[PATCH v6 3/7] dt-bindings: display: sun4i: Add LVDS link companion property

[Maxime Ripard]

The Allwinner SoCs with two TCONs and LVDS output can use both to drive an
LVDS dual-link. Add a new property to express that link between these two
TCONs.

Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Signed-off-by: Maxime Ripard <maxime at cerno.tech>
---
 .../bindings/display/allwinner,sun4i-a10-tcon.yaml          | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml
index 3a7d5d731712..42dcb8a86433 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml
@@ -113,6 +113,12 @@ properties:
           - const: edp
           - const: lvds
 
+  link-companion:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: >
+      Phandle to the other TCON in the system used to drive a dual-link LVDS
+      output. This property shall be set in both TCON instances.
+
   ports:
     $ref: /schemas/graph.yaml#/properties/ports
 
-- 
2.33.1