[cip-dev] [PATCH 4.19.y 28/29] arm64: dts: renesas: r8a774c0: Add thermal support

Fabrizio Castro fabrizio.castro at bp.renesas.com
Wed May 1 10:22:22 UTC 2019


commit 6e9dd34eb6b0ffb9e5ff7f18c58193737d24cb37 upstream.

This patch adds the thermal device node and the thermal-zones
node to the SoC specific dtsi for the RZ/G2E.

Signed-off-by: Fabrizio Castro <fabrizio.castro at bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas at glider.be>
Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a774c0.dtsi | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
index 54ab2ee..c47ca0b 100644
--- a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
@@ -325,6 +325,18 @@
 			#power-domain-cells = <1>;
 		};
 
+		thermal: thermal at e6190000 {
+			compatible = "renesas,thermal-r8a774c0";
+			reg = <0 0xe6190000 0 0x10>, <0 0xe6190100 0 0x38>;
+			interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 522>;
+			power-domains = <&sysc R8A774C0_PD_ALWAYS_ON>;
+			resets = <&cpg 522>;
+			#thermal-sensor-cells = <0>;
+		};
+
 		intc_ex: interrupt-controller at e61c0000 {
 			compatible = "renesas,intc-ex-r8a774c0", "renesas,irqc";
 			#interrupt-cells = <2>;
@@ -1638,6 +1650,25 @@
 		};
 	};
 
+	thermal-zones {
+		cpu-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&thermal>;
+
+			trips {
+				cpu-crit {
+					temperature = <120000>;
+					hysteresis = <2000>;
+					type = "critical";
+				};
+			};
+
+			cooling-maps {
+			};
+		};
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts-extended = <&gic GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
-- 
2.7.4



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