[RFC PATCH 2/3] dt-bindings: gpio: Add binding documentation for Etron EJ168/EJ188/EJ198

From: Martin Blumenstingl
Date: Sun Oct 04 2020 - 14:00:40 EST


Etron EJ168/EJ188/EJ198 are USB xHCI host controllers which embed a GPIO
controller.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
---
.../devicetree/bindings/gpio/etron,ej1x8.yaml | 48 +++++++++++++++++++
1 file changed, 48 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/etron,ej1x8.yaml

diff --git a/Documentation/devicetree/bindings/gpio/etron,ej1x8.yaml b/Documentation/devicetree/bindings/gpio/etron,ej1x8.yaml
new file mode 100644
index 000000000000..fa554045bdb5
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/etron,ej1x8.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/etron,ej1x8.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GPIO controller embedded into the EJ168/EJ188/EJ198 xHCI controllers
+
+maintainers:
+ - Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
+
+properties:
+ compatible:
+ enum:
+ - pci1b6f,7023
+ - pci1b6f,7052
+
+ reg:
+ maxItems: 1
+
+ "#gpio-cells":
+ const: 2
+
+ gpio-controller: true
+
+required:
+ - compatible
+ - reg
+ - "#gpio-cells"
+ - gpio-controller
+
+additionalProperties: false
+
+examples:
+ - |
+ pcie {
+ #address-cells = <3>;
+ #size-cells = <2>;
+
+ gpio@0,0,0 {
+ compatible = "pci1b6f,7023";
+ reg = <0x0 0x0 0x0 0x0 0x1000>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+ };
+
+...
--
2.28.0