Document LAN969x compatibles for SGPIO.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
---
Changes in v3:
* Pick Acked-by from Conor

 .../pinctrl/microchip,sparx5-sgpio.yaml       | 20 ++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/microchip,sparx5-sgpio.yaml b/Documentation/devicetree/bindings/pinctrl/microchip,sparx5-sgpio.yaml
index fa47732d7cef..9fbbafcdc063 100644
--- a/Documentation/devicetree/bindings/pinctrl/microchip,sparx5-sgpio.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/microchip,sparx5-sgpio.yaml
@@ -21,10 +21,15 @@ properties:
     pattern: '^gpio@[0-9a-f]+$'
 
   compatible:
-    enum:
-      - microchip,sparx5-sgpio
-      - mscc,ocelot-sgpio
-      - mscc,luton-sgpio
+    oneOf:
+      - enum:
+          - microchip,sparx5-sgpio
+          - mscc,ocelot-sgpio
+          - mscc,luton-sgpio
+      - items:
+          - enum:
+              - microchip,lan9691-sgpio
+          - const: microchip,sparx5-sgpio
 
   '#address-cells':
     const: 1
@@ -80,7 +85,12 @@ patternProperties:
     type: object
     properties:
       compatible:
-        const: microchip,sparx5-sgpio-bank
+        oneOf:
+          - items:
+              - enum:
+                  - microchip,lan9691-sgpio-bank
+              - const: microchip,sparx5-sgpio-bank
+          - const: microchip,sparx5-sgpio-bank
 
       reg:
         description: |
-- 
2.52.0