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([2a05:6e02:1041:c10:7d20:e20f:a77f:4ef7]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a1bdbace19sm49809535e9.14.2026.10.15.00.10.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 15 Oct 2026 00:10:50 -0700 (PDT) Message-ID: <0ca8681e-8402-4540-8635-9a98140b8243@oss.qualcomm.com> Date: Thu, 15 Oct 2026 09:10:49 +0200 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: [RFC PATCH] platform/arm64: lenovo-thinkpad-t14s: Adjust thermal trip with platform profile To: Kurt Borja , =?UTF-8?Q?Ilpo_J=C3=A4rvinen?= , Hans de Goede , "Rafael J. Wysocki" , Mario Limonciello Cc: sre@kernel.org, bryan.odonoghue@linaro.org, platform-driver-x86@vger.kernel.org, LKML , stephan.gerhold@linaro.org References: <20261001181917.9367-1-daniel.lezcano@oss.qualcomm.com> <1eb6d74f-28c7-8f0a-4001-dfe717196836@linux.intel.com> <36418d4e-ba34-4c31-b676-1e636cfb8a7a@oss.qualcomm.com> Content-Language: en-US From: Daniel Lezcano In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: YxltvLSJPQV_UzuBqMhxCIcHpiojBUK_ X-Proofpoint-Spam-Info: AW1haW4tMjYxMDE1MDAyOCBTYWx0ZWRfX+Do4JmFVAM5h MWmYvumtqo+9IqGpil2ctJ4cDwhXUGCl4fc8phuVL4mr3M/+653mAmZTLiSk/hAEUFdceja1Lcy qQz4Z0UJ2DQD61+963hTmt6kDNUEz/o= X-Proofpoint-GUID: YxltvLSJPQV_UzuBqMhxCIcHpiojBUK_ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDE1MDAyOCBTYWx0ZWRfX7PE/RrJ+5CWv vxbrILEUyrnWIFoz9jpVibJ98cwt38w5cmCnBxvbHdVKP0q2zDS+jlXOaz43pXEq1myLGedx8C1 0Qc6pjcv/ebuh49TdLlMd6Xon0kmGJ38jXqsBDuAURuGhW4lZ6JyawpmcnXPV6sdHrq6M6NfM/e Wf4+N8QlM8EJ91DnZTtnm+sy3V8GgluRTWmgY6PUieDhkUJT15+Hnygi+akQ0mqOgVxkSjNQuh6 5dNO/dmO+ghMEv98eejd8p3BTHbHmIpCFI+2zG6pjcGMbqUfKYGEDpFMRixjoZmBZDHH0xj/I2e ROh4B/GRdZ33YsUBScrkGVo+VhoBtQip+MYFdhhCSz7GF/nz27dKdJVqfgs7AlQ0CKX4nDKmPz1 El5hbpzDYGspdP3MrtkEKva1wTHnOJA7PQJ1y59aWGrUPzTbylFaNJMjNQqmVpYRYrGeNHOYesI 6Y/V7W/R1nxSjILIVvg== X-Authority-Analysis: v=2.4 cv=SYZi5fRu c=1 sm=1 tr=0 ts=6ad07c7f cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=5Kx5z0Epgnzjo5jacSQA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 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=2026-10-13_01,2026-10-14_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 phishscore=0 suspectscore=0 clxscore=1015 spamscore=0 lowpriorityscore=0 impostorscore=0 adultscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610150028 On 10/15/26 07:08, Kurt Borja wrote: > On Wed Oct 14, 2026 at 10:03 AM -03, Daniel Lezcano wrote: [ ... ] >> Yes but I have a series I'm about to send decoupling the >> platform_profile from ACPI > > The platform-profile already has a platform agnostic interface at > /sys/class/platform-profile-N. Unless I'm missing something, I believe > that interface should already cover your use case and its also the > recommended way to expose interfaces to user-space. > > I was not around here when this functionality was exposed to > /sys/firmware/acpi so I don't really know the context, but I personally > don't see a reason to duplicate this at /sys/firmware/devicetree or > something like that. Yes, I agree, thanks for pointing this out. The platform_profile is however tied with ACPI because if acpi_disabled is set then platform profile is not usable. It uses also a acpi_kobj. The aforementioned series [1] decouples both so it can be used on any platform. [1] https://lore.kernel.org/all/20261014132500.3817549-1-daniel.lezcano@oss.qualcomm.com/