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thermal: exynos: Document number of supported trip-points

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Document the number of configurable temperature thresholds (for
trip-points in interrupt-driven mode).

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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Krzysztof Kozlowski 2016-02-18 14:14:19 +09:00 committed by Eduardo Valentin
parent a41e939b27
commit fa7b29e8bf
1 changed files with 8 additions and 0 deletions
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Documentation/devicetree/bindings/thermal/exynos-thermal.txt
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@ -44,6 +44,14 @@
- vtmu-supply: This entry is optional and provides the regulator node supplying
voltage to TMU. If needed this entry can be placed inside
board/platform specific dts file.
The Exynos TMU supports generating interrupts when reaching given
temperature thresholds. Number of supported thermal trip points depends
on the SoC (only first trip points defined in DT will be configured):
- most of SoC: 4
- samsung,exynos5433-tmu: 8
- samsung,exynos7-tmu: 8
Following properties are mandatory (depending on SoC):
- samsung,tmu_gain: Gain value for internal TMU operation.
- samsung,tmu_reference_voltage: Value of TMU IP block's reference voltage