On Fri, Mar 3, 2017 at 10:14 AM, Carlo Caione <carlo@xxxxxxxxxx> wrote: > From: Carlo Caione <carlo@xxxxxxxxxxxx> > > The implementation details for SCPI seems to suggest that the sensor > readings must be reported by SCP using a well defined scale > (millidegree Celsius for temperature, millivolts for voltage, > milliamperes for current, microwatts for power and microjoules for > energy). > > This is also important for the interaction with other subsystems: for > example both the thermal sub-system and the hwmon sysfs interface expect > the temperature expressed in millidegree Celsius. > > Unfortunately since this behaviour is dependent on the firmware > implementation there are cases where the sensor readings are reported > using a different scale. For example in the Amlogic SoCs the > temperature is reported in degree and not millidegree Celsius. > > In this patchset we introduce a new DT property `scpi,sensors-scale` that is > used by the scpi-hwmon driver to convert the sensor readings to the expected > scale. > > v2: > - Added data validation (scale != 0) > - s/unsigned int/u32/ for the array > - Switched to array initialiser notation > - Introduced scpi_scale_reading() gentle ping -- Carlo Caione -- To unsubscribe from this list: send the line "unsubscribe linux-hwmon" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
