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author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-09-09 18:59:41 +0100 |
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committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-09-21 20:01:49 +0100 |
commit | dd29b1297377bfa025b6fd293afbd9f825bbceb1 (patch) | |
tree | e1253d678a8bbbb39e26a942cfcab6b05a1a7146 /Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml | |
parent | dt-bindings:iio:adc:adi,ad7949 yaml conversion (diff) | |
download | linux-dev-dd29b1297377bfa025b6fd293afbd9f825bbceb1.tar.xz linux-dev-dd29b1297377bfa025b6fd293afbd9f825bbceb1.zip |
dt-bindings:iio:adc:adi,ad7768-1 yaml conversion
Fairly straight conversion. The one oddity in the original binding
is that spi-cpha and spi-cpol were not marked as required, but were
in the example. Looking at the datasheet, there isn't any documented
flexibility in the possible SPI modes, so I have moved these to requires.
For spi-max-frequency I have gone the other way. I absolutely agree
that it is good to specify this in the dt-binding, but it's not
strictly required.
As Stefan's email is bouncing I have gone with Michael as maintainer
of this one as it falls under the ADI catch all entry in MAINTAINERS.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Link: https://lore.kernel.org/r/20200909175946.395313-16-jic23@kernel.org
Diffstat (limited to 'Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml new file mode 100644 index 000000000000..d3733ad8785a --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml @@ -0,0 +1,89 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/adi,ad7768-1.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD7768-1 ADC device driver + +maintainers: + - Michael Hennerich <michael.hennerich@analog.com> + +description: | + Datasheet at: + https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf + +properties: + compatible: + const: adi,ad7768-1 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + const: mclk + + interrupts: + maxItems: 1 + + vref-supply: + description: + ADC reference voltage supply + + adi,sync-in-gpios: + description: + Enables synchronization of multiple devices that require simultaneous + sampling. 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. + + reset-gpios: + maxItems: 1 + + spi-max-frequency: true + + spi-cpol: true + spi-cpha : true + + "#io-channel-cells": + const: 1 + +required: + - compatible + - reg + - clocks + - clock-names + - vref-supply + - spi-cpol + - spi-cpha + - adi,sync-in-gpios + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/gpio/gpio.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + + 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>; + reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>; + clocks = <&ad7768_mclk>; + clock-names = "mclk"; + }; + }; +... |