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Tue, 09 Jun 2026 06:31:07 -0700 (PDT) X-Received: by 2002:a4a:db85:0:b0:69d:513e:1a69 with SMTP id 006d021491bc7-69e68bce04bmr4357168eaf.2.1781011866448; Tue, 09 Jun 2026 06:31:06 -0700 (PDT) Received: from [192.168.120.170] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-bf055500875sm1029528666b.53.2026.06.09.06.31.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 09 Jun 2026 06:31:05 -0700 (PDT) Message-ID: Date: Tue, 9 Jun 2026 15:31:03 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/3] powercap: qcom: Add SPEL powercap driver To: Manaf Meethalavalappu Pallikunhi , Rob Herring , Krzysztof Kozlowski , Conor Dooley , "Rafael J. Wysocki" , Bjorn Andersson , Konrad Dybcio , Daniel Lezcano Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Gaurav Kohli References: <20260519-qcom_spel_driver_upstream-v1-0-75356d1b7f94@oss.qualcomm.com> <20260519-qcom_spel_driver_upstream-v1-2-75356d1b7f94@oss.qualcomm.com> <7ea2f2cc-ef11-4727-810c-e32e815bd973@oss.qualcomm.com> <8f045340-a6c8-41c7-b1c7-6d9b87b05d90@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <8f045340-a6c8-41c7-b1c7-6d9b87b05d90@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: MheBO_HohZcNXTfKo8gyJvdaHAuR_rFj X-Authority-Analysis: v=2.4 cv=EI42FVZC c=1 sm=1 tr=0 ts=6a28159c cx=c_pps a=Z3eh007fzM5o9awBa1HkYQ==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=EUspDBNiAAAA:8 a=VKwP4syk8cgDA61-jkoA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=eBU8X_Hb5SQ8N-bgNfv4:22 X-Proofpoint-GUID: MheBO_HohZcNXTfKo8gyJvdaHAuR_rFj X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjA5MDEyOCBTYWx0ZWRfXzzt44PTsSVIX W06Y10FJnifXPMh7gLvt16sMs2kkjtcXpAA85BVQoC0sqhfNBOJAe8bgy3CBqTKlTrbXnZlaEYp 5s/W5sG26yFSMEFin6jMGT1t94U/ruGvR+38qInk170yXbeAwel7olZSGiCv14aFQbtCeWdJyd6 lfhhZKuomwcRJ5VInq+vafpGGMWvIFEZkbA3DJ38kiCzjTvgpaIRdIPRjfhkE6lYNUzd/+jut0D tKITz1i/1K1zulurk0FSHBcBsQuAM84/JIlMEPX9RD11B9c0fle1HX5oKa3j5GqfS2TFulNlIAw x5USwZZhS7wN/ykrUaPZe1Tm0md19m8VM2kcGiA+eGIo0C1BZPPv31Z1ylAgWC8ugikoc+8Mm1O gdUgHLwGRSyaU6ObOL8feTRKraGOx+Ip5mCAm7CrTbcMcA30Y8aTMIJ6W/HBLlxIaLrJM8SGS7J coXkPbDLUAviPd8FeBA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-09_03,2026-06-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 adultscore=0 bulkscore=0 phishscore=0 suspectscore=0 malwarescore=0 priorityscore=1501 clxscore=1015 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606090128 On 6/9/26 3:23 PM, Manaf Meethalavalappu Pallikunhi wrote: > Hi Konrad, > > > On 5/21/2026 4:46 PM, Konrad Dybcio wrote: >> On 5/19/26 12:49 PM, Manaf Meethalavalappu Pallikunhi wrote: >>> The Qualcomm SoC Power and Electrical Limits (SPEL) provides hardware >>> based power monitoring and limiting capabilities for various power >>> domains including System, SoC, CPU clusters, GPU, and various other >>> subsystems. >>> >>> The driver integrates with the Linux powercap framework, exposing SPEL >>> capabilities through powercap sysfs interfaces. >>> >>> Signed-off-by: Manaf Meethalavalappu Pallikunhi >>> --- [...] >>> +static void spel_remove(struct platform_device *pdev) >>> +{ >>> +    struct spel_system *sp = platform_get_drvdata(pdev); >>> +    int i; >>> + >>> +    if (!sp) >>> +        return; >>> + >>> +    /* Unregister in reverse order: children first, then SOC, then SYS */ >>> +    for (i = SPEL_DOMAIN_MAX - 1; i >= 0; i--) >>> +        powercap_unregister_zone(sp->control_type, &sp->domains[i].power_zone); >> >> Could you try adding a devm_ variant of these register functions? > > Powercap framework doesn't support any devm_* API, you meant add this support in framework in this series ? Yes, this should be fairly trivial - look at e.g. drivers/regulator/devres.c : devm_of_regulator_get Konrad