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

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Message-Id: <20240812-sg2002-adc-v4-1-599bdb67592f@bootlin.com>
Date: Mon, 12 Aug 2024 17:00:55 +0200
From: Thomas Bonnefille <thomas.bonnefille@...tlin.com>
To: Jonathan Cameron <jic23@...nel.org>, 
 Lars-Peter Clausen <lars@...afoo.de>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Chen Wang <unicorn_wang@...look.com>, 
 Inochi Amaoto <inochiama@...look.com>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 Miquèl Raynal <miquel.raynal@...tlin.com>, 
 linux-iio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org, 
 Thomas Bonnefille <thomas.bonnefille@...tlin.com>
Subject: [PATCH v4 1/3] dt-bindings: iio: adc: sophgo,cv18xx-saradc.yaml:
 Add Sophgo CV18XX SARADC binding

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

Signed-off-by: Thomas Bonnefille <thomas.bonnefille@...tlin.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@...tlin.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@...0000 {
+        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