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([2600:8803:e7e4:1d00:ee1a:f057:94fa:9a73]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7439204e5easm1851721a34.38.2025.08.18.06.45.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 18 Aug 2025 06:45:32 -0700 (PDT) Message-ID: <6c323896-10b9-455a-ae8a-bbe1e2a80e5d@baylibre.com> Date: Mon, 18 Aug 2025 08:45:31 -0500 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 2/4] dt-bindings: iio: adc: add IIO backend support To: Ioana Risteiu , Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , =?UTF-8?Q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Ramona Nechita , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250818131253.8854-1-Ioana.Risteiu@analog.com> <20250818131253.8854-3-Ioana.Risteiu@analog.com> Content-Language: en-US From: David Lechner In-Reply-To: <20250818131253.8854-3-Ioana.Risteiu@analog.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 8/18/25 8:12 AM, Ioana Risteiu wrote: > Add the generic io-backends property to the AD7779 binding to enable > support for the IIO backend framework. > > Also add the adi,num-lanes property to set the number of lanes used by > AD7779. > > Signed-off-by: Ioana Risteiu > --- > .../bindings/iio/adc/adi,ad7779.yaml | 35 ++++++++++++++++++- > 1 file changed, 34 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml > index 044f92f39cfa..4a212c8bc9d3 100644 > --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml > +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml > @@ -80,11 +80,27 @@ properties: > reset-gpios: > maxItems: 1 > > + io-backends: > + maxItems: 1 > + > + adi,num-lanes: > + description: > + Number of lanes on which the data is sent on the output when the data > + output interface is used. > + $ref: /schemas/types.yaml#/definitions/uint32 > + enum: [1, 2, 4] > + default: 4 Isn't 0 lanes wired up an option? I.e. it is possible to use the chip in SPI-only mode. So it seems like 0 should be the default.