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| author | Justin Ledford <justinledford@google.com> | 2022-08-29 19:59:30 +0000 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2022-09-19 06:17:05 -0700 |
| commit | 5b38279e1a3f10c8046761b9732dccbfed78d614 (patch) | |
| tree | 3587679f263230dad0b6f3a2bd6fd0bceb93add6 /Documentation/hwmon | |
| parent | b5ae0ad56455dfb277b165b9270382f0e1c1d943 (diff) | |
| download | linux-5b38279e1a3f10c8046761b9732dccbfed78d614.tar.bz2 | |
hwmon: (max31790) add fanN_enable
The MAX31790 has a tach input enable bit in each fan's configuration
register. This is only enabled by the driver if RPM mode is selected,
but the driver doesn't provide a way to independently enable tachometer
input regardless of the regulator mode.
By adding the fanN_enable sysfs files, we can decouple the tach input
from the regulator mode. Also update the documentation.
Signed-off-by: Justin Ledford <justinledford@google.com>
Link: https://lore.kernel.org/r/20220829195930.2521755-1-justinledford@google.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/max31790.rst | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/hwmon/max31790.rst b/Documentation/hwmon/max31790.rst index 7b097c3b9b90..33c5c7330efc 100644 --- a/Documentation/hwmon/max31790.rst +++ b/Documentation/hwmon/max31790.rst @@ -38,6 +38,7 @@ Sysfs entries fan[1-12]_input RO fan tachometer speed in RPM fan[1-12]_fault RO fan experienced fault fan[1-6]_target RW desired fan speed in RPM +fan[1-6]_enable RW enable or disable the tachometer input pwm[1-6]_enable RW regulator mode, 0=disabled (duty cycle=0%), 1=manual mode, 2=rpm mode pwm[1-6] RW read: current pwm duty cycle, write: target pwm duty cycle (0-255) |