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authorIoana Risteiu <Ioana.Risteiu@analog.com>2025-08-26 01:13:50 +0300
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2025-08-31 13:36:25 +0100
commita9ee71011a5347dd77887e2c5c2f87f01acd3efb (patch)
treeeb73abd8cfcf230b5e8f23b87d626539bf89190b /Documentation
parentiio: adc: adi-axi-adc: add axi_adc_num_lanes_set (diff)
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dt-bindings: iio: adc: add IIO backend support
Add the generic io-backends property to the AD7779 binding to enable support for the IIO backend framework. Also add the adi,num-lanes property to set the number of lanes used by AD7779. Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Ioana Risteiu <Ioana.Risteiu@analog.com> Link: https://patch.msgid.link/20250825221355.6214-3-Ioana.Risteiu@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml44
1 files changed, 43 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml
index 044f92f39cfa..ba3f7b2bd6cf 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7779.yaml
@@ -80,11 +80,36 @@ properties:
reset-gpios:
maxItems: 1
+ io-backends:
+ maxItems: 1
+
+ adi,num-lanes:
+ description:
+ Number of lanes on which the data is sent on the output when the data
+ output interface is used.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2, 4]
+ default: 4
+
required:
- compatible
- reg
- clocks
- - interrupts
+
+allOf:
+ - if:
+ not:
+ required:
+ - io-backends
+ then:
+ properties:
+ adi,num-lanes: false
+
+oneOf:
+ - required:
+ - interrupts
+ - required:
+ - io-backends
unevaluatedProperties: false
@@ -107,4 +132,21 @@ examples:
clocks = <&adc_clk>;
};
};
+
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "adi,ad7779";
+ reg = <0>;
+ start-gpios = <&gpio0 87 GPIO_ACTIVE_LOW>;
+ reset-gpios = <&gpio0 93 GPIO_ACTIVE_LOW>;
+ clocks = <&adc_clk>;
+ io-backends = <&iio_backend>;
+ adi,num-lanes = <4>;
+ };
+ };
...