[PATCH] dt-bindings: thermal: Drop thermal zone node name length limit

From: Daniel Lezcano

Date: Mon Oct 26 2026 - 05:59:22 EST


Device Tree bindings describe hardware and must remain OS-agnostic.
The thermal zone node name length limit is derived from Linux's
THERMAL_NAME_LENGTH macro, which is an implementation detail rather
than a hardware requirement.

Remove the length restriction and its accompanying comment while
preserving the thermal zone naming convention. Any OS-specific limits
should be handled by the implementation rather than encoded in the
Device Tree ABI.

Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxxxxxxxx>
Cc: Manaf Meethalavalappu Pallikunhi <manaf.pallikunhi@xxxxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/thermal/thermal-zones.yaml | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
index 999ad40a20d5..6091e886829d 100644
--- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
+++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
@@ -49,10 +49,7 @@ properties:
to take when the temperature crosses those thresholds.

patternProperties:
- # 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$":
+ "^[a-zA-Z][a-zA-Z0-9\\-]*-thermal$":
type: object
description:
Each thermal zone node contains information about how frequently it
--
2.43.0