RE: [PATCH 4/6] hwmon: (pmbus/max20830): add VOUT feedback resistor scaling support

[Torreno, Alexis Czezar]

> [External]
> 
> On 6/29/26 19:46, Alexis Czezar Torreno wrote:
> > Implement support for external voltage divider scaling using the
> > adi,vout-rfb1-ohms and adi,vout-rfb2-ohms device tree properties.
> >
> > When the desired output voltage exceeds VREF, a resistor divider
> > (RFB1 and RFB2) is used to scale down the feedback voltage. The driver
> > reads these resistor values from device tree and applies the scaling
> > formula: VOUT_actual = VOUT_measured × (1 + RFB1/RFB2)
> >
> > The properties are optional. If not specified, the driver assumes no
> > voltage divider is present and reports the raw VOUT reading.
> >
> 
> This will require a detailed explanation why only PMBUS_READ_VOUT would
> require scaling but not any of the other vout related commands.
> 
> Guenter

Will add it.
For reference, the device only has 3 vout related commands. The other 2
is referred to a feedback/reference voltage rather than a scaled output value.
Hence only read_vout has scaling.

Regards,
Alexis