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Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Conor Dooley , linux-pm@vger.kernel.org (open list:THERMAL), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH] dt-bindings: thermal: Drop thermal zone node name length limit Date: Mon, 26 Oct 2026 10:49:56 +0100 Message-ID: <20261026094956.2323036-1-daniel.lezcano@oss.qualcomm.com> X-Mailer: git-send-email 2.43.0 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: nfG8houwRHproSR11ns0ImIrV5NDxWEK X-Proofpoint-Spam-Info: AW1haW4tMjYxMDI2MDAzOSBTYWx0ZWRfXxvn+9XEZXkd4 Sm/9J4gPfSJr9ONNYNC282pA8a7VRfoTn//0SDCb9+ccCMhSN/bqv9DLZOJvX8toQCQvQUfZdeS qp4EcH/BGmR2SOWIpFoQXh41/Z72w0s= X-Proofpoint-GUID: nfG8houwRHproSR11ns0ImIrV5NDxWEK X-Authority-Analysis: v=2.4 cv=bq/Zl0ai c=1 sm=1 tr=0 ts=6adf225c cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=xqWC_Br6kY4A:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=F35qRUJZQmyXIphswqcA:9 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDI2MDAzOSBTYWx0ZWRfX1U2wc+7BwI80 KMaJpg/9H3zcAKG2BhrZVaYoudr7D/RwALPyi+hJ6uJF/0xoKRVKwk6ZfdKdfeF2Zg6GRjd+2dB IP3jEFf+DuIqb1PaB+ZTj1cypaWqfZgNVENGSdPYImsKRhrpRYfoTeDvpXbCQ9bjEs2uIFjoUJS m9UEweTi1A1w4an8cGc2GRGZewCTLQUfOhLkQ083FPSPudvXZJy03l5aVYCrwBs0LFlS7661GLA 8EXqchVwdAEJcffViRTScIi23GwdgknjSJfb6JaJbsjZNNgu1tN4r4Alh+btnifZLP2yqt8h0tc q/UrCBCSkmTRhzGREZTIQEbrminweRpte/U3nu9P90ShJ3Ak2nMy5oJcACeMzK9zl57DLyoCRd7 AWQvAA1wkLJNUypRuegWrWyOmVjfU4QqQvZcilgiBaNC3lb7cjCofBstQ68JBbjsUjo6CsoZmpC 88Tyl9pmoVBd55j5eDg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-10-26_01,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 malwarescore=0 bulkscore=0 impostorscore=0 spamscore=0 suspectscore=0 clxscore=1015 lowpriorityscore=0 priorityscore=1501 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610260039 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 Cc: Manaf Meethalavalappu Pallikunhi --- 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