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Wed, 29 Apr 2026 22:45:20 -0700 (PDT) Received: from hu-priyjain-hyd.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c7fd64f21cbsm3955231a12.19.2026.04.29.22.45.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Apr 2026 22:45:19 -0700 (PDT) From: Priyansh Jain To: 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, Priyansh Jain Subject: [PATCH 2/2] thermal: qcom: tsens: widen temperature limits to match hardware range Date: Thu, 30 Apr 2026 11:14:21 +0530 Message-ID: <20260430054422.2461150-3-priyansh.jain@oss.qualcomm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260430054422.2461150-1-priyansh.jain@oss.qualcomm.com> References: <20260430054422.2461150-1-priyansh.jain@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: _ha78T1XvXYXhh178op72MUUuJ1IW9X_ X-Proofpoint-GUID: _ha78T1XvXYXhh178op72MUUuJ1IW9X_ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDMwMDA1MyBTYWx0ZWRfX1Mv9dLCeEJ8Q BypLt+4/Rk4ta4tE/Px8pjGGeMjCh9WIRraIarU8GFD7N0H5Azc7+GmLseO7jK23RoW7YbBuKtX DXXuSp8e7+NSTluXLXlxWboAFhOEVCk9bJkcKG/f13R8d1gx+K0WKnnN1OiXkmTd5u9w0xWrxn1 cPUrECws9p7xds+HUfr6uV2XPj8zEdQKHfSooHu8h4Jafa6B3TLY4sXARuROJMw+mkwhHDnF9rc 1xcx9X/uEQ/LvhjCGNUdEZOYG+yhIvmPvJrbo6N0fPEG2Gdv4dLSyYnQlsp5+CNd7167l9P1prX yfd39xCFahZewe/k+DOFXXCtjIR633s2NUKwAs7L5P7WWFakcqEfgQ/UPJo4gcOXHIJW57AAJa3 NLtO5Swf6DOdT2N8pxBqc9SKoAq2YQ3sx/IyXAmbMYKeW3N4fK4scJsXykNo07kz1HIh9J7zN/+ n7+vkBpH+Gt6vJr8NTA== X-Authority-Analysis: v=2.4 cv=Fpo1OWrq c=1 sm=1 tr=0 ts=69f2ec71 cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=EUspDBNiAAAA:8 a=7FrdJh-Z1z6zKSyd9LYA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=_Vgx9l1VpLgwpw_dHYaR: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=2026-04-30_01,2026-04-28_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 suspectscore=0 malwarescore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 bulkscore=0 phishscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604300053 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 --- drivers/thermal/qcom/tsens-v2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/qcom/tsens-v2.c b/drivers/thermal/qcom/tsens-v2.c index 814147735ba5..3bd654c8dd6e 100644 --- a/drivers/thermal/qcom/tsens-v2.c +++ b/drivers/thermal/qcom/tsens-v2.c @@ -54,8 +54,8 @@ static struct tsens_features tsens_v2_feat = { .adc = 0, .srot_split = 1, .max_sensors = 16, - .trip_min_temp = -40000, - .trip_max_temp = 120000, + .trip_min_temp = -204000, + .trip_max_temp = 204000, .valid_bit = BIT(21), .last_temp_mask = 0xFFF, .last_temp_resolution = 11, -- 2.43.0