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dt-bindings: thermal: correct thermal zone node name limit

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Linux kernel uses thermal zone node name during registering thermal
zones and has a hard-coded limit of 20 characters, including terminating
NUL byte.  The bindings expect node names to finish with '-thermal'
which is eight bytes long, thus we have only 11 characters for the reset
of the node name (thus 10 for the pattern after leading fixed character).

Reported-by: Rob Herring <robh@kernel.org>
Closes: https://lore.kernel.org/all/CAL_JsqKogbT_4DPd1n94xqeHaU_J8ve5K09WOyVsRX3jxxUW3w@mail.gmail.com/
Fixes: 1202a442a3 ("dt-bindings: thermal: Add yaml bindings for thermal zones")
Cc: stable@vger.kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240702145248.47184-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Krzysztof Kozlowski 2024-07-02 16:52:48 +02:00 committed by Daniel Lezcano
parent b18ce693a2
commit 97e32381d0
1 changed files with 4 additions and 1 deletions
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5
Documentation/devicetree/bindings/thermal/thermal-zones.yaml
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@ -49,7 +49,10 @@ properties:
to take when the temperature crosses those thresholds.
patternProperties:
"^[a-zA-Z][a-zA-Z0-9\\-]{1,12}-thermal$":
# Node name is limited in size due to Linux kernel requirements - 19
# characters in total (see THERMAL_NAME_LENGTH, including terminating NUL
# byte):
"^[a-zA-Z][a-zA-Z0-9\\-]{1,10}-thermal$":
type: object
description:
Each thermal zone node contains information about how frequently it