On Thu, Mar 12, 2015 at 1:31 PM, Russell King
<[email protected]> wrote:
> Add the required DT binding documentation for the Marvell PMU driver.
>
> Signed-off-by: Russell King <[email protected]>
> ---
> Documentation/devicetree/bindings/soc/dove/pmu.txt | 49
> ++++++++++++++++++++++
> 1 file changed, 49 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/soc/dove/pmu.txt
>
> diff --git a/Documentation/devicetree/bindings/soc/dove/pmu.txt
> b/Documentation/devicetree/bindings/soc/dove/pmu.txt
> new file mode 100644
> index 000000000000..9617aa298dd4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/dove/pmu.txt
> @@ -0,0 +1,49 @@
> +Device Tree bindings for Marvell PMU
> +
> +Required properties:
> + - compatible: value should be "marvell,dove-pmu".
> + - reg: two base addresses and sizes of the PM controller and PMU.
> + - interrupts: single interrupt number for the PMU interrupt
> + - interrupt-controller: must be specified as the PMU itself is an
> + interrupt controller.
Is it always an interrupt controller or just in low power modes like
ones typically tacked on to GICs?
> + - #interrupt-cells: must be 1.
> + - #reset-cells: must be 1.
> +
> +Optional properties:
> + - None
> +
> +Domain descriptions are listed as child nodes of the power management
"Power domain descriptions..." just to be clear.
> +node. Each domain has the following properties:
> +
> +Required properties:
> + - #power-domain-cells: must be 0.
> +
> +Optional properties:
> + - marvell,pmu_pwr_mask: specifies the mask value for PMU power register
> + - marvell,pmu_iso_mask: specifies the mask value for PMU isolation register
> + - resets: points to the reset manager (PMU node) and reset index.
> +
> +Example:
> +
> + pmu: power-management@d0000 {
> + compatible = "marvell,dove-pmu";
> + reg = <0xd0000 0x8000>, <0xd8000 0x8000>;
> + interrupts = <33>;
> + interrupt-controller;
> + #interrupt-cells = <1>;
> + #reset-cells = <1>;
> +
> + vpu_domain: vpu-domain {
> + #power-domain-cells = <0>;
> + marvell,pmu_pwr_mask = <0x00000008>;
> + marvell,pmu_iso_mask = <0x00000001>;
> + resets = <&pmu 16>;
> + };
> +
> + gpu_domain: gpu-domain {
> + #power-domain-cells = <0>;
> + marvell,pmu_pwr_mask = <0x00000004>;
> + marvell,pmu_iso_mask = <0x00000002>;
> + resets = <&pmu 18>;
> + };
> + };
> --
> 1.8.3.1
>
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