Add i.MX8QXP CPU thermal zone support. Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx> --- Changes since V8: - remove "#cooling-cells" since it is already included in cpu-freq opp table patch: https://patchwork.kernel.org/patch/10825081/ --- arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 34 ++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi index 4c3dd95..85c90e0 100644 --- a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi @@ -10,6 +10,7 @@ #include <dt-bindings/gpio/gpio.h> #include <dt-bindings/interrupt-controller/arm-gic.h> #include <dt-bindings/pinctrl/pads-imx8qxp.h> +#include <dt-bindings/thermal/thermal.h> / { interrupt-parent = <&gic>; @@ -116,6 +117,12 @@ rtc: rtc { compatible = "fsl,imx8qxp-sc-rtc"; }; + + tsens: thermal-sensor { + compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal"; + #thermal-sensor-cells = <0>; + imx,sensor-resource-id = <IMX_SC_R_SYSTEM>; + }; }; timer { @@ -443,4 +450,31 @@ power-domains = <&pd IMX_SC_R_GPIO_7>; }; }; + + thermal_zones: thermal-zones { + cpu-thermal0 { + polling-delay-passive = <250>; + polling-delay = <2000>; + thermal-sensors = <&tsens 0>; + trips { + cpu_alert0: trip0 { + temperature = <107000>; + hysteresis = <2000>; + type = "passive"; + }; + cpu_crit0: trip1 { + temperature = <127000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + cooling-maps { + map0 { + trip = <&cpu_alert0>; + cooling-device = + <&A35_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + }; }; -- 2.7.4
