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([5.2.194.157]) by smtp.gmail.com with ESMTPSA id w9-20020a05600c474900b004101f27737asm2238214wmo.29.2024.02.08.09.25.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Feb 2024 09:25:39 -0800 (PST) From: Alisa-Dariana Roman X-Google-Original-From: Alisa-Dariana Roman To: Cc: alexandru.tachici@analog.com, alisa.roman@analog.com, alisadariana@gmail.com, conor+dt@kernel.org, devicetree@vger.kernel.org, dlechner@baylibre.com, jic23@kernel.org, krzysztof.kozlowski+dt@linaro.org, krzysztof.kozlowski@linaro.org, lars@metafoo.de, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, michael.hennerich@analog.com, robh+dt@kernel.org Subject: [PATCH v3 4/5] dt-bindings: iio: adc: ad7192: Add AD7194 support Date: Thu, 8 Feb 2024 19:24:58 +0200 Message-Id: <20240208172459.280189-5-alisa.roman@analog.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240208172459.280189-1-alisa.roman@analog.com> References: <20240208172459.280189-1-alisa.roman@analog.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Unlike the other AD719Xs, AD7194 has configurable differential channels. The default configuration for these channels can be changed from the devicetree. Also add an example for AD7194 devicetree. Signed-off-by: Alisa-Dariana Roman --- .../bindings/iio/adc/adi,ad7192.yaml | 75 +++++++++++++++++++ 1 file changed, 75 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml index 16def2985ab4..169bdd1dd0e1 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml @@ -21,8 +21,15 @@ properties: - adi,ad7190 - adi,ad7192 - adi,ad7193 + - adi,ad7194 - adi,ad7195 + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + reg: maxItems: 1 @@ -96,8 +103,44 @@ required: - spi-cpol - spi-cpha +patternProperties: + "^channel@([0-7a-f])$": + type: object + $ref: adc.yaml + unevaluatedProperties: false + + properties: + reg: + description: The channel index. + minimum: 0 + maximum: 7 + + diff-channels: + description: | + The differential channel pair for Ad7194 configurable channels. The + first channel is the positive input, the second channel is the + negative input. + items: + minimum: 1 + maximum: 16 + + required: + - reg + - diff-channels + allOf: - $ref: /schemas/spi/spi-peripheral-props.yaml# + - if: + properties: + compatible: + enum: + - adi,ad7190 + - adi,ad7192 + - adi,ad7193 + - adi,ad7195 + then: + patternProperties: + "^channel@([0-7a-f])$": false unevaluatedProperties: false @@ -127,3 +170,35 @@ examples: adi,burnout-currents-enable; }; }; + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + adc@0 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "adi,ad7194"; + reg = <0>; + spi-max-frequency = <1000000>; + spi-cpol; + spi-cpha; + clocks = <&ad7192_mclk>; + clock-names = "mclk"; + interrupts = <25 0x2>; + interrupt-parent = <&gpio>; + dvdd-supply = <&dvdd>; + avdd-supply = <&avdd>; + vref-supply = <&vref>; + + channel@0 { + reg = <0>; + diff-channels = <1 6>; + }; + + channel@1 { + reg = <1>; + diff-channels = <2 5>; + }; + }; + };