diff options
Diffstat (limited to 'Documentation/devicetree/bindings/thermal/thermal-zones.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/thermal/thermal-zones.yaml | 37 |
1 files changed, 27 insertions, 10 deletions
diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml index b8515d3eeaa2..68398e7e8655 100644 --- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml +++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml @@ -5,10 +5,10 @@ $id: http://devicetree.org/schemas/thermal/thermal-zones.yaml# $schema: http://devicetree.org/meta-schemas/base.yaml# -title: Thermal zone binding +title: Thermal zone maintainers: - - Amit Kucheria <amitk@kernel.org> + - Daniel Lezcano <daniel.lezcano@linaro.org> description: | Thermal management is achieved in devicetree by describing the sensor hardware @@ -75,6 +75,22 @@ patternProperties: framework and assumes that the thermal sensors in this zone support interrupts. + critical-action: + $ref: /schemas/types.yaml#/definitions/string + description: | + The action the OS should perform after the critical temperature is reached. + By default the system will shutdown as a safe action to prevent damage + to the hardware, if the property is not set. + The shutdown action should be always the default and preferred one. + Choose 'reboot' with care, as the hardware may be in thermal stress, + thus leading to infinite reboots that may cause damage to the hardware. + Make sure the firmware/bootloader will act as the last resort and take + over the thermal control. + + enum: + - shutdown + - reboot + thermal-sensors: $ref: /schemas/types.yaml#/definitions/phandle-array maxItems: 1 @@ -171,6 +187,7 @@ patternProperties: cooling-maps: type: object + additionalProperties: false description: This node describes the action to be taken when a thermal zone crosses one of the temperature thresholds described in the trips @@ -199,12 +216,11 @@ patternProperties: contribution: $ref: /schemas/types.yaml#/definitions/uint32 - minimum: 0 - maximum: 100 description: - The percentage contribution of the cooling devices at the - specific trip temperature referenced in this map - to this thermal zone + The cooling contribution to the thermal zone of the referred + cooling device at the referred trip point. The contribution is + a ratio of the sum of all cooling contributions within a + thermal zone. required: - trip @@ -212,19 +228,20 @@ patternProperties: additionalProperties: false required: - - polling-delay - - polling-delay-passive - thermal-sensors - trips + additionalProperties: false +additionalProperties: false + examples: - | #include <dt-bindings/interrupt-controller/arm-gic.h> #include <dt-bindings/thermal/thermal.h> // Example 1: SDM845 TSENS - soc: soc@0 { + soc { #address-cells = <2>; #size-cells = <2>; |