Re: [PATCH v3 1/5] dt-bindings: iio: adc: Add ltc2378

[David Lechner]

On 6/16/26 9:03 PM, Marcelo Schmitt wrote:
> Document how to describe LTC2378-20 and similar ADCs in device tree.
> 

...

> +  vdd-supply:
> +    description: A 2.5V supply that powers the chip (VDD).
> +
> +  ovdd-supply:
> +    description:
> +      A 1.71V to 5.25V supply that sets the logic level for digital interface.
> +
> +  ref-supply:
> +    description:
> +      A 2.5V to 5.1V supply for the reference input (REF).
> +
> +  cnv-gpios:
> +    description:
> +      When provided, this property indicates the GPIO that is connected to the
> +      CNV pin.
> +    maxItems: 1

Missing pwms property for when CNV pin is connected to PWM.

> +
> +  interrupts:
> +    description:
> +      Interrupt for signaling the completion of conversion results. The active
> +      low signal provided on the BUSY pin asserts when ADC conversions finish.
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - vdd-supply
> +  - ovdd-supply
> +  - ref-supply

I only looked at LTC2338-18, but it has a REFIN, which is optional.
Nothing named REF that is required.