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Mon, 22 Jun 2026 13:05:12 -0700 (PDT) Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Mon, 22 Jun 2026 15:05:10 -0500 Message-Id: Cc: =?utf-8?q?Nuno_S=C3=A1?= , "Andy Shevchenko" , , , Subject: Re: [PATCH RFC v2 0/3] dt-bindings: iio: adc: Add reference, excitation and burn-out properties From: "Kurt Borja" To: "David Lechner" , "Kurt Borja" , "Jonathan Cameron" , "Rob Herring" , "Krzysztof Kozlowski" , "Conor Dooley" X-Mailer: aerc 0.21.0-0-g5549850facc2 References: <20260622-new-channel-props-v2-0-aafd5369f253@gmail.com> <42e544b8-f2da-450b-92bb-99c41f1c72fe@baylibre.com> In-Reply-To: On Mon Jun 22, 2026 at 3:01 PM -05, David Lechner wrote: > On 6/22/26 2:58 PM, Kurt Borja wrote: >> On Mon Jun 22, 2026 at 2:38 PM -05, David Lechner wrote: >>> On 6/22/26 2:30 PM, Kurt Borja wrote: >>>> Hi all, >>>> >>>> After submitting a patch series adding support for TI ADS126X ADCs [1]= , >>>> I was made aware by David [2] that at least two more chip families, >>>> ads1220 [3] and ads1x2c14, share very similar features (though these >>>> chips are not really compatible between them). After that, I found one >>>> more chip with the same features which is already upstream, the >>>> AD4170-4. >>>> >>>> As David explained in [2], these chips are intended to be used with >>>> RTDs, thermocouples or other resistive sensors so they share the >>>> following per-channel features: >>>> >>>> - Configurable reference selection >>>> - Burn-out Current Sources (BOCS) for diagnostic purpuses >>>> - Excitation current sources (usually called IDACs TI) for sensor >>>> current biasing >>>> >>>> Given that these three features are present in all four devices and >>>> three of these drivers are still under review, my proposal is to have >>>> these features be described in adc.yaml and have this series merged >>>> before the three others [1] [2] [3]. >>>> >>>> This series is sent as RFC because I still don't have much experience >>>> with dt-bindings and I don't know if this approach or the properties a= re >>>> general enough to be described like this. >>> >>> It will probably be easier if I just include these patches when I do >>> v2 of my series (if you don't mind me tweaking them a bit). >>=20 >> Sure, that's fine by me. I'll add a dependency to your series with b4. >>=20 >> Want me to send one more version addressing your comments before you >> take it in? >>=20 > > No need. I don't mind fixing it up. Thanks :) --=20 Thanks, ~ Kurt