1 files changed, 10 insertions, 5 deletions

diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index efef3b962cd3..d73d2e8c7534 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -166,16 +166,21 @@ pwm[1-*]	Pulse width modulation fan control.
 
 pwm[1-*]_enable
                 Switch PWM on and off.
-                Not always present even if fan*_pwm is.
+                Not always present even if pwmN is.
                 0: turn off
                 1: turn on in manual mode
                 2+: turn on in automatic mode
-                Check individual chip documentation files for automatic mode details.
+                Check individual chip documentation files for automatic mode
+                details.
                 RW
 
-pwm[1-*]_mode
-                0: DC mode
-                1: PWM mode
+pwm[1-*]_mode   0: DC mode (direct current)
+                1: PWM mode (pulse-width modulation)
+                RW
+
+pwm[1-*]_freq   Base PWM frequency in Hz.
+                Only possibly available when pwmN_mode is PWM, but not always
+                present even then.
                 RW
 
 pwm[1-*]_auto_channels_temp