[PATCH 05/11] dt-bindings: i2c: Add Cortina Systems CS7542 I2C controller

[Fil Dunsky via B4 Relay]

From: Fil Dunsky <filipp.dunsky at gmail.com>

Add a binding for the I2C ("Bi-Wire") controller of the Cortina Systems
CS75xx SoCs.

Signed-off-by: Fil Dunsky <filipp.dunsky at gmail.com>
---
 .../bindings/i2c/cortina,cs7542-i2c.yaml           | 56 ++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/Documentation/devicetree/bindings/i2c/cortina,cs7542-i2c.yaml b/Documentation/devicetree/bindings/i2c/cortina,cs7542-i2c.yaml
new file mode 100644
index 000000000..f70984bd7
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/cortina,cs7542-i2c.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/cortina,cs7542-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cortina Systems CS7542 I2C controller
+
+maintainers:
+  - Fil Dunsky <filipp.dunsky at gmail.com>
+
+description:
+  The I2C ("Bi-Wire") controller of the Cortina Systems CS75xx (Goldengate
+  G2) SoCs. It transfers one byte per command and runs from the peripheral
+  (APB) clock through a 16-bit prescaler.
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+  compatible:
+    const: cortina,cs7542-i2c
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-frequency:
+    enum: [100000, 400000]
+    default: 100000
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c at f00700e8 {
+        compatible = "cortina,cs7542-i2c";
+        reg = <0xf00700e8 0x28>;
+        interrupt-parent = <&intc>;
+        interrupts = <11>;
+        clocks = <&apb_clk>;
+        clock-frequency = <400000>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+    };

-- 
2.53.0