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    Subject[PATCH v6 01/10] dt-bindings: opp: Introduce qcom-opp bindings
    Date
    On Qualcomm Technologies, Inc. platforms, an OPP node needs
    to describe an additional level/corner value that is then communicated
    to a remote microprocessor by the CPU, which then takes some
    actions (like adjusting voltage values across various rails)
    based on the value passed.

    Describe these bindings in the qcom-opp bindings document.

    Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
    Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
    Reviewed-by: Stephen Boyd <swboyd@chromium.org>
    Reviewed-by: Rob Herring <robh@kernel.org>
    ---
    .../devicetree/bindings/opp/qcom-opp.txt | 25 +++++++++++++++++++
    1 file changed, 25 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/opp/qcom-opp.txt

    diff --git a/Documentation/devicetree/bindings/opp/qcom-opp.txt b/Documentation/devicetree/bindings/opp/qcom-opp.txt
    new file mode 100644
    index 000000000000..db4d970c7ec7
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/opp/qcom-opp.txt
    @@ -0,0 +1,25 @@
    +Qualcomm OPP bindings to descibe OPP nodes with corner/level values
    +
    +OPP tables for devices on Qualcomm platforms require an additional
    +platform specific corner/level value to be specified.
    +This value is passed on to the RPM (Resource Power Manager) by
    +the CPU, which then takes the necessary actions to set a voltage
    +rail to an appropriate voltage based on the value passed.
    +
    +The bindings are based on top of the operating-points-v2 bindings
    +described in Documentation/devicetree/bindings/opp/opp.txt
    +Additional properties are described below.
    +
    +* OPP Table Node
    +
    +Required properties:
    +- compatible: Allow OPPs to express their compatibility. It should be:
    + "operating-points-v2-qcom-level"
    +
    +* OPP Node
    +
    +Required properties:
    +- qcom,level: On Qualcomm platforms an OPP node can describe a positive value
    +representing a corner/level that's communicated with a remote microprocessor
    +(usually called the RPM) which then translates it into a certain voltage on
    +a voltage rail.
    --
    QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
    of Code Aurora Forum, hosted by The Linux Foundation
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