[RFC PATCH 1/3] dt-bindings: iio: adc: Add TI ADS1120 binding

Ajith Anandhan
2025-10-30T16:34:51Z

Add device tree binding documentation for the Texas Instruments
ADS1120.

The binding defines required properties like compatible, reg, and
SPI configuration parameters.

Link: https://www.ti.com/lit/gpn/ads1120
Signed-off-by: Ajith Anandhan <ajithanandhan0406@gmail.com>
---
.../bindings/iio/adc/ti,ads1120.yaml | 50 +++++++++++++++++++
1 file changed, 50 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,ads1120.yaml

diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads1120.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads1120.yaml
new file mode 100644
index 000000000..09285c981
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads1120.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,ads1120.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments ADS1120 4-channel, 16-bit, 2kSPS ADC
+
+maintainers:
+ - Ajith Anandhan <ajithanandhan0406@gmail.com>
+
+properties:
+ compatible:
+ const: ti,ads1120
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 4000000
+
+ spi-cpha: true
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "ti,ads1120";
+ reg = <0>;
+ spi-max-frequency = <4000000>;
+ spi-cpha;
+ };
+ };
+...
+
--
2.34.1