[PATCH v2 1/3] dt-bindings: iio: adc: sophgo,cv18xx-saradc.yaml: Add Sophgo SARADC binding documentation

Thomas Bonnefille
2024-07-05T13:42:33Z

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 | 63 ++++++++++++++++++++++
1 file changed, 63 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..31bd8ac6dfa5
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/sophgo,cv18xx-saradc.yaml
@@ -0,0 +1,63 @@
+# 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:
+ oneOf:
+ - items:
+ - enum:
+ - sophgo,cv1800b-saradc
+ - const: sophgo,cv18xx-saradc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ description:
+ SARADC will use the presence of this clock to determine if the controller
+ needs to be explicitly clocked by it (Active domain) or if it is part of
+ the No-Die Domain, along with the RTC, which does not require explicit
+ clocking.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sophgo,cv1800.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ /* ADC in the Active domain */
+ adc@30f0000 {
+ compatible = "sophgo,cv1800b-saradc", "sophgo,cv18xx-saradc";
+ clocks = <&clk CLK_SARADC>;
+ interrupts = <100 IRQ_TYPE_LEVEL_HIGH>;
+ reg = <0x030F0000 0x1000>;
+ };
+ - |
+ #include <dt-bindings/clock/sophgo,cv1800.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ /* ADC in the No-Die domain */
+ adc@502c000 {
+ compatible = "sophgo,cv1800b-saradc", "sophgo,cv18xx-saradc";
+ reg = <0x0502C000 0x1000>;
+ };

--
2.45.2