On Mon, 13 Jun 2022 19:11:38 +0800 ChiaEn Wu <peterwu.pub@xxxxxxxxx> wrote: > From: ChiaEn Wu <chiaen_wu@xxxxxxxxxxx> > > Add ABI documentation for mt6370 non-standard ADC sysfs interfaces. > > Signed-off-by: ChiaEn Wu <chiaen_wu@xxxxxxxxxxx> > --- > .../ABI/testing/sysfs-bus-iio-adc-mt6370 | 36 +++++++++++++++++++ > 1 file changed, 36 insertions(+) > create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-adc-mt6370 > > diff --git a/Documentation/ABI/testing/sysfs-bus-iio-adc-mt6370 b/Documentation/ABI/testing/sysfs-bus-iio-adc-mt6370 > new file mode 100644 > index 000000000000..039b3381176a > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-bus-iio-adc-mt6370 > @@ -0,0 +1,36 @@ > +What: /sys/bus/iio/devices/iio:deviceX/in_voltage0_raw Unfortunately the kernel documentation build scripts do no support duplicating standard ABI for particular devices so as to provide more information. Hence you can't have anything in this file. > +KernelVersion: 5.18 > +Contact: chiaen_wu@xxxxxxxxxxx > +Description: > + Indicated MT6370 VBUS ADC with lower accuracy(+-75mA) Curious though, voltage with a mA accuracy range? This scale should be presented directly to userspace anyway so no need for this doc. > + higher measure range(1~22V) > + Calculating with scale returns voltage in uV No. All channels return in mV. That's the ABI requirement as in sysfs-bus-iio and we cannot vary if for particular drivers. If we did no generic tooling would work. > + > +What: /sys/bus/iio/devices/iio:deviceX/in_voltage1_raw > +KernelVersion: 5.18 > +Contact: chiaen_wu@xxxxxxxxxxx > +Description: > + Indicated MT6370 VBUS ADC with higher accuracy(+-30mA) > + lower measure range(1~9.76V) > + Calculating with scale offset returns voltage in uV > + > +What: /sys/bus/iio/devices/iio:deviceX/in_voltage4_raw > +KernelVersion: 5.18 > +Contact: chiaen_wu@xxxxxxxxxxx > +Description: > + Indicated MT6370 TS_BAT ADC > + Calculating with scale returns voltage in uV > + > +What: /sys/bus/iio/devices/iio:deviceX/in_voltage7_raw > +KernelVersion: 5.18 > +Contact: chiaen_wu@xxxxxxxxxxx > +Description: > + Indicated MT6370 CHG_VDDP ADC > + Calculating with scale returns voltage in mV > + > +What: /sys/bus/iio/devices/iio:deviceX/in_temp8_raw > +KernelVersion: 5.18 > +Contact: chiaen_wu@xxxxxxxxxxx > +Description: > + Indicated MT6370 IC junction temperature > + Calculating with scale and offset returns temperature in degree
