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Fri, 19 Jun 2026 06:17:01 -0700 (PDT) Date: Fri, 19 Jun 2026 10:17:40 -0300 From: Marcelo Schmitt To: David Lechner Cc: Marcelo Schmitt , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, jic23@kernel.org, nuno.sa@analog.com, Michael.Hennerich@analog.com, andy@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, pop.ioan-daniel@analog.com Subject: Re: [PATCH v3 1/5] dt-bindings: iio: adc: Add ltc2378 Message-ID: References: <76d39d2a-051d-4706-8433-3d3eb97e7f2a@baylibre.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <76d39d2a-051d-4706-8433-3d3eb97e7f2a@baylibre.com> On 06/17, David Lechner wrote: > 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. Ah, thanks for pointing that out. Will add that in v4. > > > + > > + 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. > Hmm, I think that's the only device that has it differently. Will add allOf/if properties to differentiate these. Thanks, Marcelo