[PATCH 2/8] dt-bindings: firmware: google,gs101-acpm-ipc: Add TMU child node
From: Tudor Ambarus <tudor.ambarus@linaro.org>
Date: 2026-01-14 14:17:10
Also in:
linux-arm-kernel, linux-hardening, linux-pm, linux-samsung-soc, lkml
Subsystem:
open firmware and flattened device tree bindings, samsung exynos acpm mailbox protocol, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Tudor Ambarus, Linus Torvalds
The Google GS101 Thermal Management Unit (TMU) is a child device of the ACPM (Alive Clock and Power Manager) block, as it relies on the ACPM protocol for configuration and initialization. Update the ACPM binding to include the thermal-sensor child node. Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org> --- .../bindings/firmware/google,gs101-acpm-ipc.yaml | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml b/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml
index d3bca6088d128485618bb2b538ed8596b4ba14f0..4043a6453a9897b9e1d0e618489f79c19f32f247 100644
--- a/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml
+++ b/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml@@ -52,6 +52,15 @@ properties: are used for passing messages to/from the ACPM firmware. maxItems: 1 + thermal-sensor: + description: Child node describing a Thermal Management Unit instance. + type: object + additionalProperties: true + + properties: + compatible: + const: google,gs101-tmu-top + required: - compatible - "#clock-cells"
@@ -93,4 +102,12 @@ examples: }; }; }; + + thermal-sensor { + compatible = "google,gs101-tmu-top"; + clocks = <&cmu_misc 71>; + interrupts = <0 769 4 0>; + syscon = <&tmu_top_syscon>; + #thermal-sensor-cells = <1>; + }; };
--
2.52.0.457.g6b5491de43-goog