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Subject[PATCH v3] Add binding for IIO ADS1018
Date
v3 has me as suggested maintainer per Daniel's feedback and corrected id

Signed-off-by: Iain Hunter <drhunter95@gmail.com>
---
.../bindings/iio/adc/ti,ads1018.yaml | 109 ++++++++++++++++++
1 file changed, 109 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,ads1018.yaml

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..14345bfb71dc
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads1018.yaml
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: (GPL-2.0 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 4 channel I2C analog to digital converter
+
+maintainers:
+ - Iain Hunter <iain@hunterembedded.co.uk>
+
+description: |
+ Datasheet at: https://www.ti.com/lit/gpn/ads1018
+ Supports both single ended and differential channels.
+
+properties:
+ compatible:
+ const: ti,ads1018
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+patternProperties:
+ "^channel@[0-7]+$":
+ type: object
+ description:
+ Child nodes needed for each channel that the platform uses.
+
+ properties:
+ reg:
+ description: |
+ 0: Voltage over AIN0 and AIN1.
+ 1: Voltage over AIN0 and AIN3.
+ 2: Voltage over AIN1 and AIN3.
+ 3: Voltage over AIN2 and AIN3.
+ 4: Voltage over AIN0 and GND.
+ 5: Voltage over AIN1 and GND.
+ 6: Voltage over AIN2 and GND.
+ 7: Voltage over AIN3 and GND.
+ items:
+ - minimum: 0
+ maximum: 7
+
+ ti,gain:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+ description: |
+ pga is the programmable gain amplifier (values are full scale)
+ 0: +/- 6.144 V
+ 1: +/- 4.096 V
+ 2: +/- 2.048 V (default)
+ 3: +/- 1.024 V
+ 4: +/- 0.512 V
+ 5: +/- 0.256 V
+
+ ti,datarate:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 6
+ description: |
+ Data acquisition rate in samples per second
+ 0: 128
+ 1: 250
+ 2: 490
+ 3: 920
+ 4: 1600 (default)
+ 5: 2400
+ 6: 3300
+
+ required:
+ - reg
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@1 {
+ compatible = "ti,ads1018";
+ reg = <0x1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ channel@4 {
+ reg = <4>;
+ ti,gain = <3>;
+ ti,datarate = <5>;
+ };
+ };
+ };
+...
--
2.25.1
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