[PATCH 5.10.y-cip 21/25] arm64: dts: renesas: r9a07g043: Create thermal zone to support IPA


Biju Das
 

commit c2ff5c0282f94c1f1f81007e1fa7378fe95f46d3 upstream.

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@...>
and others for r8a77990 SoC.

Signed-off-by: Biju Das <biju.das.jz@...>
Link: https://lore.kernel.org/r/20220501112926.47024-6-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@...>
Signed-off-by: Biju Das <biju.das.jz@...>
---
arch/arm64/boot/dts/renesas/r9a07g043.dtsi | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a07g043.dtsi b/arch/arm64/boot/dts/renesas/r9a07g043.dtsi
index cd7d30797eee..9048edb5e2b1 100644
--- a/arch/arm64/boot/dts/renesas/r9a07g043.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a07g043.dtsi
@@ -77,6 +77,7 @@ cpu0: cpu@0 {
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 @@ cpu-thermal {
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 @@ sensor_crit: sensor-crit {
hysteresis = <1000>;
type = "critical";
};
+
+ target: trip-point {
+ temperature = <100000>;
+ hysteresis = <1000>;
+ type = "passive";
+ };
};
};
};
--
2.25.1

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