[PATCH RFC v2 2/5] dt-bindings: display: panel: ili9881c: Add data-lanes property

[Kory Maincent]

Add the data-lanes property to specify the number of DSI lanes used by the
panel. This allows configuring the panel for either two, three or four
lanes.

At the same time, extend the devicetree example with an endpoint node for
better clarity.

Signed-off-by: Kory Maincent <kory.mainc...@bootlin.com>
---

Change in v2:
- Use data-lanes property from video-interfaces.yaml
- Add endpoint description example
---
 .../bindings/display/panel/ilitek,ili9881c.yaml      | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git 
a/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml 
b/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml
index 
baf5dfe5f5ebdd92f460a78d0e56e1b45e7dd323..3a897e464178dfc8a7c70e0fafb51184c50a520b
 100644
--- a/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml
+++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml
@@ -27,6 +27,20 @@ properties:
   reg:
     maxItems: 1
 
+  port:
+    $ref: /schemas/graph.yaml#/$defs/port-base
+    unevaluatedProperties: false
+
+    properties:
+      endpoint:
+        $ref: /schemas/media/video-interfaces.yaml#
+        unevaluatedProperties: false
+
+        properties:
+          data-lanes:
+            minItems: 1
+            maxItems: 4
+
   backlight: true
   power-supply: true
   reset-gpios: true
@@ -53,6 +67,12 @@ examples:
             power-supply = <&reg_display>;
             reset-gpios = <&r_pio 0 5 GPIO_ACTIVE_LOW>; /* PL05 */
             backlight = <&pwm_bl>;
+            port {
+                panel_in: endpoint {
+                    remote-endpoint = <&dsi_out>;
+                    data-lanes = <1 2>;
+                };
+            };
         };
     };
 

-- 
2.34.1