[PATCH v1 3/8] dt-bindings: gpio: pca9570: add gpio-line-names property

[Leonard Göhrs <l.goehrs@xxxxxxxxxxxxxx>]

This patch allows giving each of the controller's pins a meaningful
name.

Signed-off-by: Leonard Göhrs <l.goehrs@xxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml b/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml
index 5b0134304e51c..452f8972a9659 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml
@@ -24,6 +24,10 @@ properties:
   '#gpio-cells':
     const: 2
 
+  gpio-line-names:
+    minItems: 4
+    maxItems: 8
+
 required:
   - compatible
   - reg
-- 
2.39.2