From: David Lechner <dlechner@baylibre.com>
To: radu.sabau@analog.com, "Lars-Peter Clausen" <lars@metafoo.de>,
"Michael Hennerich" <Michael.Hennerich@analog.com>,
"Jonathan Cameron" <jic23@kernel.org>,
"Nuno Sá" <nuno.sa@analog.com>,
"Andy Shevchenko" <andy@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Uwe Kleine-König" <ukleinek@kernel.org>,
"Liam Girdwood" <lgirdwood@gmail.com>,
"Mark Brown" <broonie@kernel.org>,
"Linus Walleij" <linusw@kernel.org>,
"Bartosz Golaszewski" <brgl@kernel.org>,
"Philipp Zabel" <p.zabel@pengutronix.de>
Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-pwm@vger.kernel.org,
linux-gpio@vger.kernel.org
Subject: Re: [PATCH v4 1/4] dt-bindings: iio: adc: add AD4691 family
Date: Sat, 21 Mar 2026 11:11:16 -0500 [thread overview]
Message-ID: <486fe1c2-3734-43ea-b7cd-7bbba2eeb891@baylibre.com> (raw)
In-Reply-To: <20260320-ad4692-multichannel-sar-adc-driver-v4-1-052c1050507a@analog.com>
On 3/20/26 6:03 AM, Radu Sabau via B4 Relay wrote:
> From: Radu Sabau <radu.sabau@analog.com>
>
> Add DT bindings for the Analog Devices AD4691 family of multichannel
> SAR ADCs (AD4691, AD4692, AD4693, AD4694).
>
...
> +allOf:
> + # ref-supply and refin-supply are mutually exclusive, one is required
> + - oneOf:
> + - required:
> + - ref-supply
> + - required:
> + - refin-supply
> +
> + # CNV Burst Mode (pwms present) without SPI offload requires a DRDY interrupt.
> + # Offload configurations expose '#trigger-source-cells' instead.
This sounds like a current driver limitation, not a wiring limitation.
So doesn't belong in the devicetree.
A driver could use e.g. timer wait for the conversion instead of an interrupt.
> + - if:
> + required:
> + - pwms
> + not:
> + required:
> + - '#trigger-source-cells'
> + then:
> + required:
> + - interrupts
> +
next prev parent reply other threads:[~2026-03-21 16:11 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-20 11:03 [PATCH v4 0/4] iio: adc: ad4691: add driver for AD4691 multichannel SAR ADC family Radu Sabau via B4 Relay
2026-03-20 11:03 ` [PATCH v4 1/4] dt-bindings: iio: adc: add AD4691 family Radu Sabau via B4 Relay
2026-03-20 12:26 ` Rob Herring (Arm)
2026-03-21 14:35 ` Jonathan Cameron
2026-03-21 16:11 ` David Lechner [this message]
2026-03-20 11:03 ` [PATCH v4 2/4] iio: adc: ad4691: add initial driver for " Radu Sabau via B4 Relay
2026-03-20 15:16 ` Andy Shevchenko
2026-03-21 14:48 ` Jonathan Cameron
2026-03-23 11:44 ` Nuno Sá
2026-03-20 11:03 ` [PATCH v4 3/4] iio: adc: ad4691: add triggered buffer support Radu Sabau via B4 Relay
2026-03-20 16:14 ` Uwe Kleine-König
2026-03-21 15:16 ` Jonathan Cameron
2026-03-23 9:03 ` Sabau, Radu bogdan
2026-03-24 12:22 ` Nuno Sá
2026-03-25 12:47 ` Sabau, Radu bogdan
2026-03-25 13:12 ` Nuno Sá
2026-03-20 11:03 ` [PATCH v4 4/4] iio: adc: ad4691: add SPI offload support Radu Sabau via B4 Relay
2026-03-20 17:07 ` Andy Shevchenko
2026-03-21 15:28 ` Jonathan Cameron
2026-03-22 3:05 ` kernel test robot
2026-03-23 13:06 ` kernel test robot
2026-03-25 11:32 ` kernel test robot
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