[PATCH v1 1/2] dt-bindings: gpio: add fcs,fxl6408-gpio binding document

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From: Emanuele Ghidoli <emanuele.ghidoli@xxxxxxxxxxx>

Add binding document for Fairchild FXL6408 GPIO expander.

Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@xxxxxxxxxxx>
---
 .../bindings/gpio/fcs,fxl6408-gpio.yaml       | 73 +++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/fcs,fxl6408-gpio.yaml

diff --git a/Documentation/devicetree/bindings/gpio/fcs,fxl6408-gpio.yaml b/Documentation/devicetree/bindings/gpio/fcs,fxl6408-gpio.yaml
new file mode 100644
index 000000000000..ccf946040d00
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/fcs,fxl6408-gpio.yaml
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/fcs,fxl6408-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: FXL6408 GPIO driver
+
+maintainers:
+  - Emanuele Ghidoli <emanuele.ghidoli@xxxxxxxxxxx>
+
+description: |
+  Driver for Fairchild FXL6408 GPIO expander
+
+properties:
+  compatible:
+    enum:
+      - fcs,fxl6408
+
+  reg:
+    maxItems: 1
+
+  "#gpio-cells":
+    const: 2
+
+  gpio-controller: true
+
+  gpio-line-names:
+    minItems: 1
+    maxItems: 8
+
+patternProperties:
+  "^(hog-[0-9]+|.+-hog(-[0-9]+)?)$":
+    type: object
+    properties:
+      gpio-hog: true
+      gpios: true
+      input: true
+      output-high: true
+      output-low: true
+      line-name: true
+
+    required:
+      - gpio-hog
+      - gpios
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - gpio-controller
+  - "#gpio-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        gpio_expander_43: gpio-expander@43 {
+            compatible = "fcs,fxl6408";
+            gpio-controller;
+            #gpio-cells = <2>;
+            reg = <0x43>;
+            gpio-line-names = "Wi-Fi_W_DISABLE", "Wi-Fi_WKUP_WLAN",
+              "PWR_EN_+V3.3_WiFi_N", "PCIe_REF_CLK_EN",
+              "USB_RESET_N", "USB_BYPASS_N", "Wi-Fi_PDn",
+              "Wi-Fi_WKUP_BT";
+        };
+    };
-- 
2.25.1




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