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authorKrzysztof Kozlowski <[email protected]>2024-07-02 16:52:48 +0200
committerDaniel Lezcano <[email protected]>2024-07-15 13:31:39 +0200
commit97e32381d0fc6c2602a767b0c46e15eb2b75971d (patch)
tree267df7c341bd8c50f9148e589dd3006edf9d7f8e
parentb18ce693a26526603e104d95ce91040fd73e98a7 (diff)
dt-bindings: thermal: correct thermal zone node name limit
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 <[email protected]> Closes: https://lore.kernel.org/all/CAL_JsqKogbT_4DPd1n94xqeHaU_J8ve5K09WOyVsRX3jxxUW3w@mail.gmail.com/ Fixes: 1202a442a31f ("dt-bindings: thermal: Add yaml bindings for thermal zones") Cc: [email protected] Signed-off-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Daniel Lezcano <[email protected]>
-rw-r--r--Documentation/devicetree/bindings/thermal/thermal-zones.yaml5
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
index 68398e7e8655..606b80965a44 100644
--- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
+++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
@@ -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