The exynosautov920 TMU requires per-sensor interrupt enablement
for its critical trip points.
Add two new DT properties to the Samsung thermal bindings
to support this requirement:
- **tmu-name**: an explicit identifier for each TMU,
used to skip specific sensors
(e.g., sensor 5 is temporarily disabled on the TMU_SUB1 block).
- **sensor-index-ranges**: defines valid sensor index ranges
for the driver’s bitmap in private data,
enabling per-sensor interrupt setup and data access.
Signed-off-by: Shin Son <shin.son@xxxxxxxxxxx>
---
.../thermal/samsung,exynos-thermal.yaml | 23 ++++++++++++++++++-
1 file changed, 22 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..420fb7a944e3 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@xxxxxxxxxx>
+ - Shin Son <shin.son@xxxxxxxxxxx>
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 +64,29 @@ properties:
minItems: 1
'#thermal-sensor-cells':
- const: 0
+ enum:
+ - 0
+ - 1
vtmu-supply:
description: The regulator node supplying voltage to TMU.
+ tmu-name:
+ description: The TMU hardware name.
+ $ref: /schemas/types.yaml#/definitions/string-array
+ minItems: 1
+ maxItems: 1
+
+ sensor-index-ranges:
+ description: |
+ Valid Sensor index ranges for the TMU hardware.
+
+ Note:: On the ExynosautoV920 variant, the fifth sensor in the TMU SUB1 is disabled,
+ so the driver skips it when matching by tmu-name.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 2
+ maxItems: 2
+
required:
- compatible
- clocks
@@ -131,6 +151,7 @@ allOf:
- samsung,exynos5250-tmu
- samsung,exynos5260-tmu
- samsung,exynos5420-tmu
+ - samsung,exynosautov920-tmu
then:
properties:
clocks:
--
2.50.1
