[PATCH v4 1/3] dt-bindings: iio: adc: sophgo,cv18xx-saradc.yaml: Add Sophgo CV18XX SARADC binding

Thomas Bonnefille
2024-08-12T15:01:20Z

The Sophgo SARADC is a Successive Approximation ADC that can be found in
the Sophgo SoC.

Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
---
.../bindings/iio/adc/sophgo,cv18xx-saradc.yaml | 85 ++++++++++++++++++++++
1 file changed, 85 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/sophgo,cv18xx-saradc.yaml b/Documentation/devicetree/bindings/iio/adc/sophgo,cv18xx-saradc.yaml
new file mode 100644
index 000000000000..846590808e5f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/sophgo,cv18xx-saradc.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/sophgo,cv18xx-saradc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title:
+ Sophgo CV18XX SoC series 3 channels Successive Approximation Analog to
+ Digital Converters
+
+maintainers:
+ - Thomas Bonnefille <thomas.bonnefille@bootlin.com>
+
+description:
+ Datasheet at https://github.com/sophgo/sophgo-doc/releases
+
+properties:
+ compatible:
+ const: sophgo,cv1800b-saradc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+patternProperties:
+ "^channel@[0-3]+$":
+ $ref: adc.yaml
+
+ description: |
+ Represents the channels of the ADC.
+
+ properties:
+ reg:
+ description: |
+ The channel number. It can have up to 3 channels numbered from 0 to 2.
+ items:
+ - minimum: 0
+ maximum: 2
+
+ required:
+ - reg
+
+ additionalProperties: false
+
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sophgo,cv1800.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ adc@30f0000 {
+ compatible = "sophgo,cv1800b-saradc";
+ reg = <0x030f0000 0x1000>;
+ clocks = <&clk CLK_SARADC>;
+ interrupts = <100 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0>;
+ };
+ channel@1 {
+ reg = <1>;
+ };
+ channel@2 {
+ reg = <2>;
+ };
+ };

--
2.46.0