On Sat, Apr 21, 2018 at 05:12:45PM +0200, Miquel Raynal wrote:
> Explain the thermal bindings now that the thermal IP is described being
> inside of a system controller. Add a reference to the thermal-zone node.
>
> Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
> ---
> .../arm/marvell/ap806-system-controller.txt | 43 ++++++++++++++++++++++
> 1 file changed, 43 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
> index a856eb9a4e05..c95f3ac5c728 100644
> --- a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
> +++ b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
> @@ -11,6 +11,9 @@ For the top level node:
> - compatible: must be: "syscon", "simple-mfd";
> - reg: register area of the AP806 system controller
>
> +SYSTEM CONTROLLER 0
> +===================
> +
> Clocks:
> -------
>
> @@ -98,3 +101,43 @@ ap_syscon: system-controller@6f4000 {
> gpio-ranges = <&ap_pinctrl 0 0 19>;
> };
> };
> +
> +SYSTEM CONTROLLER 1
> +===================
> +
> +Thermal:
> +--------
> +
> +For common binding part and usage, refer to
> +Documentation/devicetree/bindings/thermal/thermal.txt
> +
> +The thermal IP can probe the temperature all around the processor. It
> +may feature several channels, each of them wired to one sensor.
> +
> +It is possible to setup an overheat interrupt by giving at least one
> +critical point to any subnode of the thermal-zone node.
> +
> +Required properties:
> +- compatible: "marvell,armada-ap806-thermal"
> +
> +Optional properties:
> +- interrupt-parent/interrupts: overheat interrupt handle. Should point to
> + line 18 of the SEI irqchip.
> + See interrupt-controller/interrupts.txt
> +- #thermal-sensor-cells: shall be <1> when thermal-zones subnodes refer
> + to this IP and represents the channel ID. There is one sensor per
> + channel. O refers to the thermal IP internal channel, while positive
> + IDs refer to each CPU.
> +
> +Example:
> +ap_syscon1: system-controller@6f8000 {
> + compatible = "syscon", "simple-mfd";
> + reg = <0x6f8000 0x1000>;
> +
> + ap_thermal: ap-thermal {
> + compatible = "marvell,armada-ap806-thermal";
Is there a register range associated with the thermal functions?
> + interrupt-parent = <&sei>;
> + interrupts = <18>;
> + #thermal-sensor-cells = <1>;
> + };
> +};
> --
> 2.14.1
>
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