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Fri, 31 Jul 2026 20:13:23 -0700 (PDT) Message-ID: <4ac9ffe4-0f14-45d7-9a62-7a5fe7c40bf3@gmail.com> Date: Sat, 1 Aug 2026 11:13:14 +0800 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH v8] platform/x86: panasonic-laptop: add fan speed mode for newer models To: platform-driver-x86@vger.kernel.org Cc: Kenneth Chan , Hans de Goede , =?UTF-8?Q?Ilpo_J=C3=A4rvinen?= , Guenter Roeck , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, llvm@lists.linux.dev References: <20260729044332.382862-1-alexyeo362@gmail.com> Content-Language: en-US From: Alex Yeo In-Reply-To: <20260729044332.382862-1-alexyeo362@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hello everyone, Please disregard this patch. What I have found is not just a fan control method, but a set of methods to control active and passive cooling policies for the cooling device + a way to cap processor power and unlock it. The reverse engineering notes are still relevant, but I had clearly missed the part where the fan code is in proximity to the code that toggles the power limit. Given this, I no longer think this belongs in thermal or hwmon. platform_profile appears to be the appropriate fit, although I will continue investigating. Apologies for the confusion. I will redo the patch with further testing and data. If I do move forward with this approach, I plan to submit this as a completely new patch instead since the current subject "add fan speed mode for newer models" no longer applies. Thank you, Alex