Re: [PATCH v3 04/10] dt-bindings: soc: qcom: Add AOSS QMP binding

Stephen Boyd
2019-01-22T19:04:22Z

Quoting Bjorn Andersson (2019-01-21 21:51:06)
> Add binding for the QMP based side-channel communication mechanism to
> the AOSS, which is used to control resources not exposed through the
> RPMh interface.
>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Reviewed-by: Stephen Boyd <swboyd@chromium.org>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> ---
>
> Changes since v2:
> - Update indentation of example
> - Add colling device subnodes to the description
>
> .../bindings/soc/qcom/qcom,aoss-qmp.txt | 75 +++++++++++++++++++
> include/dt-bindings/power/qcom-aoss-qmp.h | 15 ++++
> 2 files changed, 90 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt
> create mode 100644 include/dt-bindings/power/qcom-aoss-qmp.h
>
> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt
> new file mode 100644
> index 000000000000..881dc8c7907a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt
> @@ -0,0 +1,75 @@
> +Qualcomm Always-On Subsystem side channel binding
> +
> +This binding describes the hardware component responsible for side channel
> +requests to the always-on subsystem (AOSS), used for certain power management
> +requests that is not handled by the standard RPMh interface. Each client in the
> +SoC has it's own block of message RAM and IRQ for communication with the AOSS.
> +The protocol used to communicate in the message RAM is known as QMP.

Just curious if QMP is "Qualcomm Messaging Protocol"? I don't think it's
ever spelled out in this patchset.