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([2a02:2f08:a105:8300:da4d:6b2c:f166:22e6]) by smtp.gmail.com with ESMTPSA id h15-20020a05600c350f00b00418d68df226sm46505396wmq.0.2024.04.30.09.30.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Apr 2024 09:30:04 -0700 (PDT) From: Alisa-Dariana Roman X-Google-Original-From: Alisa-Dariana Roman To: michael.hennerich@analog.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: alexandru.tachici@analog.com, lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org, robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, lgirdwood@gmail.com, broonie@kernel.org, andy@kernel.org, nuno.sa@analog.com, marcelo.schmitt@analog.com, bigunclemax@gmail.com, dlechner@baylibre.com, okan.sahin@analog.com, fr0st61te@gmail.com, alisa.roman@analog.com, marcus.folkesson@gmail.com, schnelle@linux.ibm.com, liambeguin@gmail.com Subject: [PATCH v7 2/6] dt-bindings: iio: adc: ad7192: Add aincom supply Date: Tue, 30 Apr 2024 19:29:42 +0300 Message-Id: <20240430162946.589423-3-alisa.roman@analog.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240430162946.589423-1-alisa.roman@analog.com> References: <20240430162946.589423-1-alisa.roman@analog.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 AINCOM should actually be a supply. AINx inputs are referenced to AINCOM in pseudo-differential operation mode. AINCOM voltage represents the offset of corresponding channels. Reviewed-by: Rob Herring (Arm) Signed-off-by: Alisa-Dariana Roman --- Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml index 16def2985ab4..cf5c568f140a 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml @@ -41,6 +41,11 @@ properties: interrupts: maxItems: 1 + aincom-supply: + description: | + AINCOM voltage supply. Analog inputs AINx are referenced to this input + when configured for pseudo-differential operation. + dvdd-supply: description: DVdd voltage supply @@ -117,6 +122,7 @@ examples: clock-names = "mclk"; interrupts = <25 0x2>; interrupt-parent = <&gpio>; + aincom-supply = <&aincom>; dvdd-supply = <&dvdd>; avdd-supply = <&avdd>; vref-supply = <&vref>; From patchwork Tue Apr 30 16:29:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alisa-Dariana Roman X-Patchwork-Id: 1929709 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20230601 header.b=mcZkkDzt; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2604:1380:45e3:2400::1; 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([2a02:2f08:a105:8300:da4d:6b2c:f166:22e6]) by smtp.gmail.com with ESMTPSA id h15-20020a05600c350f00b00418d68df226sm46505396wmq.0.2024.04.30.09.30.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Apr 2024 09:30:11 -0700 (PDT) From: Alisa-Dariana Roman X-Google-Original-From: Alisa-Dariana Roman To: michael.hennerich@analog.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: alexandru.tachici@analog.com, lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org, robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, lgirdwood@gmail.com, broonie@kernel.org, andy@kernel.org, nuno.sa@analog.com, marcelo.schmitt@analog.com, bigunclemax@gmail.com, dlechner@baylibre.com, okan.sahin@analog.com, fr0st61te@gmail.com, alisa.roman@analog.com, marcus.folkesson@gmail.com, schnelle@linux.ibm.com, liambeguin@gmail.com Subject: [PATCH v7 4/6] dt-bindings: iio: adc: Add single-channel property Date: Tue, 30 Apr 2024 19:29:44 +0300 Message-Id: <20240430162946.589423-5-alisa.roman@analog.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240430162946.589423-1-alisa.roman@analog.com> References: <20240430162946.589423-1-alisa.roman@analog.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Devices that have both single-ended channels and differential channels cause a bit of confusion when the channels are configured in the devicetree. Clarify difference between these two types of channels for such devices by adding single-channel property alongside diff-channels. They should be mutually exclusive. Devices that have only single-ended channels can still use reg property to reference a channel like before. Suggested-by: Jonathan Cameron Signed-off-by: Alisa-Dariana Roman --- Documentation/devicetree/bindings/iio/adc/adc.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/adc.yaml b/Documentation/devicetree/bindings/iio/adc/adc.yaml index 36775f8f71df..0c3eae580732 100644 --- a/Documentation/devicetree/bindings/iio/adc/adc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adc.yaml @@ -38,6 +38,14 @@ properties: The first value specifies the positive input pin, the second specifies the negative input pin. + single-channel: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + When devices combine single and differential channels, allow the channel + for a single element to be specified, independent of reg (as for + differential channels). If this and diff-channels are not present reg + shall be used instead. + settling-time-us: description: Time between enabling the channel and first stable readings. 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([2a02:2f08:a105:8300:da4d:6b2c:f166:22e6]) by smtp.gmail.com with ESMTPSA id h15-20020a05600c350f00b00418d68df226sm46505396wmq.0.2024.04.30.09.30.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Apr 2024 09:30:14 -0700 (PDT) From: Alisa-Dariana Roman X-Google-Original-From: Alisa-Dariana Roman To: michael.hennerich@analog.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: alexandru.tachici@analog.com, lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org, robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, lgirdwood@gmail.com, broonie@kernel.org, andy@kernel.org, nuno.sa@analog.com, marcelo.schmitt@analog.com, bigunclemax@gmail.com, dlechner@baylibre.com, okan.sahin@analog.com, fr0st61te@gmail.com, alisa.roman@analog.com, marcus.folkesson@gmail.com, schnelle@linux.ibm.com, liambeguin@gmail.com Subject: [PATCH v7 5/6] dt-bindings: iio: adc: ad7192: Add AD7194 support Date: Tue, 30 Apr 2024 19:29:45 +0300 Message-Id: <20240430162946.589423-6-alisa.roman@analog.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240430162946.589423-1-alisa.roman@analog.com> References: <20240430162946.589423-1-alisa.roman@analog.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Unlike the other AD719Xs, AD7194 has configurable channels. The user can dynamically configure them in the devicetree. Also add an example for AD7194 devicetree. Signed-off-by: Alisa-Dariana Roman --- .../bindings/iio/adc/adi,ad7192.yaml | 89 +++++++++++++++++++ 1 file changed, 89 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml index cf5c568f140a..a03da9489ed9 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 @@ -89,6 +96,42 @@ properties: description: see Documentation/devicetree/bindings/iio/adc/adc.yaml type: boolean +patternProperties: + "^channel@[0-9a-f]+$": + type: object + $ref: adc.yaml + unevaluatedProperties: false + + properties: + reg: + description: The channel index. + minimum: 0 + maximum: 271 + + diff-channels: + description: + Both inputs can be connected to pins AIN1 to AIN16 by choosing the + appropriate value from 1 to 16. + items: + minimum: 1 + maximum: 16 + + single-channel: + description: + Positive input can be connected to pins AIN1 to AIN16 by choosing the + appropriate value from 1 to 16. Negative input is connected to AINCOM. + items: + minimum: 1 + maximum: 16 + + oneOf: + - required: + - reg + - diff-channels + - required: + - reg + - single-channel + required: - compatible - reg @@ -103,6 +146,17 @@ required: allOf: - $ref: /schemas/spi/spi-peripheral-props.yaml# + - if: + properties: + compatible: + enum: + - adi,ad7190 + - adi,ad7192 + - adi,ad7193 + - adi,ad7195 + then: + patternProperties: + "^channel@[0-9a-f]+$": false unevaluatedProperties: false @@ -133,3 +187,38 @@ examples: adi,burnout-currents-enable; }; }; + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + adc@0 { + compatible = "adi,ad7194"; + reg = <0>; + + #address-cells = <1>; + #size-cells = <0>; + + spi-max-frequency = <1000000>; + spi-cpol; + spi-cpha; + clocks = <&ad7192_mclk>; + clock-names = "mclk"; + interrupts = <25 0x2>; + interrupt-parent = <&gpio>; + aincom-supply = <&aincom>; + dvdd-supply = <&dvdd>; + avdd-supply = <&avdd>; + vref-supply = <&vref>; + + channel@0 { + reg = <0>; + diff-channels = <1 6>; + }; + + channel@1 { + reg = <1>; + single-channel = <1>; + }; + }; + };