From 8438bfda9d76815707a7823ab91a944eea6d6266 Mon Sep 17 00:00:00 2001 From: Biju Das Date: Fri, 13 Sep 2019 09:50:07 +0100 Subject: [PATCH] arm64: dts: renesas: r8a774c0: 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 and others for r8a77990 SoC. Signed-off-by: Biju Das Reviewed-by: Simon Horman Link: https://lore.kernel.org/r/1568364608-46548-1-git-send-email-biju.das@bp.renesas.com Signed-off-by: Geert Uytterhoeven --- arch/arm64/boot/dts/renesas/r8a774c0.dtsi | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi index a1c2de9..764df4c 100644 --- a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi @@ -73,6 +73,7 @@ compatible = "arm,cortex-a53"; reg = <0>; device_type = "cpu"; + #cooling-cells = <2>; power-domains = <&sysc R8A774C0_PD_CA53_CPU0>; next-level-cache = <&L2_CA53>; enable-method = "psci"; @@ -1905,18 +1906,30 @@ thermal-zones { cpu-thermal { polling-delay-passive = <250>; - polling-delay = <1000>; - thermal-sensors = <&thermal>; + polling-delay = <0>; + thermal-sensors = <&thermal 0>; + sustainable-power = <717>; cooling-maps { + map0 { + trip = <&target>; + cooling-device = <&a53_0 0 2>; + contribution = <1024>; + }; }; trips { - cpu-crit { + sensor1_crit: sensor1-crit { temperature = <120000>; hysteresis = <2000>; type = "critical"; }; + + target: trip-point1 { + temperature = <100000>; + hysteresis = <2000>; + type = "passive"; + }; }; }; }; -- 2.7.4