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Fri, 07 Nov 2025 12:53:48 -0800 (PST) From: David Lechner Date: Fri, 07 Nov 2025 14:52:51 -0600 Subject: [PATCH v2 5/6] dt-bindings: iio: adc: adi,ad7380: add spi-buses property Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251107-spi-add-multi-bus-support-v2-5-8a92693314d9@baylibre.com> References: <20251107-spi-add-multi-bus-support-v2-0-8a92693314d9@baylibre.com> In-Reply-To: <20251107-spi-add-multi-bus-support-v2-0-8a92693314d9@baylibre.com> To: Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Marcelo Schmitt , Michael Hennerich , =?utf-8?q?Nuno_S=C3=A1?= , Jonathan Cameron , Andy Shevchenko Cc: Sean Anderson , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, David Lechner X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; 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These chips are simultaneous sampling ADCs and have one SDO line per channel, either 2 or 4 total depending on the part number. Signed-off-by: David Lechner --- .../devicetree/bindings/iio/adc/adi,ad7380.yaml | 22 ++++++++++++++++++= ++++ 1 file changed, 22 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml b/Do= cumentation/devicetree/bindings/iio/adc/adi,ad7380.yaml index b91bfb16ed6bc6c605880f81050250d1ed9c307a..9ef46cdb047d45d088e0fbc345f= 58c5b09083385 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml @@ -62,6 +62,10 @@ properties: spi-cpol: true spi-cpha: true =20 + spi-data-buses: + minItems: 1 + maxItems: 4 + vcc-supply: description: A 3V to 3.6V supply that powers the chip. =20 @@ -245,6 +249,22 @@ allOf: patternProperties: "^channel@[0-3]$": false =20 + # 2-channel chip can only have up to 2 buses + - if: + properties: + compatible: + enum: + - adi,ad7380 + - adi,ad7381 + - adi,ad7386 + - adi,ad7387 + - adi,ad7388 + - adi,ad7389 + then: + properties: + spi-data-buses: + maxItems: 2 + examples: - | #include @@ -260,6 +280,7 @@ examples: spi-cpol; spi-cpha; spi-max-frequency =3D <80000000>; + spi-data-buses =3D <0>, <1>; =20 interrupts =3D <27 IRQ_TYPE_EDGE_FALLING>; interrupt-parent =3D <&gpio0>; @@ -284,6 +305,7 @@ examples: spi-cpol; spi-cpha; spi-max-frequency =3D <80000000>; + spi-data-buses =3D <0>, <1>, <2>, <3>; =20 interrupts =3D <27 IRQ_TYPE_EDGE_FALLING>; interrupt-parent =3D <&gpio0>; --=20 2.43.0