[PATCH v2 1/2] dt-bindings: gpio: otto-gpio: Add gpio-ranges

Pinctrl is required for RTL9607C GPIOs to work, otherwise controller
won't be routed to SoC pins. Add corresponding requirement to
Documentation for realtek,rtl9607-gpio.

Signed-off-by: Michael Zavertkin <[email protected]>
---
 .../bindings/gpio/realtek,otto-gpio.yaml           | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml b/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml
index b18f8f0ca0ae..96396f968e78 100644
--- a/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml
@@ -40,6 +40,8 @@ properties:
 
   gpio-controller: true
 
+  gpio-ranges: false
+
   ngpios:
     minimum: 1
     maximum: 32
@@ -75,6 +77,18 @@ required:
   - "#gpio-cells"
   - gpio-controller
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: realtek,rtl9607-gpio
+    then:
+      properties:
+        gpio-ranges: true
+      required:
+        - gpio-ranges
+
 additionalProperties: false
 
 dependencies:
-- 
2.54.0