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([2a05:6e02:1041:c10:82ae:cd75:d970:e66f]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49fc58a1176sm31018885e9.2.2026.09.18.02.12.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 18 Sep 2026 02:12:31 -0700 (PDT) Message-ID: <45768828-d0a7-40c1-8eec-3a1fb2d66a71@oss.qualcomm.com> Date: Fri, 18 Sep 2026 11:12:29 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v12 4/6] thermal: khadas-mcu-fan: Add fan config from platform data Add regulator support To: linux-kernel-dev@aliel.fr, Neil Armstrong , Lee Jones , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andi Shyti , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Beniamino Galvani , "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Liam Girdwood , Mark Brown Cc: linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org, mfd@lists.linux.dev References: <20260917-add-mcu-fan-khadas-vim4-v12-0-497cd543a148@aliel.fr> <20260917-add-mcu-fan-khadas-vim4-v12-4-497cd543a148@aliel.fr> Content-Language: en-US From: Daniel Lezcano In-Reply-To: <20260917-add-mcu-fan-khadas-vim4-v12-4-497cd543a148@aliel.fr> X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTE4MDEyNiBTYWx0ZWRfX76UMWqky/n5h 1kzsvJS5EkfUBW0DvPOvxH/I0N6einSb02OU3v1zWBNC1WW7f3+1jJS+mIbd5W5bzi26ZVti966 uhY66nv+JT6V0Bq2/eJYOYyo9bhL0lA/sNCbzWcLr2egWS5RDzGcHTZj22ITDyYeDodndSNu7Qe Ct3EL6w96L7RlyH3y6sxFAU79H+97OPA/7TFjb5XuJSnGPyDnlyQjRr72viB09+OIx+WfHBQxM8 GZMOsBwC9nvm65rMeS1XwGaZCs6Ls35O+qWLbh+Qcvqj1rtwLrp6FeV3DO1mGjKNQRlA2hNLtUZ U9rbHh07ctjwrk2GhV50jvKyJXpaSoCTAyBmplg8D7sU88teII7zX4FF543Sywx/nCjacPIM2GC fcAhSx8AFG1VPwzJlnUjNqRVjujbv1hnGo+Q6lL5tekMfxHvoXE8hKVzWSd9PvACuPMYf5HVPi+ tejkKoVG5a+WnuY5epw== X-Authority-Analysis: v=2.4 cv=N+e8hG9B c=1 sm=1 tr=0 ts=6aad0081 cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=YaFGZCiNkOP6CsGDcAoA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTE4MDEyNiBTYWx0ZWRfX7UJ+GBCeYKmX fNIap1kej5CoFrecTijuaNgbUwN4NlfG3pFD86oNHhgEbD3Kde2Go4DL7Ju2EDW5qkqlc4ihbJZ kTz3H3h8BPod/jK+odboUcsBvP6qHJI= X-Proofpoint-ORIG-GUID: HkyxCLBcdNqUSMzNajPy9b5pMUupWMXs X-Proofpoint-GUID: HkyxCLBcdNqUSMzNajPy9b5pMUupWMXs X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-18_02,2026-09-16_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 suspectscore=0 lowpriorityscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 spamscore=0 adultscore=0 impostorscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609180126 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260918_021234_711437_4161616B X-CRM114-Status: GOOD ( 13.08 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On 9/17/26 09:59, Ronald Claveau via B4 Relay wrote: > From: Ronald Claveau > > Introduce platform name, control register and duty-cycle > levels per variant. > VIM4 uses a different register and level set (0-100) > declared as a list (0, 30, 40, 55, 75, 100) compared > to previous boards (0-3). > > MAX_LEVEL is kept and bumped from 3 to 5 to make > the speed change more gradual with the newer MCUs. > > The cooling device's state is stored as an index into levels[], > and khadas_mcu_fan_set_level() writes levels[state] to fan_reg, > rather than writing the raw state value as before. > > Optionally acquire and enable a "fan" regulator supply > at probe time and on resume, > so boards that gate fan power through a regulator are handled. > The regulator is released via a devm_add_action_or_reset() > callback. > > Reviewed-by: Neil Armstrong > Signed-off-by: Ronald Claveau > --- Acked-by: Daniel Lezcano _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic