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    Subject[PATCH 1/2] dt-bindings: power: Add ZynqMP power domain bindings
    Date
    Add documentation to describe ZynqMP power domain bindings.

    Signed-off-by: Jolly Shah <jollys@xilinx.com>
    Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
    ---
    .../devicetree/bindings/power/zynqmp-genpd.txt | 46 ++++++++++++++++++++++
    1 file changed, 46 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/power/zynqmp-genpd.txt

    diff --git a/Documentation/devicetree/bindings/power/zynqmp-genpd.txt b/Documentation/devicetree/bindings/power/zynqmp-genpd.txt
    new file mode 100644
    index 0000000..25f9711
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/power/zynqmp-genpd.txt
    @@ -0,0 +1,46 @@
    +Device Tree bindings for Xilinx Zynq MPSoC PM domains
    +
    +The binding for zynqmp-genpd follow the common generic PM domain binding[1].
    +
    +[1] Documentation/devicetree/bindings/power/power_domain.txt
    +
    +== Zynq MPSoC Generic PM Domain Node ==
    +
    +Required properties:
    + - compatible: Must be: "xlnx,zynqmp-genpd"
    +
    +This node contains a number of subnodes, each representing a single PM domain
    +that PM domain consumer devices reference.
    +
    +== PM Domain Nodes ==
    +
    +Required properties:
    + - #power-domain-cells: Number of cells in a PM domain specifier. Must be 0.
    + - pd-id: List of domain identifiers of as defined by platform firmware. These
    + identifiers are passed to the PM firmware.
    +
    +Example:
    + zynqmp-genpd {
    + compatible = "xlnx,zynqmp-genpd";
    +
    + pd_usb0: pd-usb0 {
    + pd-id = <22>;
    + #power-domain-cells = <0>;
    + };
    +
    + pd_sata: pd-sata {
    + pd-id = <28>;
    + #power-domain-cells = <0>;
    + };
    +
    + pd_gpu: pd-gpu {
    + pd-id = <58 20 21>;
    + #power-domain-cells = <0x0>;
    + };
    + };
    +
    + sata0: ahci@SATA_AHCI_HBA {
    + ...
    + power-domains = <&pd_sata>;
    + ...
    + };
    --
    2.7.4
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