Add documentation for Texas Instruments ADS1018 and ADS1118
analog-to-digital converters.

Signed-off-by: Kurt Borja <kuurtb@gmail.com>
---
 .../devicetree/bindings/iio/adc/ti,ads1018.yaml    | 93 ++++++++++++++++++++++
 MAINTAINERS                                        |  6 ++
 2 files changed, 99 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads1018.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads1018.yaml
new file mode 100644
index 000000000000..021f2a3ca4be
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads1018.yaml
@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/ti,ads1018.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI ADS1018/ADS1118 SPI analog to digital converter
+
+maintainers:
+  - Kurt Borja <kuurtb@gmail.com>
+
+description: |
+  The ADS1018/ADS1118 is a precision, low-power, 12-bit or 16-bit, noise-free,
+  analog-to-digital converter (ADC). It integrates a programmable gain amplifier
+  (PGA), voltage reference, oscillator and high-accuracy temperature sensor.
+
+  Datasheets:
+    - ADS1018: https://www.ti.com/lit/ds/symlink/ads1018.pdf
+    - ADS1118: https://www.ti.com/lit/ds/symlink/ads1118.pdf
+
+properties:
+  compatible:
+    enum:
+      - ti,ads1018
+      - ti,ads1118
+
+  reg:
+    maxItems: 1
+
+  vdd-supply: true
+
+  spi-max-frequency:
+    maximum: 4000000
+
+  spi-cpha: true
+
+  interrupts:
+    description: DOUT/DRDY (Data Out/Data Ready) line.
+    maxItems: 1
+
+  drdy-gpios:
+    description:
+      Extra GPIO line connected to DOUT/DRDY (Data Out/Data Ready). This allows
+      distinguishing between interrupts triggered by the data-ready signal and
+      interrupts triggered by an SPI transfer.
+    maxItems: 1
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+  '#io-channel-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - vdd-supply
+  - '#address-cells'
+  - '#size-cells'
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: true
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/gpio/gpio.h>
+
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        adc@0 {
+            compatible = "ti,ads1118";
+            reg = <0>;
+
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            spi-max-frequency = <4000000>;
+            spi-cpha;
+
+            vdd-supply = <&vdd_3v3_reg>;
+
+            interrupts-extended = <&gpio 14 IRQ_TYPE_EDGE_FALLING>;
+            drdy-gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 31d98efb1ad1..3d5295b5d6eb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -25646,6 +25646,12 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/iio/adc/ti,ads1119.yaml
 F:	drivers/iio/adc/ti-ads1119.c
 
+TI ADS1018 ADC DRIVER
+M:	Kurt Borja <kuurtb@gmail.com>
+L:	linux-iio@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/iio/adc/ti,ads1018.yaml
+
 TI ADS7924 ADC DRIVER
 M:	Hugo Villeneuve <hvilleneuve@dimonoff.com>
 L:	linux-iio@vger.kernel.org

-- 
2.52.0

On 28/11/2025 04:37, Kurt Borja wrote:
> +
> +  interrupts:
> +    description: DOUT/DRDY (Data Out/Data Ready) line.
> +    maxItems: 1
> +
> +  drdy-gpios:
> +    description:
> +      Extra GPIO line connected to DOUT/DRDY (Data Out/Data Ready). This allows
> +      distinguishing between interrupts triggered by the data-ready signal and
> +      interrupts triggered by an SPI transfer.
> +    maxItems: 1
> +
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 0

These two properties are not correct now - you do not have any children.

> +
> +  '#io-channel-cells':
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - vdd-supply
> +  - '#address-cells'
> +  - '#size-cells'

And they should not be required.


Best regards,
Krzysztof

On Fri Nov 28, 2025 at 4:43 AM -05, Krzysztof Kozlowski wrote:
> On 28/11/2025 04:37, Kurt Borja wrote:
>> +
>> +  interrupts:
>> +    description: DOUT/DRDY (Data Out/Data Ready) line.
>> +    maxItems: 1
>> +
>> +  drdy-gpios:
>> +    description:
>> +      Extra GPIO line connected to DOUT/DRDY (Data Out/Data Ready). This allows
>> +      distinguishing between interrupts triggered by the data-ready signal and
>> +      interrupts triggered by an SPI transfer.
>> +    maxItems: 1
>> +
>> +  '#address-cells':
>> +    const: 1
>> +
>> +  '#size-cells':
>> +    const: 0
>
> These two properties are not correct now - you do not have any children.
>
>> +
>> +  '#io-channel-cells':
>> +    const: 1
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - vdd-supply
>> +  - '#address-cells'
>> +  - '#size-cells'
>
> And they should not be required.

I'll drop these. Thank you, Krzysztof!

>
>
> Best regards,
> Krzysztof


-- 
 ~ Kurt