[PATCH 1/2] dt-bindings: gpio: Add CAT9532 GPIO

[Alban Bedel]

Add devicetree binding document for CAT9532 LED dimmer as GPIO
controller.

Signed-off-by: Alban Bedel <alban.bedel@xxxxxxxxxx>
---
 .../bindings/gpio/onnn,cat9532.yaml           | 52 +++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/onnn,cat9532.yaml

diff --git a/Documentation/devicetree/bindings/gpio/onnn,cat9532.yaml b/Documentation/devicetree/bindings/gpio/onnn,cat9532.yaml
new file mode 100644
index 0000000000000..6f3e3d0f4f29b
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/onnn,cat9532.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/onnn,cat9532.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: On Semiconductor CAT9532 LED dimmer as GPIO controller
+
+maintainers:
+  - Alban Bedel <alban.bedel@xxxxxxxxxx>
+
+properties:
+  compatible:
+    const: onnn,cat9532
+
+  reg:
+    maxItems: 1
+
+  gpio-controller: true
+
+  "#gpio-cells":
+    const: 2
+
+  ngpios:
+    minimum: 1
+    maximum: 16
+
+required:
+  - compatible
+  - reg
+  - gpio-controller
+  - "#gpio-cells"
+  - ngpios
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        gpio@60 {
+            compatible = "onnn,cat9532";
+            reg = <0x60>;
+
+            gpio-controller;
+            #gpio-cells = <2>;
+
+            ngpios = <16>;
+        };
+    };
-- 
2.39.5