On Thu, Aug 16, 2018 at 12:21:42PM -0700, Jolly Shah wrote:
> From: Rajan Vaja <rajan.v...@xilinx.com>
>
> Add documentation to describe ZynqMP power domain bindings.
>
> Signed-off-by: Rajan Vaja <rajan.v...@xilinx.com>
> Signed-off-by: Jolly Shah <jol...@xilinx.com>
> ---
> .../firmware/xilinx/xlnx,zynqmp-firmware.txt | 47
> ++++++++++++++++++++++
This should be with all the other power domain bindings.
> 1 file changed, 47 insertions(+)
>
> diff --git
> a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt
> b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt
> index d215d15..5fa10a0 100644
> ---
> a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt
> +++
> b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt
> @@ -64,6 +64,29 @@ Output clocks are registered based on clock information
> received
> from firmware. Output clocks indexes are mentioned in
> include/dt-bindings/clock/xlnx,zynqmp-clk.h.
>
> +-----------------------------------------------------------
> +Device Tree Bindings for the Xilinx Zynq MPSoC PM domains
> +-----------------------------------------------------------
> +The binding for zynqmp-power-controller 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-power-controller"
> +
> +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: Domain identifier as defined by platform firmware.
> + This identifier is passed to the PM firmware.
Make this a cell for the power domain consumer.
> +
> -------
> Example
> -------
> @@ -78,5 +101,29 @@ firmware {
> clocks = <&pss_ref_clk>, <&video_clk>,
> <&pss_alt_ref_clk>, <&aux_ref_clk>, <>_crx_ref_clk>;
> clock-names = "pss_ref_clk", "video_clk",
> "pss_alt_ref_clk","aux_ref_clk", "gt_crx_ref_clk";
> };
> + zynqmp-power-controller {
> + compatible = "xlnx,zynqmp-power-controller";
> +
> + 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 = <0>;
> + };
> + };
> };
> };
> +
> +sata0: ahci@SATA_AHCI_HBA {
Don't use defines in unit-addresses (or reg for that matter). It's
pointless indirection.
> + ...
> + power-domains = <&pd_sata>;
> + ...
> +};
> --
> 2.7.4
>
