Commit c2ff5c02 authored May 01, 2022 by Biju Das Committed by Geert Uytterhoeven May 06, 2022

arm64: dts: renesas: r9a07g043: Create thermal zone to support IPA



Setup a thermal zone driven by SoC temperature sensor.
Create passive trip points and bind them to CPUFreq cooling
device that supports power extension.

Based on the work done by Dien Pham <dien.pham.ry@renesas.com>
and others for r8a77990 SoC.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20220501112926.47024-6-biju.das.jz@bp.renesas.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

parent 91e548da

arch/arm64/boot/dts/renesas/r9a07g043.dtsi

+16 −0

Original line number	Diff line number	Diff line
		@@ -77,6 +77,7 @@
		compatible = "arm,cortex-a55";
		reg = <0>;
		device_type = "cpu";
		#cooling-cells = <2>;
		next-level-cache = <&L3_CA55>;
		enable-method = "psci";
		clocks = <&cpg CPG_CORE R9A07G043_CLK_I>;
		@@ -841,6 +842,15 @@
		polling-delay-passive = <250>;
		polling-delay = <1000>;
		thermal-sensors = <&tsu 0>;
		sustainable-power = <717>;

		cooling-maps {
		map0 {
		trip = <&target>;
		cooling-device = <&cpu0 0 2>;
		contribution = <1024>;
		};
		};

		trips {
		sensor_crit: sensor-crit {
		@@ -848,6 +858,12 @@
		hysteresis = <1000>;
		type = "critical";
		};

		target: trip-point {
		temperature = <100000>;
		hysteresis = <1000>;
		type = "passive";
		};
		};
		};
		};