Commit 11699fd5 authored by Anson Huang's avatar Anson Huang Committed by Shawn Guo
Browse files

arm64: dts: imx8mm: Add thermal zone support 



Add thermal zone and tmu node to support i.MX8MM thermal
driver, ONLY cpu thermal zone is supported, and cpu cooling
is also added.

Signed-off-by: default avatarAnson Huang <Anson.Huang@nxp.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 1436b5bc

arch/arm64/boot/dts/freescale/imx8mm.dtsi

+43 −0
Original line number Diff line number Diff line
@@ -68,6 +68,7 @@ 
			nvmem-cells = <&cpu_speed_grade>;

			nvmem-cell-names = "speed_grade";

			cpu-idle-states = <&cpu_pd_wait>;

			#cooling-cells = <2>;

		};



		A53_1: cpu@1 {
@@ -80,6 +81,7 @@ 
			next-level-cache = <&A53_L2>;

			operating-points-v2 = <&a53_opp_table>;

			cpu-idle-states = <&cpu_pd_wait>;

			#cooling-cells = <2>;

		};



		A53_2: cpu@2 {
@@ -92,6 +94,7 @@ 
			next-level-cache = <&A53_L2>;

			operating-points-v2 = <&a53_opp_table>;

			cpu-idle-states = <&cpu_pd_wait>;

			#cooling-cells = <2>;

		};



		A53_3: cpu@3 {
@@ -104,6 +107,7 @@ 
			next-level-cache = <&A53_L2>;

			operating-points-v2 = <&a53_opp_table>;

			cpu-idle-states = <&cpu_pd_wait>;

			#cooling-cells = <2>;

		};



		A53_L2: l2-cache0 {
@@ -204,6 +208,38 @@ 
		arm,no-tick-in-suspend;

	};



	thermal-zones {

		cpu-thermal {

			polling-delay-passive = <250>;

			polling-delay = <2000>;

			thermal-sensors = <&tmu>;

			trips {

				cpu_alert0: trip0 {

					temperature = <85000>;

					hysteresis = <2000>;

					type = "passive";

				};



				cpu_crit0: trip1 {

					temperature = <95000>;

					hysteresis = <2000>;

					type = "critical";

				};

			};



			cooling-maps {

				map0 {

					trip = <&cpu_alert0>;

					cooling-device =

						<&A53_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,

						<&A53_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,

						<&A53_2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,

						<&A53_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;

				};

			};

		};

	};



	usbphynop1: usbphynop1 {

		compatible = "usb-nop-xceiv";

		clocks = <&clk IMX8MM_CLK_USB_PHY_REF>;
@@ -363,6 +399,13 @@ 
				gpio-ranges = <&iomuxc 0 119 30>;

			};



			tmu: tmu@30260000 {

				compatible = "fsl,imx8mm-tmu";

				reg = <0x30260000 0x10000>;

				clocks = <&clk IMX8MM_CLK_TMU_ROOT>;

				#thermal-sensor-cells = <0>;

			};



			wdog1: watchdog@30280000 {

				compatible = "fsl,imx8mm-wdt", "fsl,imx21-wdt";

				reg = <0x30280000 0x10000>;

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