From: Renato Lui Geh <renatogeh@gmail.com> To: lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org, knaack.h@gmx.de, pmeerw@pmeerw.net, gregkh@linuxfoundation.org, stefan.popa@analog.com, alexandru.Ardelean@analog.com, robh+dt@kernel.org, mark.rutland@arm.com Cc: linux-iio@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, kernel-usp@googlegroups.com, devicetree@vger.kernel.org Subject: [PATCH] dt-bindings: iio: adc: add adi,ad7780.yaml binding Date: Sat, 18 May 2019 19:41:12 -0300 [thread overview] Message-ID: <9992a318aec777b9b7788bb40d976aa89e5963fe.1558219042.git.renatogeh@gmail.com> (raw) This patch adds a YAML binding for the Analog Devices AD7780/1 and AD7170/1 analog-to-digital converters. Signed-off-by: Renato Lui Geh <renatogeh@gmail.com> --- .../bindings/iio/adc/adi,ad7780.txt | 48 ----------- .../bindings/iio/adc/adi,ad7780.yaml | 85 +++++++++++++++++++ 2 files changed, 85 insertions(+), 48 deletions(-) delete mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt deleted file mode 100644 index 440e52555349..000000000000 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt +++ /dev/null @@ -1,48 +0,0 @@ -* Analog Devices AD7170/AD7171/AD7780/AD7781 - -Data sheets: - -- AD7170: - * https://www.analog.com/media/en/technical-documentation/data-sheets/AD7170.pdf -- AD7171: - * https://www.analog.com/media/en/technical-documentation/data-sheets/AD7171.pdf -- AD7780: - * https://www.analog.com/media/en/technical-documentation/data-sheets/ad7780.pdf -- AD7781: - * https://www.analog.com/media/en/technical-documentation/data-sheets/AD7781.pdf - -Required properties: - -- compatible: should be one of - * "adi,ad7170" - * "adi,ad7171" - * "adi,ad7780" - * "adi,ad7781" -- reg: spi chip select number for the device -- vref-supply: the regulator supply for the ADC reference voltage - -Optional properties: - -- powerdown-gpios: must be the device tree identifier of the PDRST pin. If - specified, it will be asserted during driver probe. As the - line is active high, it should be marked GPIO_ACTIVE_HIGH. -- adi,gain-gpios: must be the device tree identifier of the GAIN pin. Only for - the ad778x chips. If specified, it will be asserted during - driver probe. As the line is active low, it should be marked - GPIO_ACTIVE_LOW. -- adi,filter-gpios: must be the device tree identifier of the FILTER pin. Only - for the ad778x chips. If specified, it will be asserted - during driver probe. As the line is active low, it should be - marked GPIO_ACTIVE_LOW. - -Example: - -adc@0 { - compatible = "adi,ad7780"; - reg = <0>; - vref-supply = <&vdd_supply> - - powerdown-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>; - adi,gain-gpios = <&gpio 5 GPIO_ACTIVE_LOW>; - adi,filter-gpios = <&gpio 15 GPIO_ACTIVE_LOW>; -}; diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml new file mode 100644 index 000000000000..931bc4f8ec04 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml @@ -0,0 +1,85 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/adi,ad7780.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD7170/AD7171/AD7780/AD7781 analog to digital converters + +maintainers: + - Michael Hennerich <michael.hennerich@analog.com> + +description: | + The ad7780 is a sigma-delta analog to digital converter. This driver provides + reading voltage values and status bits from both the ad778x and ad717x series. + Its interface also allows writing on the FILTER and GAIN GPIO pins on the + ad778x. + + Specifications on the converters can be found at: + AD7170: + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7170.pdf + AD7171: + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7171.pdf + AD7780: + https://www.analog.com/media/en/technical-documentation/data-sheets/ad7780.pdf + AD7781: + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7781.pdf + +properties: + compatible: + enum: + - adi,ad7170 + - adi,ad7171 + - adi,ad7780 + - adi,ad7781 + + reg: + description: + Chip select number for the device + maxItems: 1 + + vref-supply: + description: + The regulator supply for the ADC reference voltage + maxItems: 1 + + powerdown-gpios: + description: + Must be the device tree identifier of the PDRST pin. If + specified, it will be asserted during driver probe. As the + line is active high, it should be marked GPIO_ACTIVE_HIGH. + maxItems: 1 + + adi,gain-gpios: + description: + Must be the device tree identifier of the GAIN pin. Only for + the ad778x chips. If specified, it will be asserted during + driver probe. As the line is active low, it should be marked + GPIO_ACTIVE_LOW. + maxItems: 1 + + adi,filter-gpios: + description: + Must be the device tree identifier of the FILTER pin. Only + for the ad778x chips. If specified, it will be asserted + during driver probe. As the line is active low, it should be + marked GPIO_ACTIVE_LOW. + maxItems: 1 + +required: + - compatible + - reg + - vref-supply + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + adc@0 { + compatible = "adi,ad7780"; + reg = <0>; + vref-supply = <&vdd_supply>; + + powerdown-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>; + adi,gain-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>; + adi,filter-gpios = <&gpio2 15 GPIO_ACTIVE_LOW>; + }; -- 2.21.0
WARNING: multiple messages have this Message-ID (diff)
From: Renato Lui Geh <renatogeh@gmail.com> To: lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org, knaack.h@gmx.de, pmeerw@pmeerw.net, gregkh@linuxfoundation.org, stefan.popa@analog.com, alexandru.Ardelean@analog.com, robh+dt@kernel.org, mark.rutland@arm.com Cc: linux-iio@vger.kernel.org, devel@driverdev.osuosl.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-usp@googlegroups.com Subject: [PATCH] dt-bindings: iio: adc: add adi,ad7780.yaml binding Date: Sat, 18 May 2019 19:41:12 -0300 [thread overview] Message-ID: <9992a318aec777b9b7788bb40d976aa89e5963fe.1558219042.git.renatogeh@gmail.com> (raw) This patch adds a YAML binding for the Analog Devices AD7780/1 and AD7170/1 analog-to-digital converters. Signed-off-by: Renato Lui Geh <renatogeh@gmail.com> --- .../bindings/iio/adc/adi,ad7780.txt | 48 ----------- .../bindings/iio/adc/adi,ad7780.yaml | 85 +++++++++++++++++++ 2 files changed, 85 insertions(+), 48 deletions(-) delete mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt deleted file mode 100644 index 440e52555349..000000000000 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.txt +++ /dev/null @@ -1,48 +0,0 @@ -* Analog Devices AD7170/AD7171/AD7780/AD7781 - -Data sheets: - -- AD7170: - * https://www.analog.com/media/en/technical-documentation/data-sheets/AD7170.pdf -- AD7171: - * https://www.analog.com/media/en/technical-documentation/data-sheets/AD7171.pdf -- AD7780: - * https://www.analog.com/media/en/technical-documentation/data-sheets/ad7780.pdf -- AD7781: - * https://www.analog.com/media/en/technical-documentation/data-sheets/AD7781.pdf - -Required properties: - -- compatible: should be one of - * "adi,ad7170" - * "adi,ad7171" - * "adi,ad7780" - * "adi,ad7781" -- reg: spi chip select number for the device -- vref-supply: the regulator supply for the ADC reference voltage - -Optional properties: - -- powerdown-gpios: must be the device tree identifier of the PDRST pin. If - specified, it will be asserted during driver probe. As the - line is active high, it should be marked GPIO_ACTIVE_HIGH. -- adi,gain-gpios: must be the device tree identifier of the GAIN pin. Only for - the ad778x chips. If specified, it will be asserted during - driver probe. As the line is active low, it should be marked - GPIO_ACTIVE_LOW. -- adi,filter-gpios: must be the device tree identifier of the FILTER pin. Only - for the ad778x chips. If specified, it will be asserted - during driver probe. As the line is active low, it should be - marked GPIO_ACTIVE_LOW. - -Example: - -adc@0 { - compatible = "adi,ad7780"; - reg = <0>; - vref-supply = <&vdd_supply> - - powerdown-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>; - adi,gain-gpios = <&gpio 5 GPIO_ACTIVE_LOW>; - adi,filter-gpios = <&gpio 15 GPIO_ACTIVE_LOW>; -}; diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml new file mode 100644 index 000000000000..931bc4f8ec04 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7780.yaml @@ -0,0 +1,85 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/adi,ad7780.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD7170/AD7171/AD7780/AD7781 analog to digital converters + +maintainers: + - Michael Hennerich <michael.hennerich@analog.com> + +description: | + The ad7780 is a sigma-delta analog to digital converter. This driver provides + reading voltage values and status bits from both the ad778x and ad717x series. + Its interface also allows writing on the FILTER and GAIN GPIO pins on the + ad778x. + + Specifications on the converters can be found at: + AD7170: + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7170.pdf + AD7171: + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7171.pdf + AD7780: + https://www.analog.com/media/en/technical-documentation/data-sheets/ad7780.pdf + AD7781: + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7781.pdf + +properties: + compatible: + enum: + - adi,ad7170 + - adi,ad7171 + - adi,ad7780 + - adi,ad7781 + + reg: + description: + Chip select number for the device + maxItems: 1 + + vref-supply: + description: + The regulator supply for the ADC reference voltage + maxItems: 1 + + powerdown-gpios: + description: + Must be the device tree identifier of the PDRST pin. If + specified, it will be asserted during driver probe. As the + line is active high, it should be marked GPIO_ACTIVE_HIGH. + maxItems: 1 + + adi,gain-gpios: + description: + Must be the device tree identifier of the GAIN pin. Only for + the ad778x chips. If specified, it will be asserted during + driver probe. As the line is active low, it should be marked + GPIO_ACTIVE_LOW. + maxItems: 1 + + adi,filter-gpios: + description: + Must be the device tree identifier of the FILTER pin. Only + for the ad778x chips. If specified, it will be asserted + during driver probe. As the line is active low, it should be + marked GPIO_ACTIVE_LOW. + maxItems: 1 + +required: + - compatible + - reg + - vref-supply + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + adc@0 { + compatible = "adi,ad7780"; + reg = <0>; + vref-supply = <&vdd_supply>; + + powerdown-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>; + adi,gain-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>; + adi,filter-gpios = <&gpio2 15 GPIO_ACTIVE_LOW>; + }; -- 2.21.0
next reply other threads:[~2019-05-18 22:41 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-05-18 22:41 Renato Lui Geh [this message] 2019-05-18 22:41 ` [PATCH] dt-bindings: iio: adc: add adi,ad7780.yaml binding Renato Lui Geh 2019-05-19 11:32 ` Jonathan Cameron 2019-05-19 11:32 ` Jonathan Cameron 2019-05-20 8:32 ` Ardelean, Alexandru 2019-05-20 8:32 ` Ardelean, Alexandru 2019-05-25 0:28 ` Renato Lui Geh 2019-05-26 17:50 ` Jonathan Cameron 2019-05-26 17:50 ` Jonathan Cameron
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