[PATCH v5 17/17] ARM: dts: microchip: sama7d65: add thermal zones node
Varshini Rajendran <[email protected]>
| Newsgroups | org.kernel.vger.linux-iio,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
Add thermal zones node for SAMA7D65 with trip points for passive cooling and critical shutdown. Signed-off-by: Varshini Rajendran <[email protected]> Reviewed-by: Claudiu Beznea <[email protected]> --- arch/arm/boot/dts/microchip/sama7d65.dtsi | 42 +++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/arch/arm/boot/dts/microchip/sama7d65.dtsi b/arch/arm/boot/dts/microchip/sama7d65.dtsi index 3aba73983c79..7743f9e8f692 100644 --- a/arch/arm/boot/dts/microchip/sama7d65.dtsi +++ b/arch/arm/boot/dts/microchip/sama7d65.dtsi @@ -16,6 +16,7 @@ #include <dt-bindings/interrupt-controller/irq.h> #include <dt-bindings/mfd/at91-usart.h> #include <dt-bindings/nvmem/microchip,sama7g5-otpc.h> +#include <dt-bindings/thermal/thermal.h> / { model = "Microchip SAMA7D65 family SoC"; @@ -38,6 +39,7 @@ cpu0: cpu@0 { i-cache-size = <0x8000>; // L1, 32 KB next-level-cache = <&L2>; operating-points-v2 = <&cpu_opp_table>; + #cooling-cells = <2>; /* min followed by max */ L2: l2-cache { compatible = "cache"; @@ -126,6 +128,46 @@ thermal_sensor: thermal-sensor { io-channel-names = "sensor-channel"; }; + thermal-zones { + cpu_thermal: cpu-thermal { + polling-delay-passive = <1000>; + polling-delay = <5000>; + thermal-sensors = <&thermal_sensor>; + + trips { + cpu_normal: cpu-alert0 { + temperature = <90000>; + hysteresis = <0>; + type = "passive"; + }; + + cpu_hot: cpu-alert1 { + temperature = <95000>; + hysteresis = <0>; + type = "passive"; + }; + + cpu_critical: cpu-critical { + temperature = <100000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + map0 { + trip = <&cpu_normal>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + + map1 { + trip = <&cpu_hot>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + }; + soc { compatible = "simple-bus"; ranges; -- 2.34.1