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dt-bindings: ap806: document the thermal interrupt capabilities

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The thermal IP can produce interrupts on overheat situation.
Describe them.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Miquel Raynal 2018-12-12 10:36:42 +01:00 committed by Eduardo Valentin
parent ad3e72030b
commit 1bc7523817
1 changed files with 7 additions and 0 deletions
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7
Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
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@ -114,12 +114,17 @@ 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: must be one of:
* marvell,armada-ap806-thermal
- reg: register range associated with the thermal functions.
Optional properties:
- 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
@ -133,6 +138,8 @@ ap_syscon1: system-controller@6f8000 {
ap_thermal: thermal-sensor@80 {
compatible = "marvell,armada-ap806-thermal";
reg = <0x80 0x10>;
interrupt-parent = <&sei>;
interrupts = <18>;
#thermal-sensor-cells = <1>;
};
};