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Mon, 22 Jun 2026 12:58:29 -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 14:58:27 -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: <42e544b8-f2da-450b-92bb-99c41f1c72fe@baylibre.com> 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, >>=20 >> 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. >>=20 >> 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: >>=20 >> - Configurable reference selection >> - Burn-out Current Sources (BOCS) for diagnostic purpuses >> - Excitation current sources (usually called IDACs TI) for sensor >> current biasing >>=20 >> 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]. >>=20 >> 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 are >> 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). Sure, that's fine by me. I'll add a dependency to your series with b4. Want me to send one more version addressing your comments before you take it in? --=20 Thanks, ~ Kurt