diff options
Diffstat (limited to 'dts/Bindings/thermal/thermal-idle.yaml')
| -rw-r--r-- | dts/Bindings/thermal/thermal-idle.yaml | 160 |
1 files changed, 83 insertions, 77 deletions
diff --git a/dts/Bindings/thermal/thermal-idle.yaml b/dts/Bindings/thermal/thermal-idle.yaml index 6278ccf16f..1b77d542a7 100644 --- a/dts/Bindings/thermal/thermal-idle.yaml +++ b/dts/Bindings/thermal/thermal-idle.yaml @@ -5,7 +5,7 @@ $id: http://devicetree.org/schemas/thermal/thermal-idle.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Thermal idle cooling device binding +title: Thermal idle cooling device maintainers: - Daniel Lezcano <daniel.lezcano@linaro.org> @@ -37,8 +37,8 @@ properties: exit-latency-us: description: | - The exit latency constraint in microsecond for the injected idle state - for the device. It is the latency constraint to apply when selecting an + The exit latency constraint in microsecond for the injected idle state + for the device. It is the latency constraint to apply when selecting an idle state from among all the present ones. required: @@ -48,99 +48,105 @@ additionalProperties: false examples: - | - #include <dt-bindings/thermal/thermal.h> + /{ + #include <dt-bindings/thermal/thermal.h> - // Example: Combining idle cooling device on big CPUs with cpufreq cooling device - cpus { + compatible = "foo"; + model = "foo"; + #address-cells = <1>; + #size-cells = <1>; + + // Example: Combining idle cooling device on big CPUs with cpufreq cooling device + cpus { #address-cells = <2>; #size-cells = <0>; /* ... */ - cpu_b0: cpu@100 { - device_type = "cpu"; - compatible = "arm,cortex-a72"; - reg = <0x0 0x100>; - enable-method = "psci"; - capacity-dmips-mhz = <1024>; - dynamic-power-coefficient = <436>; - #cooling-cells = <2>; /* min followed by max */ - cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>; - thermal-idle { - #cooling-cells = <2>; - duration-us = <10000>; - exit-latency-us = <500>; - }; + cpu_b0: cpu@100 { + device_type = "cpu"; + compatible = "arm,cortex-a72"; + reg = <0x0 0x100>; + enable-method = "psci"; + capacity-dmips-mhz = <1024>; + dynamic-power-coefficient = <436>; + #cooling-cells = <2>; /* min followed by max */ + cpu-idle-states = <&CPU_SLEEP>, <&CLUSTER_SLEEP>; + cpu_b0_therm: thermal-idle { + #cooling-cells = <2>; + duration-us = <10000>; + exit-latency-us = <500>; + }; + }; + + cpu_b1: cpu@101 { + device_type = "cpu"; + compatible = "arm,cortex-a72"; + reg = <0x0 0x101>; + enable-method = "psci"; + capacity-dmips-mhz = <1024>; + dynamic-power-coefficient = <436>; + #cooling-cells = <2>; /* min followed by max */ + cpu-idle-states = <&CPU_SLEEP>, <&CLUSTER_SLEEP>; + cpu_b1_therm: thermal-idle { + #cooling-cells = <2>; + duration-us = <10000>; + exit-latency-us = <500>; }; + }; - cpu_b1: cpu@101 { - device_type = "cpu"; - compatible = "arm,cortex-a72"; - reg = <0x0 0x101>; - enable-method = "psci"; - capacity-dmips-mhz = <1024>; - dynamic-power-coefficient = <436>; - #cooling-cells = <2>; /* min followed by max */ - cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>; - thermal-idle { - #cooling-cells = <2>; - duration-us = <10000>; - exit-latency-us = <500>; - }; - }; - - /* ... */ + /* ... */ - }; + }; - /* ... */ + /* ... */ - thermal_zones { - cpu_thermal: cpu { + thermal_zones { + cpu_thermal: cpu { polling-delay-passive = <100>; polling-delay = <1000>; /* ... */ trips { - cpu_alert0: cpu_alert0 { - temperature = <65000>; - hysteresis = <2000>; - type = "passive"; - }; - - cpu_alert1: cpu_alert1 { - temperature = <70000>; - hysteresis = <2000>; - type = "passive"; - }; - - cpu_alert2: cpu_alert2 { - temperature = <75000>; - hysteresis = <2000>; - type = "passive"; - }; - - cpu_crit: cpu_crit { - temperature = <95000>; - hysteresis = <2000>; - type = "critical"; - }; + cpu_alert0: cpu_alert0 { + temperature = <65000>; + hysteresis = <2000>; + type = "passive"; + }; + + cpu_alert1: cpu_alert1 { + temperature = <70000>; + hysteresis = <2000>; + type = "passive"; + }; + + cpu_alert2: cpu_alert2 { + temperature = <75000>; + hysteresis = <2000>; + type = "passive"; + }; + + cpu_crit: cpu_crit { + temperature = <95000>; + hysteresis = <2000>; + type = "critical"; + }; }; cooling-maps { - map0 { - trip = <&cpu_alert1>; - cooling-device = <&{/cpus/cpu@100/thermal-idle} 0 15 >, - <&{/cpus/cpu@101/thermal-idle} 0 15>; - }; - - map1 { - trip = <&cpu_alert2>; - cooling-device = - <&cpu_b0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&cpu_b1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; - }; + map0 { + trip = <&cpu_alert1>; + cooling-device = <&cpu_b0_therm 0 15 >, + <&cpu_b1_therm 0 15>; + }; + + map1 { + trip = <&cpu_alert2>; + cooling-device = <&cpu_b0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, + <&cpu_b1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; }; - }; + }; + }; }; |