[PATCH 05/13] dt-bindings: i2c: add bindings for microchip mpfs i2c

[conor.dooley at microchip.com]

From: Conor Dooley <conor.dooley at microchip.com>

Add device tree bindings for the i2c controller on
the Microchip PolarFire SoC.

Signed-off-by: Conor Dooley <conor.dooley at microchip.com>
Signed-off-by: Daire McNamara <daire.mcnamara at microchip.com>
---
 .../bindings/i2c/microchip,mpfs-i2c.yaml      | 74 +++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/microchip,mpfs-i2c.yaml

diff --git a/Documentation/devicetree/bindings/i2c/microchip,mpfs-i2c.yaml b/Documentation/devicetree/bindings/i2c/microchip,mpfs-i2c.yaml
new file mode 100644
index 000000000000..bc4ea4498d35
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/microchip,mpfs-i2c.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/microchip,mpfs-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip MPFS I2C Controller Device Tree Bindings
+
+maintainers:
+  - Daire McNamara <daire.mcnamara at microchip.com>
+
+description: |
+  This I2C controller is found on the Microchip PolarFire SoC.
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+  compatible:
+    enum:
+      - microchip,mpfs-i2c # Microchip PolarFire SoC compatible SoCs
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    description: Phandle of the clock feeding the I2C controller.
+    minItems: 1
+
+  clock-frequency:
+    description: |
+      Desired I2C bus clock frequency in Hz. As only Standard and Fast
+      modes are supported, possible values are 100000 and 400000.
+    enum: [100000, 400000]
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/microchip,mpfs-clock.h>
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        i2c at 2010a000 {
+            compatible = "microchip,mpfs-i2c";
+            reg = <0 0x2010a000 0 0x1000>;
+            interrupts = <58>;
+            clock-frequency = <100000>;
+            clocks = <&clkcfg CLK_I2C0>;
+        };
+    };
+  - |
+    #include <dt-bindings/clock/microchip,mpfs-clock.h>
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        i2c at 2010b000 {
+            compatible = "microchip,mpfs-i2c";
+            reg = <0 0x2010b000 0 0x1000>;
+            interrupts = <61>;
+            clock-frequency = <100000>;
+            clocks = <&clkcfg CLK_I2C1>;
+        };
+    };
+...
-- 
2.33.1