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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-67ef0dfd34fsm584028a12.14.2026.05.08.05.10.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 08 May 2026 05:10:36 -0700 (PDT) Message-ID: Date: Fri, 8 May 2026 14:10:33 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/2] thermal: qcom: tsens: widen temperature limits to match hardware range To: Priyansh Jain , Amit Kucheria , Thara Gopinath , "Rafael J . Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba Cc: linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, manaf.pallikunhi@oss.qualcomm.com References: <20260508100700.772985-1-priyansh.jain@oss.qualcomm.com> <20260508100700.772985-3-priyansh.jain@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260508100700.772985-3-priyansh.jain@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA4MDEyNyBTYWx0ZWRfX9GWD/T0RXxx1 od6wmv9j1dL2dEOu3mP5n8sj2VGiHUa7lBDVdyGl0wI6/WIMw2eYPFV5r4ttxBjw9kND5FnInjQ blsYboSCUv10Cxh9bxXj8Gc76xDnj9/3Eh5I94aDBP9t+/yTBLlMdZtcN9qJl3XR41U1AQTA73k GF7ophUlUq+pbTz9+BQ35DxS7WL6z0XCZJV3biRka4UyccC5FuETt0gk97SSpAQ5P4kCqMrMz+X jOKnsqMYM+pyeiSXjhRn674O3cz7zZPrgQbNOS5GlvEfhJvHMwVaRR0lxbjQ98H3CEmhJ5lb5jd LuoZMvN1+LP0NZOal/9nIHCnLi0B2EXpB5GAN3HHCkLspXdgMGH1Uo6iFUuhRsFVbxZ6qakT4+a ECV2WWEgLenpadFosBXjBLkuQ1JXmnY74cQDUZcIz93avcFJ9gtTxJt9M7JPZVtZ4ShRRNV685X PLHU7IgIBh9XOwCgV5Q== X-Proofpoint-GUID: gh0RGkL9VLhPcgqCkJA0xJ7EG2xyjSf_ X-Proofpoint-ORIG-GUID: gh0RGkL9VLhPcgqCkJA0xJ7EG2xyjSf_ X-Authority-Analysis: v=2.4 cv=NKblPU6g c=1 sm=1 tr=0 ts=69fdd2bf cx=c_pps a=DUEm7b3gzWu7BqY5nP7+9g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=bZ6dXzqpLwj25owkuuQA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=-aSRE8QhW-JAV6biHavz:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-07_02,2026-05-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 spamscore=0 clxscore=1015 malwarescore=0 lowpriorityscore=0 phishscore=0 priorityscore=1501 suspectscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605080127 On 5/8/26 12:07 PM, Priyansh Jain wrote: > The TSENS v2 software driver currently clamps trip_min_temp and > trip_max_temp to -40°C and 120°C respectively. However, the > TSENS v2 hardware temperature threshold registers support a wider > programmable range from -204°C to +204°C. > > On newer chipsets using TSENS v2, devices may legitimately operate > beyond the existing software limits (for example, up to 130°C). When a > trip temperature is programmed outside the software clamped range, it is > constrained to 120°C on the upper end or -40°C on the lower end. > If the actual temperature continues to exceed this clamped limit, the > threshold is immediately violated again, which can result in a > continuous interrupt storm. > > Expand the TSENS v2 software trip temperature limits to match the full > hardware supported range (-204°C to +204°C). This avoids repeated > threshold reprogramming and ensures correct trip handling on TSENS v2 > based platforms. > > Signed-off-by: Priyansh Jain > --- Reviewed-by: Konrad Dybcio Konrad