diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.txt b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.txt deleted file mode 100644 index d8652460198e..000000000000 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.txt +++ /dev/null @@ -1,66 +0,0 @@ -Analog Devices AD7606 Simultaneous Sampling ADC - -Required properties for the AD7606: - -- compatible: Must be one of - * "adi,ad7605-4" - * "adi,ad7606-8" - * "adi,ad7606-6" - * "adi,ad7606-4" - * "adi,ad7616" -- reg: SPI chip select number for the device -- spi-max-frequency: Max SPI frequency to use - see: Documentation/devicetree/bindings/spi/spi-bus.txt -- spi-cpha: See Documentation/devicetree/bindings/spi/spi-bus.txt -- avcc-supply: phandle to the Avcc power supply -- interrupts: IRQ line for the ADC - see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt -- adi,conversion-start-gpios: must be the device tree identifier of the CONVST pin. - This logic input is used to initiate conversions on the analog - input channels. As the line is active high, it should be marked - GPIO_ACTIVE_HIGH. - -Optional properties: - -- reset-gpios: must be the device tree identifier of the RESET pin. If specified, - it will be asserted during driver probe. As the line is active high, - it should be marked GPIO_ACTIVE_HIGH. -- standby-gpios: must be the device tree identifier of the STBY pin. This pin is used - to place the AD7606 into one of two power-down modes, Standby mode or - Shutdown mode. As the line is active low, it should be marked - GPIO_ACTIVE_LOW. -- adi,first-data-gpios: must be the device tree identifier of the FRSTDATA pin. - The FRSTDATA output indicates when the first channel, V1, is - being read back on either the parallel, byte or serial interface. - As the line is active high, it should be marked GPIO_ACTIVE_HIGH. -- adi,range-gpios: must be the device tree identifier of the RANGE pin. The polarity on - this pin determines the input range of the analog input channels. If - this pin is tied to a logic high, the analog input range is ±10V for - all channels. If this pin is tied to a logic low, the analog input range - is ±5V for all channels. As the line is active high, it should be marked - GPIO_ACTIVE_HIGH. -- adi,oversampling-ratio-gpios: must be the device tree identifier of the over-sampling - mode pins. As the line is active high, it should be marked - GPIO_ACTIVE_HIGH. - -Example: - - adc@0 { - compatible = "adi,ad7606-8"; - reg = <0>; - spi-max-frequency = <1000000>; - spi-cpol; - - avcc-supply = <&adc_vref>; - - interrupts = <25 IRQ_TYPE_EDGE_FALLING>; - interrupt-parent = <&gpio>; - - adi,conversion-start-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>; - reset-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>; - adi,first-data-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>; - adi,oversampling-ratio-gpios = <&gpio 18 GPIO_ACTIVE_HIGH - &gpio 23 GPIO_ACTIVE_HIGH - &gpio 26 GPIO_ACTIVE_HIGH>; - standby-gpios = <&gpio 24 GPIO_ACTIVE_LOW>; - }; diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml new file mode 100644 index 000000000000..3ecdfa780ae3 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml @@ -0,0 +1,136 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/adi,ad7606.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD7606 Simultaneous Sampling ADC + +maintainers: + - Beniamin Bia + - Stefan Popa + +description: | + Analog Devices AD7606 Simultaneous Sampling ADC + https://www.analog.com/media/en/technical-documentation/data-sheets/ad7606_7606-6_7606-4.pdf + https://www.analog.com/media/en/technical-documentation/data-sheets/AD7616.pdf + +properties: + compatible: + enum: + - adi,ad7605-4 + - adi,ad7606-8 + - adi,ad7606-6 + - adi,ad7606-4 + - adi,ad7616 + + reg: + maxItems: 1 + + spi-cpha: true + + avcc-supply: + description: + Phandle to the Avcc power supply + maxItems: 1 + + interrupts: + maxItems: 1 + + adi,conversion-start-gpios: + description: + Must be the device tree identifier of the CONVST pin. + This logic input is used to initiate conversions on the analog + input channels. As the line is active high, it should be marked + GPIO_ACTIVE_HIGH. + maxItems: 1 + + reset-gpios: + description: + Must be the device tree identifier of the RESET 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 + + standby-gpios: + description: + Must be the device tree identifier of the STBY pin. This pin is used + to place the AD7606 into one of two power-down modes, Standby mode or + Shutdown mode. As the line is active low, it should be marked + GPIO_ACTIVE_LOW. + maxItems: 1 + + adi,first-data-gpios: + description: + Must be the device tree identifier of the FRSTDATA pin. + The FRSTDATA output indicates when the first channel, V1, is + being read back on either the parallel, byte or serial interface. + As the line is active high, it should be marked GPIO_ACTIVE_HIGH. + maxItems: 1 + + adi,range-gpios: + description: + Must be the device tree identifier of the RANGE pin. The polarity on + this pin determines the input range of the analog input channels. If + this pin is tied to a logic high, the analog input range is ±10V for + all channels. If this pin is tied to a logic low, the analog input range + is ±5V for all channels. As the line is active high, it should be marked + GPIO_ACTIVE_HIGH. + maxItems: 1 + + adi,oversampling-ratio-gpios: + description: + Must be the device tree identifier of the over-sampling + mode pins. As the line is active high, it should be marked + GPIO_ACTIVE_HIGH. + maxItems: 1 + + adi,sw-mode: + description: + Software mode of operation, so far available only for ad7616. + It is enabled when all three oversampling mode pins are connected to + high level. The device is configured by the corresponding registers. If the + adi,oversampling-ratio-gpios property is defined, then the driver will set the + oversampling gpios to high. Otherwise, it is assumed that the pins are hardwired + to VDD. + type: boolean + +required: + - compatible + - reg + - spi-cpha + - avcc-supply + - interrupts + - adi,conversion-start-gpios + +examples: + - | + #include + #include + spi0 { + #address-cells = <1>; + #size-cells = <0>; + + adc@0 { + compatible = "adi,ad7606-8"; + reg = <0>; + spi-max-frequency = <1000000>; + spi-cpol; + spi-cpha; + + avcc-supply = <&adc_vref>; + + interrupts = <25 IRQ_TYPE_EDGE_FALLING>; + interrupt-parent = <&gpio>; + + adi,conversion-start-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>; + reset-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>; + adi,first-data-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>; + adi,oversampling-ratio-gpios = <&gpio 18 GPIO_ACTIVE_HIGH + &gpio 23 GPIO_ACTIVE_HIGH + &gpio 26 GPIO_ACTIVE_HIGH>; + standby-gpios = <&gpio 24 GPIO_ACTIVE_LOW>; + adi,sw-mode; + }; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index 92c2603b71b7..f0c03740b9fb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -908,7 +908,7 @@ L: linux-iio@vger.kernel.org W: http://ez.analog.com/community/linux-device-drivers S: Supported F: drivers/iio/adc/ad7606.c -F: Documentation/devicetree/bindings/iio/adc/adi,ad7606.txt +F: Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml ANALOG DEVICES INC AD7768-1 DRIVER M: Stefan Popa