[1/3] dt-bindings: Add ROHM BD79703

Commit Message

Matti Vaittinen Dec. 19, 2024, 11:39 a.m. UTC

The ROHM BD79703 is a 8-bit, 6 channel DAC.

Describe the dt-bindings.

Signed-off-by: Matti Vaittinen <[e-mail]>
---
 .../bindings/iio/dac/rohm,bd79703.yaml        | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/dac/rohm,bd79703.yaml

Comments

Conor Dooley Dec. 19, 2024, 6:59 p.m. UTC | #1

On Thu, Dec 19, 2024 at 01:39:11PM +0200, Matti Vaittinen wrote:
> +    spi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +        dac@0 {

nit: should be a blank line before the child node.
Reviewed-by: Conor Dooley <[e-mail]>

Cheers,
Conor.

> +            compatible = "rohm,bd79703";
> +            reg = <0>;
> +            spi-max-frequency = <30000000>;
> +            vcc-supply = <&vcc>;
> +            vfs-supply = <&vref>;
> +        };
> +    };
> +...
> -- 
> 2.47.0
>

Patch

diff --git a/Documentation/devicetree/bindings/iio/dac/rohm,bd79703.yaml b/Documentation/devicetree/bindings/iio/dac/rohm,bd79703.yaml
new file mode 100644
index 000000000000..c51b4037fd0d
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/rohm,bd79703.yaml
@@ -0,0 +1,61 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2024 ROHM Semiconductor.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/dac/rohm,bd79703.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROHM BD79703 DAC device driver
+
+maintainers:
+  - Matti Vaittinen <[e-mail]>
+
+description: |
+  The ROHM BD79703 is a 6 channel, 8-bit DAC.
+  Datasheet can be found here:
+  https://fscdn.rohm.com/en/products/databook/datasheet/ic/data_converter/dac/bd79702fv-lb_bd79703fv-lb-e.pdf
+
+properties:
+  compatible:
+    const: rohm,bd79703
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency:
+    maximum: 30000000
+
+  vfs-supply:
+    description:
+      The regulator to use as a full scale voltage. The voltage should be between 2.7V .. VCC
+
+  vcc-supply:
+    description:
+      The regulator supplying the operating voltage. Should be between 2.7V ... 5.5V
+
+required:
+  - compatible
+  - reg
+  - spi-max-frequency
+  - vfs-supply
+  - vcc-supply
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+additionalProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        dac@0 {
+            compatible = "rohm,bd79703";
+            reg = <0>;
+            spi-max-frequency = <30000000>;
+            vcc-supply = <&vcc>;
+            vfs-supply = <&vref>;
+        };
+    };
+...