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Mon, 7 Jan 2019 08:26:59 -0500 From: Stefan Popa To: , CC: , , , , , , , , , Subject: [PATCH 2/2] dt-bindings: iio: adc: Add docs for AD7768-1 Date: Mon, 7 Jan 2019 15:26:49 +0200 Message-ID: <1546867609-4273-1-git-send-email-stefan.popa@analog.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57;IPV:NLI;CTRY:US;EFV:NLI;SFV:NSPM;SFS:(10009020)(396003)(39860400002)(136003)(376002)(346002)(2980300002)(3190300001)(189003)(199004)(356004)(6666004)(478600001)(7696005)(336012)(316002)(110136005)(51416003)(4326008)(54906003)(6306002)(16586007)(47776003)(7636002)(305945005)(186003)(116002)(77096007)(106002)(5660300001)(7416002)(966005)(72206003)(26005)(36756003)(8936002)(50466002)(48376002)(246002)(126002)(8676002)(44832011)(486006)(50226002)(106466001)(2906002)(107886003)(476003)(426003)(2616005);DIR:OUT;SFP:1101;SCL:1;SRVR:BL0PR03MB4257;H:nwd2mta2.analog.com;FPR:;SPF:Pass;LANG:en;PTR:nwd2mail11.analog.com;MX:1;A:1; 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Signed-off-by: Stefan Popa --- .../devicetree/bindings/iio/adc/adi,ad7768-1.txt | 34 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.txt diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.txt b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.txt new file mode 100644 index 0000000..bf619fa8 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.txt @@ -0,0 +1,34 @@ +Analog Devices AD7768-1 ADC device driver + +Required properties for the AD7768-1: + +- compatible: Must be "adi,ad7768-1" +- reg: SPI chip select number for the device +- spi-max-frequency: Max SPI frequency to use + see: Documentation/devicetree/bindings/spi/spi-bus.txt +- clocks: phandle to the master clock (mclk) + see: Documentation/devicetree/bindings/clock/clock-bindings.txt +- clock-names: Must be "mclk". +- interrupts: IRQ line for the ADC + see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt +- vref-supply: vref supply can be used as reference for conversion +- adi,sync-in-gpios: must be the device tree identifier of the SYNC-IN pin. A pulse + is always required if the configuration is changed in any way, for example + if the filter decimation rate changes. As the line is active low, it should + be marked GPIO_ACTIVE_LOW. + +Example: + + adc@0 { + compatible = "adi,ad7768-1"; + reg = <0>; + spi-max-frequency = <2000000>; + spi-cpol; + spi-cpha; + vref-supply = <&adc_vref>; + interrupts = <25 IRQ_TYPE_EDGE_RISING>; + interrupt-parent = <&gpio>; + adi,sync-in-gpios = <&gpio 22 GPIO_ACTIVE_LOW>; + clocks = <&ad7768_mclk>; + clock-names = "mclk"; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 3ba3811..e5613b6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -868,6 +868,7 @@ L: linux-iio@vger.kernel.org W: http://ez.analog.com/community/linux-device-drivers S: Supported F: drivers/iio/adc/ad7768-1.c +F: Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.txt ANALOG DEVICES INC AD9389B DRIVER M: Hans Verkuil -- 2.7.4