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Clark" , Armin Wolf , Hans de Goede , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Cc: Rong Zhang , Guenter Roeck , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org Subject: [PATCH 0/6] platform/x86: lenovo-wmi-{capdata,other}: Add HWMON for fan speed Date: Mon, 20 Oct 2025 05:04:43 +0800 Message-ID: <20251019210450.88830-1-i@rong.moe> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-ZohoMailClient: External Lenovo WMI Other Mode interface also supports querying or setting fan speed RPM. This capability is decribed by LENOVO_CAPABILITY_DATA_00. Besides, LENOVO_FAN_TEST_DATA provides reference data for self-test of cooling fans, including minimum and maximum fan speed RPM. This patchset turns lenovo-wmi-capdata01 into a unified driver (now named lenovo-wmi-capdata) for LENOVO_CAPABILITY_DATA_{00,01} and LENOVO_FAN_TEST_DATA; then adds HWMON support for lenovo-wmi-other: - fanX_enable: enable/disable the fan (tunable) - fanX_input: current RPM - fanX_max: maximum RPM - fanX_min: minimum RPM - fanX_target: target RPM (tunable) This implementation doesn't require all capability data to be available, and is capable to expose interfaces accordingly: - Having LENOVO_CAPABILITY_DATA_00: exposes fanX_{enable,input,target} - Having LENOVO_CAPABILITY_DATA_01: exposes firmware_attributes - Having LENOVO_FAN_TEST_DATA: exposes fanX_{max,min} Rong Zhang (6): platform/x86: Rename lenovo-wmi-capdata01 to lenovo-wmi-capdata platform/x86: lenovo-wmi-{capdata,other}: Support multiple Capability Data platform/x86: lenovo-wmi-capdata: Add support for Capability Data 00 platform/x86: lenovo-wmi-other: Add HWMON for fan speed RPM platform/x86: lenovo-wmi-capdata: Add support for Fan Test Data platform/x86: lenovo-wmi-other: Report min/max RPM and hide dummy fans .../wmi/devices/lenovo-wmi-other.rst | 32 + drivers/platform/x86/lenovo/Kconfig | 5 +- drivers/platform/x86/lenovo/Makefile | 2 +- drivers/platform/x86/lenovo/wmi-capdata.c | 545 ++++++++++++++++++ drivers/platform/x86/lenovo/wmi-capdata.h | 46 ++ drivers/platform/x86/lenovo/wmi-capdata01.c | 302 ---------- drivers/platform/x86/lenovo/wmi-capdata01.h | 25 - drivers/platform/x86/lenovo/wmi-other.c | 422 +++++++++++++- 8 files changed, 1028 insertions(+), 351 deletions(-) create mode 100644 drivers/platform/x86/lenovo/wmi-capdata.c create mode 100644 drivers/platform/x86/lenovo/wmi-capdata.h delete mode 100644 drivers/platform/x86/lenovo/wmi-capdata01.c delete mode 100644 drivers/platform/x86/lenovo/wmi-capdata01.h base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787 -- 2.51.0