On Mon, 20 Jun 2022 14:00:43 +0800 ChiaEn Wu <peterwu.pub@xxxxxxxxx> wrote: > Hi Jonathan, > > Thanks for your helpful comments, and I have some questions want to > ask you below. > > Jonathan Cameron <jic23@xxxxxxxxxx> 於 2022年6月18日 週六 晚上11:39寫道： > > > > 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. > > > > I want to confirm with you again, > because my ABI file duplicates with standard sysfs-bus-iio (voltage, > current, and temperature channels), > Should I just remove this ABI file and modify the code of mt6370-adc > to meet your expectations?? yes. > > > > > > +KernelVersion: 5.18 > > > +Contact: chiaen_wu@xxxxxxxxxxx > > > +Description: > > > + Indicated MT6370 VBUS ADC with lower accuracy(+-75mA) > > Curious though, voltage with a mA accuracy range? > > Yes, this description is based on the data sheet. Weird :) > > > 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. > > Ok, I got it! > > > > > > + > > > +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 > > Shall I modify the scale of temperature to milli degrees in > mt6370-adc.c and remove this item?? yes. Thanks, Jonathan > > > > > Best regards, > ChiaEn Wu
