linux-kernel - [PATCH 1/3] dt-bindings: thermal: Add SpacemiT K1 thermal sensor

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Message-Id: <20251127-b4-k1-thermal-v1-1-f32ce47b1aba@163.com>
Date: Thu, 27 Nov 2025 02:44:07 +0800
From: Shuwei Wu <shuweiwoo@....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>, Yixun Lan <dlan@...too.org>, 
 Shuwei Wu <shuweiwoo@....com>, Philipp Zabel <p.zabel@...gutronix.de>, 
 Paul Walmsley <pjw@...nel.org>, Palmer Dabbelt <palmer@...belt.com>, 
 Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>
Cc: linux-pm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-riscv@...ts.infradead.org, spacemit@...ts.linux.dev, 
 linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] dt-bindings: thermal: Add SpacemiT K1 thermal sensor

Document the SpacemiT K1 Thermal Sensor Unit (TSU), which supports
monitoring temperatures for five zones: soc, package, gpu, cluster0,
and cluster1.

Signed-off-by: Shuwei Wu <shuweiwoo@....com>
---
 .../bindings/thermal/spacemit,k1-thermal.yaml      | 76 ++++++++++++++++++++++
 1 file changed, 76 insertions(+)

diff --git a/Documentation/devicetree/bindings/thermal/spacemit,k1-thermal.yaml b/Documentation/devicetree/bindings/thermal/spacemit,k1-thermal.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..6057161b4b00c8f869d16199a1cc0fc964fed998
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/spacemit,k1-thermal.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/spacemit,k1-thermal.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SpacemiT K1 Thermal Sensor Unit
+
+description:
+  The SpacemiT K1 Thermal Sensor Unit (TSU) monitors the temperature of
+  the SoC using multiple internal sensors (e.g., soc, package, gpu, clusters).
+
+maintainers:
+  - Shuwei Wu <shuweiwoo@....com>
+
+$ref: thermal-sensor.yaml#
+
+properties:
+  compatible:
+    const: spacemit,k1-thermal
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Core clock for thermal sensor
+      - description: Bus clock for thermal sensor
+
+  clock-names:
+    items:
+      - const: core
+      - const: bus
+
+  interrupts:
+    maxItems: 1
+
+  resets:
+    items:
+      - description: Reset for the thermal sensor
+
+  "#thermal-sensor-cells":
+    const: 1
+    description:
+      The first cell indicates the sensor ID.
+      0 = soc
+      1 = package
+      2 = gpu
+      3 = cluster0
+      4 = cluster1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - resets
+  - "#thermal-sensor-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/spacemit,k1-syscon.h>
+
+    thermal@...18000 {
+        compatible = "spacemit,k1-thermal";
+        reg = <0xd4018000 0x100>;
+        clocks = <&syscon_apbc CLK_TSEN>,
+                 <&syscon_apbc CLK_TSEN_BUS>;
+        clock-names = "core", "bus";
+        interrupts = <61>;
+        resets = <&syscon_apbc RESET_TSEN>;
+        #thermal-sensor-cells = <1>;
+    };

-- 
2.51.0