[PATCH 1/2] dt-bindings: iio: adc: ti,ads112c04: Add binding for ADS112C04

Add device tree binding documentation for Texas Instruments ADS112C04
I2C Analog-to-Digital Converters.

These devices provide 4-channel, 16-bit delta-sigma ADCs with an I2C
interface, programmable gain amplifier (PGA), and data-ready (DRDY)
interrupt output.

Signed-off-by: Kyle Hsieh <[email protected]>
---
 .../devicetree/bindings/iio/adc/ti,ads112c04.yaml  | 76 ++++++++++++++++++++++
 1 file changed, 76 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads112c04.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads112c04.yaml
new file mode 100644
index 000000000000..55842fca1215
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads112c04.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,ads112c04.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments ADS112C04 ADC
+
+maintainers:
+  - Kyle Hsieh <[email protected]>
+
+description: |
+  The ADS112C04 (16-bit) are precision analog-to-digital converters (ADCs)
+  with an I2C interface. They feature a flexible input multiplexer, a
+  low-noise programmable gain amplifier (PGA), two programmable excitation
+  current sources, a voltage reference, and a precision temperature sensor.
+
+properties:
+  compatible:
+    enum:
+      - ti,ads112c04
+
+  reg:
+    maxItems: 1
+    description: I2C address of the device.
+
+  interrupts:
+    maxItems: 1
+    description:
+      Data ready (DRDY) interrupt output. It is asserted low when a new
+      conversion is ready.
+
+  "#io-channel-cells":
+    const: 1
+
+  reset-gpios:
+    maxItems: 1
+    description:
+      GPIO connected to the RESET pin. Active low.
+
+  avdd-supply:
+    description: Analog power supply (AVDD).
+
+  dvdd-supply:
+    description: Digital power supply (DVDD).
+
+  vref-supply:
+    description: External reference power supply (connected to REFP/REFN).
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/gpio/gpio.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        adc@40 {
+            compatible = "ti,ads112c04";
+            reg = <0x40>;
+            interrupt-parent = <&gpio>;
+            interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
+            #io-channel-cells = <1>;
+            reset-gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+            avdd-supply = <&vdd_3v3_reg>;
+            dvdd-supply = <&vdd_3v3_reg>;
+            vref-supply = <&vref_reg>;
+        };
+    };
+...

-- 
2.34.1