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author | Miquel Raynal <miquel.raynal@bootlin.com> | 2018-12-12 12:36:43 +0300 |
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committer | Eduardo Valentin <edubezval@gmail.com> | 2019-01-02 15:47:19 +0300 |
commit | bf9ff83f93baf4f404b7e3a90037604f86bea854 (patch) | |
tree | adc58b03b404553944cabc764606832cb2491ede | |
parent | 1bc7523817215f94d8597f4daccb17a394a5703a (diff) | |
download | linux-bf9ff83f93baf4f404b7e3a90037604f86bea854.tar.xz |
dt-bindings: cp110: document the thermal interrupt capabilities
The thermal IP can produce interrupts on overheat situation.
Describe them.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
-rw-r--r-- | Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt index 81ce742d2760..4db4119a6d19 100644 --- a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt +++ b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt @@ -199,6 +199,9 @@ Thermal: 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. + For common binding part and usage, refer to Documentation/devicetree/bindings/thermal/thermal.txt @@ -208,6 +211,11 @@ Required properties: - reg: register range associated with the thermal functions. Optional properties: +- interrupts-extended: overheat interrupt handle. Should point to + a line of the ICU-SEI irqchip (116 is what is usually used by the + firmware). The ICU-SEI will redirect towards interrupt line #37 of the + AP SEI which is shared across all CPs. + 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. @@ -220,6 +228,7 @@ CP110_LABEL(syscon1): system-controller@6f8000 { CP110_LABEL(thermal): thermal-sensor@70 { compatible = "marvell,armada-cp110-thermal"; reg = <0x70 0x10>; + interrupts-extended = <&CP110_LABEL(icu_sei) 116 IRQ_TYPE_LEVEL_HIGH>; #thermal-sensor-cells = <1>; }; }; |