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Message-ID: <20251013215810.783006-1-robh@kernel.org>
Date: Mon, 13 Oct 2025 16:58:09 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: "Rafael J. Wysocki" <rafael@...nel.org>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Zhang Rui <rui.zhang@...el.com>,
Lukasz Luba <lukasz.luba@....com>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Ray Jui <rjui@...adcom.com>,
Scott Branden <sbranden@...adcom.com>
Cc: linux-pm@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: thermal: Convert brcm,sr-thermal to DT schema
Convert the brcm,sr-thermal binding to DT schema format. It's a
straight-forward conversion. "polling-delay", "thermal-sensors", and
"temperature" all apply to the thermal zones, not the sensor node.
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
.../bindings/thermal/brcm,sr-thermal.txt | 105 ---------------
.../bindings/thermal/brcm,sr-thermal.yaml | 121 ++++++++++++++++++
2 files changed, 121 insertions(+), 105 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/thermal/brcm,sr-thermal.txt
create mode 100644 Documentation/devicetree/bindings/thermal/brcm,sr-thermal.yaml
diff --git a/Documentation/devicetree/bindings/thermal/brcm,sr-thermal.txt b/Documentation/devicetree/bindings/thermal/brcm,sr-thermal.txt
deleted file mode 100644
index 3ab330219d45..000000000000
--- a/Documentation/devicetree/bindings/thermal/brcm,sr-thermal.txt
+++ /dev/null
@@ -1,105 +0,0 @@
-* Broadcom Stingray Thermal
-
-This binding describes thermal sensors that is part of Stingray SoCs.
-
-Required properties:
-- compatible : Must be "brcm,sr-thermal"
-- reg : Memory where tmon data will be available.
-- brcm,tmon-mask: A one cell bit mask of valid TMON sources.
- Each bit represents single TMON source.
-- #thermal-sensor-cells : Thermal sensor phandler
-- polling-delay: Max number of milliseconds to wait between polls.
-- thermal-sensors: A list of thermal sensor phandles and specifier.
- specifier value is tmon ID and it should be
- in correspond with brcm,tmon-mask.
-- temperature: trip temperature threshold in millicelsius.
-
-Example:
- tmons {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0x0 0x0 0x8f100000 0x100>;
-
- tmon: tmon@0 {
- compatible = "brcm,sr-thermal";
- reg = <0x0 0x40>;
- brcm,tmon-mask = <0x3f>;
- #thermal-sensor-cells = <1>;
- };
- };
-
- thermal-zones {
- ihost0_thermal: ihost0-thermal {
- polling-delay-passive = <0>;
- polling-delay = <1000>;
- thermal-sensors = <&tmon 0>;
- trips {
- cpu-crit {
- temperature = <105000>;
- hysteresis = <0>;
- type = "critical";
- };
- };
- };
- ihost1_thermal: ihost1-thermal {
- polling-delay-passive = <0>;
- polling-delay = <1000>;
- thermal-sensors = <&tmon 1>;
- trips {
- cpu-crit {
- temperature = <105000>;
- hysteresis = <0>;
- type = "critical";
- };
- };
- };
- ihost2_thermal: ihost2-thermal {
- polling-delay-passive = <0>;
- polling-delay = <1000>;
- thermal-sensors = <&tmon 2>;
- trips {
- cpu-crit {
- temperature = <105000>;
- hysteresis = <0>;
- type = "critical";
- };
- };
- };
- ihost3_thermal: ihost3-thermal {
- polling-delay-passive = <0>;
- polling-delay = <1000>;
- thermal-sensors = <&tmon 3>;
- trips {
- cpu-crit {
- temperature = <105000>;
- hysteresis = <0>;
- type = "critical";
- };
- };
- };
- crmu_thermal: crmu-thermal {
- polling-delay-passive = <0>;
- polling-delay = <1000>;
- thermal-sensors = <&tmon 4>;
- trips {
- cpu-crit {
- temperature = <105000>;
- hysteresis = <0>;
- type = "critical";
- };
- };
- };
- nitro_thermal: nitro-thermal {
- polling-delay-passive = <0>;
- polling-delay = <1000>;
- thermal-sensors = <&tmon 5>;
- trips {
- cpu-crit {
- temperature = <105000>;
- hysteresis = <0>;
- type = "critical";
- };
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/thermal/brcm,sr-thermal.yaml b/Documentation/devicetree/bindings/thermal/brcm,sr-thermal.yaml
new file mode 100644
index 000000000000..576a627cd599
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/brcm,sr-thermal.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/brcm,sr-thermal.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Stingray Thermal Sensors
+
+maintainers:
+ - Ray Jui <rjui@...adcom.com>
+ - Scott Branden <sbranden@...adcom.com>
+
+allOf:
+ - $ref: thermal-sensor.yaml#
+
+properties:
+ compatible:
+ const: brcm,sr-thermal
+
+ reg:
+ maxItems: 1
+
+ brcm,tmon-mask:
+ description:
+ A one-cell bit mask of valid TMON sources. Each bit represents a single
+ TMON source.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ '#thermal-sensor-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - brcm,tmon-mask
+
+additionalProperties: false
+
+examples:
+ - |
+ tmon: thermal-sensor@0 {
+ compatible = "brcm,sr-thermal";
+ reg = <0x0 0x40>;
+ brcm,tmon-mask = <0x3f>;
+ #thermal-sensor-cells = <1>;
+ };
+
+ thermal-zones {
+ ihost0_thermal: ihost0-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <1000>;
+ thermal-sensors = <&tmon 0>;
+ trips {
+ cpu-crit {
+ temperature = <105000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+ ihost1_thermal: ihost1-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <1000>;
+ thermal-sensors = <&tmon 1>;
+ trips {
+ cpu-crit {
+ temperature = <105000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+ ihost2_thermal: ihost2-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <1000>;
+ thermal-sensors = <&tmon 2>;
+ trips {
+ cpu-crit {
+ temperature = <105000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+ ihost3_thermal: ihost3-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <1000>;
+ thermal-sensors = <&tmon 3>;
+ trips {
+ cpu-crit {
+ temperature = <105000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+ crmu_thermal: crmu-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <1000>;
+ thermal-sensors = <&tmon 4>;
+ trips {
+ cpu-crit {
+ temperature = <105000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+ nitro_thermal: nitro-thermal {
+ polling-delay-passive = <0>;
+ polling-delay = <1000>;
+ thermal-sensors = <&tmon 5>;
+ trips {
+ cpu-crit {
+ temperature = <105000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+ };
--
2.51.0
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