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    SubjectRe: [PATCH v3 03/22] dt-bindings: arm: scmi: add ARM MHU specific mailbox client bindings
    On Thu, Sep 28, 2017 at 02:11:27PM +0100, Sudeep Holla wrote:
    > This patch adds ARM MHU specific mailbox client bindings to support
    > SCMI. Since SCMI specification just requires doorbell mechanism from
    > mailbox controllers, we add mailbox data to specify the doorbell bit(s).
    >
    > Cc: Rob Herring <robh+dt@kernel.org>
    > Cc: Mark Rutland <mark.rutland@arm.com>
    > Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
    > ---
    > .../devicetree/bindings/arm/arm,mhu-scmi.txt | 19 +++++++++++++++++++
    > 1 file changed, 19 insertions(+)
    > create mode 100644 Documentation/devicetree/bindings/arm/arm,mhu-scmi.txt
    >
    > diff --git a/Documentation/devicetree/bindings/arm/arm,mhu-scmi.txt b/Documentation/devicetree/bindings/arm/arm,mhu-scmi.txt
    > new file mode 100644
    > index 000000000000..8c106f1cdeb8
    > --- /dev/null
    > +++ b/Documentation/devicetree/bindings/arm/arm,mhu-scmi.txt
    > @@ -0,0 +1,19 @@
    > +ARM MHU mailbox client bindings for SCMI Message Protocol
    > +----------------------------------------------------------
    > +
    > +This binding is intended to define the ARM MHU specific extensions to
    > +the generic SCMI bindings[2].
    > +
    > +Required properties:
    > +
    > +The scmi node with the following properties shall be under the /firmware/ node.
    > +
    > +- compatible : shall be "arm,scmi" and "arm,mhu-scmi"

    Most specific first.

    > +- mbox-data : For each phandle listed in mboxes property, an unsigned 32-bit
    > + data as expected by the mailbox controller

    Shouldn't that be cells as part of mboxes property?

    > +
    > +See [1] for details on all other required/optional properties of the generic
    > +mailbox controller and [2] for generic SCMI bindings.
    > +
    > +[1] Documentation/devicetree/bindings/mailbox/mailbox.txt
    > +[2] Documentation/devicetree/bindings/arm/arm,scmi.txt
    > --
    > 2.7.4
    >

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