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1.. SPDX-License-Identifier: GPL-2.02 3Kernel driver lan966x-hwmon4===========================5 6Supported chips:7 8 * Microchip LAN9668 (sensor in SoC)9 10 Prefix: 'lan9668-hwmon'11 12 Datasheet: https://microchip-ung.github.io/lan9668_reginfo13 14Authors:15 16 Michael Walle <michael@walle.cc>17 18Description19-----------20 21This driver implements support for the Microchip LAN9668 on-chip22temperature sensor as well as its fan controller. It provides one23temperature sensor and one fan controller. The temperature range24of the sensor is specified from -40 to +125 degrees Celsius and25its accuracy is +/- 5 degrees Celsius. The fan controller has a26tacho input and a PWM output with a customizable PWM output27frequency ranging from ~20Hz to ~650kHz.28 29No alarms are supported by the SoC.30 31The driver exports temperature values, fan tacho input and PWM32settings via the following sysfs files:33 34**temp1_input**35 36**fan1_input**37 38**pwm1**39 40**pwm1_freq**41