[PATCH v4 1/3] dt-bindings: thermal: samsung: Adjust '#thermal-sensor-cells' to 1

Shin Son
2025-09-22T04:19:22Z

The ExynosAuto v920 SoC includes multiple TMU instances; each instance
monitors a subset of the SoC's up to 16 hardware thermal sensors.

Additionally, add myself to the bindings' maintainers list, as I plan
to actively work on the exynosautov920 TMU support and handle further
updates in this area.

Signed-off-by: Shin Son <shin.son@samsung.com>
---
.../thermal/samsung,exynos-thermal.yaml | 32 ++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/thermal/samsung,exynos-thermal.yaml b/Documentation/devicetree/bindings/thermal/samsung,exynos-thermal.yaml
index 29a08b0729ee..f9b399a7b82f 100644
--- a/Documentation/devicetree/bindings/thermal/samsung,exynos-thermal.yaml
+++ b/Documentation/devicetree/bindings/thermal/samsung,exynos-thermal.yaml
@@ -8,6 +8,7 @@ title: Samsung Exynos SoC Thermal Management Unit (TMU)

maintainers:
- Krzysztof Kozlowski <krzk@kernel.org>
+ - Shin Son <shin.son@samsung.com>

description: |
For multi-instance tmu each instance should have an alias correctly numbered
@@ -27,6 +28,7 @@ properties:
- samsung,exynos5420-tmu-ext-triminfo
- samsung,exynos5433-tmu
- samsung,exynos7-tmu
+ - samsung,exynosautov920-tmu

clocks:
minItems: 1
@@ -62,11 +64,17 @@ properties:
minItems: 1

'#thermal-sensor-cells':
- const: 0
+ enum: [0, 1]

vtmu-supply:
description: The regulator node supplying voltage to TMU.

+ samsung,sensors:
+ description: Number of thermal sensors monitored by this TMU instance.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 15
+
required:
- compatible
- clocks
@@ -97,6 +105,8 @@ allOf:
reg:
minItems: 2
maxItems: 2
+ '#thermal-sensor-cells':
+ const: 0
- if:
properties:
compatible:
@@ -119,6 +129,8 @@ allOf:
reg:
minItems: 1
maxItems: 1
+ '#thermal-sensor-cells':
+ const: 0

- if:
properties:
@@ -139,6 +151,24 @@ allOf:
reg:
minItems: 1
maxItems: 1
+ '#thermal-sensor-cells':
+ const: 0
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynosautov920-tmu
+ then:
+ properties:
+ clocks:
+ minItems: 1
+ maxItems: 1
+ reg:
+ minItems: 1
+ maxItems: 1
+ '#thermal-sensor-cells':
+ const: 1

additionalProperties: false

--
2.50.1