Commit 416f882c authored by Beniamin Bia's avatar Beniamin Bia Committed by Jonathan Cameron

dt-bindings: iio: adc: Migrate AD7606 documentation to yaml

The documentation for ad7606 was migrated to yaml.
Signed-off-by: default avatarBeniamin Bia <beniamin.bia@analog.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 75338cc8
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>;
};
# 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 <beniamin.bia@analog.com>
- Stefan Popa <stefan.popa@analog.com>
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 <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
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;
};
};
...
...@@ -908,7 +908,7 @@ L: linux-iio@vger.kernel.org ...@@ -908,7 +908,7 @@ L: linux-iio@vger.kernel.org
W: http://ez.analog.com/community/linux-device-drivers W: http://ez.analog.com/community/linux-device-drivers
S: Supported S: Supported
F: drivers/iio/adc/ad7606.c 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 ANALOG DEVICES INC AD7768-1 DRIVER
M: Stefan Popa <stefan.popa@analog.com> M: Stefan Popa <stefan.popa@analog.com>
......
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