[PATCH] dt-bindings: pinctrl: stm32: add missing entries for gpio subnodes

[Alexandre Torgue]

Add "interrupt-controller" and gpio-line-names to gpio subnodes in order to
fix dtb validation.

Signed-off-by: Alexandre Torgue <alexandre.torgue at foss.st.com>

diff --git a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml
index d35dcc4f0242..92582cccbb1b 100644
--- a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml
@@ -65,6 +65,10 @@ patternProperties:
       '#gpio-cells':
         const: 2
 
+      interrupt-controller: true
+      '#interrupt-cells':
+        const: 2
+
       reg:
         maxItems: 1
       clocks:
@@ -80,6 +84,8 @@ patternProperties:
         minimum: 1
         maximum: 16
 
+      gpio-line-names: true
+
       st,bank-name:
         description:
           Should be a name string for this bank as specified in the datasheet.
-- 
2.17.1