From aa18cc911ae2f172429d59169e95726b8e63525c Mon Sep 17 00:00:00 2001 From: Joshua Scott Date: Mon, 8 Aug 2016 13:35:45 +1200 Subject: hwmon: (adt7470) Expose PWM frequency to sysfs The ADT7470 supports a variety of PWM frequencies. This patch allows the frequency to be configured and viewed through the sysfs entry pwm1_freq. Signed-off-by: Joshua Scott Signed-off-by: Guenter Roeck --- Documentation/hwmon/adt7470 | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'Documentation/hwmon') diff --git a/Documentation/hwmon/adt7470 b/Documentation/hwmon/adt7470 index 8ce4aa0a0f55..fe68e18a0c8d 100644 --- a/Documentation/hwmon/adt7470 +++ b/Documentation/hwmon/adt7470 @@ -65,6 +65,23 @@ from 0 (off) to 255 (full speed). Fan speed will be set to maximum when the temperature sensor associated with the PWM control exceeds pwm#_auto_point2_temp. +The driver also allows control of the PWM frequency: + +* pwm1_freq + +The PWM frequency is rounded to the nearest one of: + +* 11.0 Hz +* 14.7 Hz +* 22.1 Hz +* 29.4 Hz +* 35.3 Hz +* 44.1 Hz +* 58.8 Hz +* 88.2 Hz +* 1.4 kHz +* 22.5 kHz + Notes ----- -- cgit v1.2.3