From d82d57767c85984132cde4efaf89ad6db290cda3 Mon Sep 17 00:00:00 2001 From: Kamil Debski Date: Wed, 16 Jul 2014 17:46:42 +0200 Subject: hwmon: Add pwm-fan driver The pwm-fan driver enables control of fans connected to PWM lines. This driver uses the PWM framework, so it is compatible with all PWM devices that provide drivers through the PWM framework. Signed-off-by: Kamil Debski Reviewed-by: Varka Bhadram Reviewed-by: Tobias Klauser [Guenter Roeck: Last argument to devm_of_pwm_get is pointer, use NULL] Signed-off-by: Guenter Roeck --- Documentation/hwmon/pwm-fan | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 Documentation/hwmon/pwm-fan (limited to 'Documentation/hwmon') diff --git a/Documentation/hwmon/pwm-fan b/Documentation/hwmon/pwm-fan new file mode 100644 index 00000000000..18529d2e3bc --- /dev/null +++ b/Documentation/hwmon/pwm-fan @@ -0,0 +1,17 @@ +Kernel driver pwm-fan +===================== + +This driver enables the use of a PWM module to drive a fan. It uses the +generic PWM interface thus it is hardware independent. It can be used on +many SoCs, as long as the SoC supplies a PWM line driver that exposes +the generic PWM API. + +Author: Kamil Debski + +Description +----------- + +The driver implements a simple interface for driving a fan connected to +a PWM output. It uses the generic PWM interface, thus it can be used with +a range of SoCs. The driver exposes the fan to the user space through +the hwmon's sysfs interface. -- cgit v1.2.3-70-g09d2