linux-kernel - [PATCH v2 2/3] riscv: dts: sophgo: cv18xx: Add sensor device and thermal zone

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Date: Tue,  4 Jun 2024 12:54:20 +0000
From: Haylen Chu <heylenay@...look.com>
To: "Rafael J. Wysocki" <rafael@...nel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Zhang Rui <rui.zhang@...el.com>,
	Lukasz Luba <lukasz.luba@....com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...look.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Jisheng Zhang <jszhang@...nel.org>
Cc: linux-pm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	Haylen Chu <heylenay@...look.com>
Subject: [PATCH v2 2/3] riscv: dts: sophgo: cv18xx: Add sensor device and thermal zone

Add common sensor device Sophgo CV18xx SoCs and thermal zone for
CV1800b SoCs.

Signed-off-by: Haylen Chu <heylenay@...look.com>
---
 arch/riscv/boot/dts/sophgo/cv1800b.dtsi | 30 +++++++++++++++++++++++++
 arch/riscv/boot/dts/sophgo/cv18xx.dtsi  |  8 +++++++
 2 files changed, 38 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
index ec9530972ae2..9e669ab35380 100644
--- a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
@@ -12,6 +12,34 @@ memory@...00000 {
 		device_type = "memory";
 		reg = <0x80000000 0x4000000>;
 	};
+
+	thermal-zones {
+		soc-thermal-0 {
+			polling-delay-passive   = <1000>;
+			polling-delay           = <1000>;
+			thermal-sensors         = <&soc_temp>;
+
+			trips {
+				soc_passive: soc-passive {
+					temperature     = <75000>;
+					hysteresis      = <5000>;
+					type            = "passive";
+				};
+
+				soc_hot: soc-hot {
+					temperature     = <85000>;
+					hysteresis      = <5000>;
+					type            = "hot";
+				};
+
+				soc_critical: soc-critical {
+					temperature     = <100000>;
+					hysteresis      = <0>;
+					type            = "critical";
+				};
+			};
+		};
+	};
 };
 
 &plic {
@@ -25,3 +53,5 @@ &clint {
 &clk {
 	compatible = "sophgo,cv1800-clk";
 };
+
+
diff --git a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
index 891932ae470f..b165866d4cad 100644
--- a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
@@ -310,5 +310,13 @@ clint: timer@...00000 {
 			reg = <0x74000000 0x10000>;
 			interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>;
 		};
+
+		soc_temp: thermal-sensor@...0000 {
+			compatible = "sophgo,cv180x-thermal";
+			reg = <0x30e0000 0x100>;
+			clocks = <&clk CLK_TEMPSEN>;
+			clock-names = "clk_tempsen";
+			#thermal-sensor-cells = <0>;
+		};
 	};
 };
-- 
2.45.2