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Tue, 14 Oct 2025 15:03:09 -0700 (PDT) From: David Lechner Date: Tue, 14 Oct 2025 17:02:15 -0500 Subject: [PATCH 5/6] dt-bindings: iio: adc: adi,ad7380: add spi-buses property Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20251014-spi-add-multi-bus-support-v1-5-2098c12d6f5f@baylibre.com> References: <20251014-spi-add-multi-bus-support-v1-0-2098c12d6f5f@baylibre.com> In-Reply-To: <20251014-spi-add-multi-bus-support-v1-0-2098c12d6f5f@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; l=2035; i=dlechner@baylibre.com; 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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/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml index 8dae89ecb64d723dcf2b4af1e0505fc5db49595b..78002bdaa795800a3927570d639e7f8eda9206c2 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7380.yaml @@ -63,6 +63,10 @@ properties: spi-cpol: true spi-cpha: true + spi-buses: + minItems: 1 + maxItems: 4 + vcc-supply: description: A 3V to 3.6V supply that powers the chip. @@ -246,6 +250,22 @@ allOf: patternProperties: "^channel@[0-3]$": false + # 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-buses: + maxItems: 2 + examples: - | #include @@ -261,6 +281,7 @@ examples: spi-cpol; spi-cpha; spi-max-frequency = <80000000>; + spi-buses = <0>, <1>; interrupts = <27 IRQ_TYPE_EDGE_FALLING>; interrupt-parent = <&gpio0>; @@ -285,6 +306,7 @@ examples: spi-cpol; spi-cpha; spi-max-frequency = <80000000>; + spi-buses = <0>, <1>, <2>, <3>; interrupts = <27 IRQ_TYPE_EDGE_FALLING>; interrupt-parent = <&gpio0>; -- 2.43.0