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arm64: dts: renesas: r9a07g044: Create thermal zone to support IPA

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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>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20211208142729.2456-3-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Biju Das 2021-12-08 14:27:29 +00:00 committed by Geert Uytterhoeven
parent 844dd43784
commit 88404c56fd
1 changed files with 16 additions and 0 deletions
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16
arch/arm64/boot/dts/renesas/r9a07g044.dtsi
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@ -88,6 +88,7 @@
compatible = "arm,cortex-a55";
reg = <0>;
device_type = "cpu";
#cooling-cells = <2>;
next-level-cache = <&L3_CA55>;
enable-method = "psci";
clocks = <&cpg CPG_CORE R9A07G044_CLK_I>;
@ -917,6 +918,15 @@
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 {
@ -924,6 +934,12 @@
hysteresis = <1000>;
type = "critical";
};
target: trip-point {
temperature = <100000>;
hysteresis = <1000>;
type = "passive";
};
};
};
};