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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-arm-msm@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: AW1haW4tMjYwNTA4MDEyNyBTYWx0ZWRfXx9lKrhVM2PGG YH1rC1EMvN/t178KzOkzDsFMtksCQT0jzzWtt1DPTbXTuABRAbOzgT6a3sa5gVFQorMDohOhcDA hWJLTeEp4xtif6jmQArYkR3xG1je/KV7IBKRe00yvSQWg8zloJ/AorRaVrIvxJSWLDQ3KvPZTxM DosSsnaogt1xi2+lLAtSuY3c7TFP9ckVnDO5UIzX8On35MZZCsmFOzl1QazBsMvtgc/xchAF3cN P/dR2wb4CnOLpvYNbFjaAJZdWIMmrB76himbcb34nNXaXyJOMLJsOgYSjV3b5uVgFqfL1qqRj1b h9HAjpVaXbhYQ2To8gVBXyw88BtRK0Q7CC3c30HFc5/pGJfMmyk73hQLnhC0OE95f9XYTilcVVi 7YE912+t8Ts9w2cz/tDBsFZXvBeUnGLrk/s1DnYo5Nf9t0lFCwiLbvhhjP6Z0MCCgFqvLAdaQeJ Z2vI4NFlwPDzkuq7naA== X-Proofpoint-ORIG-GUID: T422zp5HQK1FhXcXPoC86wlXjNoUdrox X-Authority-Analysis: v=2.4 cv=Wu4b99fv c=1 sm=1 tr=0 ts=69fdd2bf cx=c_pps a=N1BjEkVkxJi3uNfLdpvX3g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=EUspDBNiAAAA:8 a=bZ6dXzqpLwj25owkuuQA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=crWF4MFLhNY0qMRaF8an:22 X-Proofpoint-GUID: T422zp5HQK1FhXcXPoC86wlXjNoUdrox 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 clxscore=1015 malwarescore=0 priorityscore=1501 suspectscore=0 lowpriorityscore=0 bulkscore=0 spamscore=0 impostorscore=0 phishscore=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