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Mon, 13 Jul 2026 09:56:32 -0700 (PDT) X-Received: by 2002:a17:90a:d403:b0:384:8a11:33eb with SMTP id 98e67ed59e1d1-38dc777b95emr10042704a91.24.1783961792124; Mon, 13 Jul 2026 09:56:32 -0700 (PDT) Received: from [192.168.1.100] ([157.48.180.168]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-31174ac14f2sm76694721eec.27.2026.07.13.09.56.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 13 Jul 2026 09:56:31 -0700 (PDT) Message-ID: Date: Mon, 13 Jul 2026 22:26:21 +0530 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 v3 3/3] thermal: qcom: add support for PMIC5 Gen3 ADC thermal monitoring To: Andy Shevchenko Cc: Jonathan Cameron , David Lechner , =?UTF-8?Q?Nuno_S=C3=A1?= , Andy Shevchenko , Amit Kucheria , Thara Gopinath , "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , linux-arm-msm@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Kamal Wadhwa , David Collins , Anjelique Melendez , Neil Armstrong , Stephan Gerhold References: <20260705-gen3_adc_tm-v3-0-ac62f387dbce@oss.qualcomm.com> <20260705-gen3_adc_tm-v3-3-ac62f387dbce@oss.qualcomm.com> Content-Language: en-US From: Jishnu Prakash In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwNzEzMDE3NSBTYWx0ZWRfX09UgO3VsWOWW QaCf71DclUOgfQixMFgikIcRVJrPIrgbeCwQWydkp/PhnngvRCtyC9DH/9vez14bNmHalWwGjoW NFHNq/6h2Eh++BOCXUdJRXVQyM1+iUY= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzEzMDE3NSBTYWx0ZWRfX0ofpiaYfotvU 8CuqtZopZNn5wfA8vsZEaRNVFBrkdBGmNzte4sPBYjdIFCmxMhMZMfp7XBilxAplTT/OHKVMos9 moyQ3vRZ7SLc4Avfxf17ahv7/n/6oXrmlchFKFtHl3/T6LeKNM67nM9R2po1bvUvrQUcdM+gcEe Km2/9KMTYH3PoaaePQrJ3zRpGcNqvBf+7DzJWj2yp8PZ78uI75hIAQZFzxk3L7SIXNeGEgnJixg DJfs/m1y717kjlOMRKanB2uAADMIeeTf6UoMGb/H47vTuPr4iCeWjBsheOlwqogjV9xGJtDqf3y SKb8YBzdcEdwb4P+SgGarNN+UaxF5D1S23L6hohPJyGjGIuHFxWYN/LM+ScjsQZ2lagpvsb76mO m3LbZ4yQFkjuyN5SepgTzzYCew11/cawfFcmrzNWz7R+bnRekSYwRGSz8MH5FyrvdVeA049N10y eYihZRh+6LSbYD+joXw== X-Proofpoint-ORIG-GUID: hTsEju22dbKwYZL8XnElWCw_kkyPeXmD X-Authority-Analysis: v=2.4 cv=DbcnbPtW c=1 sm=1 tr=0 ts=6a5518c1 cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=62VzjLAzdHZQ3L95IMgkXw==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=QSFfxCxHlpgOv1NLln8A:9 a=QEXdDO2ut3YA:10 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-GUID: hTsEju22dbKwYZL8XnElWCw_kkyPeXmD X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-13_04,2026-07-10_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 impostorscore=0 malwarescore=0 priorityscore=1501 phishscore=0 suspectscore=0 bulkscore=0 adultscore=0 spamscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607130175 Hi Andy, On 7/6/2026 11:29 AM, Andy Shevchenko wrote: > On Sun, Jul 05, 2026 at 10:23:35PM +0530, Jishnu Prakash wrote: >> Add support for ADC_TM part of PMIC5 Gen3. >> >> This is an auxiliary driver under the Gen3 ADC driver, which implements the >> threshold setting and interrupt generating functionalities of QCOM ADC_TM >> drivers, used to support thermal trip points. > > ... > >> +DEFINE_GUARD(adc5_gen3, struct adc_tm5_gen3_chip *, adc5_gen3_mutex_lock(_T->dev), >> + adc5_gen3_mutex_unlock(_T->dev)) > > Logical split is slightly better. > > DEFINE_GUARD(adc5_gen3, struct adc_tm5_gen3_chip *, > adc5_gen3_mutex_lock(_T->dev), adc5_gen3_mutex_unlock(_T->dev)) > > > ... > >> +static int adc5_gen3_tm_status_check(struct adc_tm5_gen3_chip *adc_tm5, >> + int sdam_index, u8 tm_status[at_least 2]) > > This function uses exact size of the submitted tm_status. Instead of creating a > complications to the compiler with all these new fancy attributes, just pass the > sizeof in an additional argument. > >> +{ >> + int ret; >> + >> + ret = adc5_gen3_read(adc_tm5->dev_data, sdam_index, ADC5_GEN3_TM_HIGH_STS, >> + tm_status, 2); >> + if (ret) >> + return ret; >> + >> + return adc5_gen3_status_clear(adc_tm5->dev_data, sdam_index, ADC5_GEN3_TM_HIGH_STS_CLR, >> + tm_status, 2); >> +} >> + >> +static irqreturn_t adctm5_gen3_isr_thread(int irq, void *dev_id) >> +{ >> + struct adc_tm5_gen3_chip *adc_tm5 = dev_id; >> + u8 tm_status[2] = { }; > > ^^^^ The only case for the above function. Yes, it might be better to call adc5_gen3_read() and adc5_gen3_status_clear() directly now than keep them in a separate function. I'll update it this way. > > Also why do you need to nullify it? If it's an error condition, the compiler > should be clever enough to see this. It's not that complicated code. > I think the null initialization is not needed, I'll remove it. I'll also address all your other comments in the next patch series. Thanks, Jishnu >> + int sdam_index; >> + >> + sdam_index = get_sdam_from_irq(adc_tm5, irq); >> + if (sdam_index < 0) >> + return IRQ_NONE; >> + >> + scoped_guard(adc5_gen3, adc_tm5) { > >> + int ret = adc5_gen3_tm_status_check(adc_tm5, sdam_index, >> + tm_status); >> + if (ret) >> + return IRQ_NONE;