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authorSascha Hauer <s.hauer@pengutronix.de>2019-10-15 10:55:58 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2019-10-15 10:55:58 +0200
commit2036f2866753a28b2783ad6dc78a40ca5345e6d8 (patch)
tree468b1c17b06a2377c5f8e6d711d8f3187f60667f /dts/Bindings/iio/adc/adi,ad7606.txt
parent785f926d4527184194b6424bc39ce367e2cea7d8 (diff)
downloadbarebox-2036f2866753a28b2783ad6dc78a40ca5345e6d8.tar.gz
barebox-2036f2866753a28b2783ad6dc78a40ca5345e6d8.tar.xz
dts: update to v5.4-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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-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>;
- };