 7df643d150b010a917f04b05b0822f59ebd4490c /Documentation/devicetree/bindings/mailbox | |
parent | 15320fbcec69dc3a4f217044ed848e4225397e25 (diff) | |
download | linux-9f3e3cacb2ffdefe28c7cf490bf543e4dcb2770a.tar.bz2 |
dt: mailbox: add generic bindings
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>
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 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>; + }; |