[PATCH v4 1/3] hwmon: (adt7475) fan stall prevention

By default adt7475 will stop the fans (pwm duty cycle 0%) when the temperature drops past Tmin - hysteresis. Some systems want to keep the fans moving even when the temperature drops so add new sysfs attributes that configure the enhanced acoustics min 1-3 which allows the fans to run at the

[PATCH v4 2/3] hwmon: (adt7475) temperature smoothing

When enabled temperature smoothing allows ramping the fan speed over a configurable period of time instead of jumping to the new speed instantaneously. Signed-off-by: Chris Packham --- Changes in v2: - use a single tempN_smoothing attribute Changes in v3: -

[PATCH v4 0/3] (adt7475) small enhancements

This is a series of small enhancements to the adt7475 driver. We're using an adt7476 chip in several network switches and generally speaking the requirement for this type of equipment is to keep the fan moving so that we know it is working when we need it. Chris Packham (3): hwmon: (adt7475)

Re: [PATCH v3 3/4] hwmon: (adt7475) temperature smoothing

On 05/14/2017 02:23 PM, Chris Packham wrote: On 15/05/17 03:40, Guenter Roeck wrote: On 05/10/2017 08:45 PM, Chris Packham wrote: When enabled temperature smoothing allows ramping the fan speed over a configurable period of time instead of jumping to the new speed instantaneously.

Re: [PATCH v3 3/4] hwmon: (adt7475) temperature smoothing

On 15/05/17 03:40, Guenter Roeck wrote: > On 05/10/2017 08:45 PM, Chris Packham wrote: >> When enabled temperature smoothing allows ramping the fan speed over a >> configurable period of time instead of jumping to the new speed >> instantaneously. >> >> Signed-off-by: Chris Packham

Re: [PATCH v3 2/4] hwmon: (adt7475) fan stall prevention

On 15/05/17 02:54, Guenter Roeck wrote: > On 05/10/2017 08:45 PM, Chris Packham wrote: >> By default adt7475 will stop the fans (pwm duty cycle 0%) when the >> temperature drops past Tmin - hysteresis. Some systems want to keep the >> fans moving even when the temperature drops so add new sysfs

Re: [PATCH V4] hwmon: (ibmpowernv) Add highest/lowest attributes to sensors

On 05/06/2017 08:27 AM, Shilpasri G Bhat wrote: OCC provides historical minimum and maximum value for the sensor readings. This patch exports them as highest and lowest attributes for the inband sensors copied by OCC to main memory. Signed-off-by: Shilpasri G Bhat

Re: [PATCH v3 4/4] hwmon: (adt7475) add high frequency support

On 05/11/2017 02:31 PM, Chris Packham wrote: On 11/05/17 15:45, Chris Packham wrote: Systems using 4-wire fans usually require high frequency (22.5kHz) output on the pwm. Add 22500 as a valid option in the pwmfreq_table. In high frequency mode the low-order bit are ignored so they can safely be

Re: [PATCH v3 3/4] hwmon: (adt7475) temperature smoothing

On 05/10/2017 08:45 PM, Chris Packham wrote: When enabled temperature smoothing allows ramping the fan speed over a configurable period of time instead of jumping to the new speed instantaneously. Signed-off-by: Chris Packham --- Changes in v2: - use a

Re: [PATCH v3 2/4] hwmon: (adt7475) fan stall prevention

On 05/10/2017 08:45 PM, Chris Packham wrote: By default adt7475 will stop the fans (pwm duty cycle 0%) when the temperature drops past Tmin - hysteresis. Some systems want to keep the fans moving even when the temperature drops so add new sysfs attributes that configure the enhanced acoustics

Re: [PATCH v3 1/4] hwmon: (adt7475) replace find_nearest() with find_closest()

On 05/10/2017 08:45 PM, Chris Packham wrote: The adt7475 has had find_nearest() since it's creation in 2009. Since then find_closest() has been introduced and several drivers have been updated to use it. Update the adt7475 to use find_closest() and remove the now unused find_nearest().