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dt-bindings: thermal: Add binding document for SR thermal

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Add binding document for supported thermal implementation
in Stingray.

Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com>
Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Pramod Kumar 2019-01-03 14:25:32 +05:30 committed by Eduardo Valentin
parent 8834f5600c
commit b8bdf09259
1 changed files with 105 additions and 0 deletions
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105
Documentation/devicetree/bindings/thermal/brcm,sr-thermal.txt Normal file
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* Broadcom Stingray Thermal
This binding describes thermal sensors that is part of Stingray SoCs.
Required properties:
- compatible : Must be "brcm,sr-thermal"
- reg : Memory where tmon data will be available.
- brcm,tmon-mask: A one cell bit mask of valid TMON sources.
Each bit represents single TMON source.
- #thermal-sensor-cells : Thermal sensor phandler
- polling-delay: Max number of milliseconds to wait between polls.
- thermal-sensors: A list of thermal sensor phandles and specifier.
specifier value is tmon ID and it should be
in correspond with brcm,tmon-mask.
- temperature: trip temperature threshold in millicelsius.
Example:
tmons {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0x0 0x8f100000 0x100>;
tmon: tmon@0 {
compatible = "brcm,sr-thermal";
reg = <0x0 0x40>;
brcm,tmon-mask = <0x3f>;
#thermal-sensor-cells = <1>;
};
};
thermal-zones {
ihost0_thermal: ihost0-thermal {
polling-delay-passive = <0>;
polling-delay = <1000>;
thermal-sensors = <&tmon 0>;
trips {
cpu-crit {
temperature = <105000>;
hysteresis = <0>;
type = "critical";
};
};
};
ihost1_thermal: ihost1-thermal {
polling-delay-passive = <0>;
polling-delay = <1000>;
thermal-sensors = <&tmon 1>;
trips {
cpu-crit {
temperature = <105000>;
hysteresis = <0>;
type = "critical";
};
};
};
ihost2_thermal: ihost2-thermal {
polling-delay-passive = <0>;
polling-delay = <1000>;
thermal-sensors = <&tmon 2>;
trips {
cpu-crit {
temperature = <105000>;
hysteresis = <0>;
type = "critical";
};
};
};
ihost3_thermal: ihost3-thermal {
polling-delay-passive = <0>;
polling-delay = <1000>;
thermal-sensors = <&tmon 3>;
trips {
cpu-crit {
temperature = <105000>;
hysteresis = <0>;
type = "critical";
};
};
};
crmu_thermal: crmu-thermal {
polling-delay-passive = <0>;
polling-delay = <1000>;
thermal-sensors = <&tmon 4>;
trips {
cpu-crit {
temperature = <105000>;
hysteresis = <0>;
type = "critical";
};
};
};
nitro_thermal: nitro-thermal {
polling-delay-passive = <0>;
polling-delay = <1000>;
thermal-sensors = <&tmon 5>;
trips {
cpu-crit {
temperature = <105000>;
hysteresis = <0>;
type = "critical";
};
};
};
};