dt-bindings: msm/dp: add data-lanes and link-frequencies property

To increase the flexibility of supporting different DP main link configuration
at different platform, add both data-lanes and link-frequencies property
into endpoint so that different platform can specify its own main link
combination of both data lanes and max supported link rate.

Changes in v7:
-- split yaml out of dtsi patch
-- link-frequencies from link rate to symbol rate
-- deprecation of old data-lanes property

Changes in v8:
-- correct Bjorn mail address to kernel.org

Changes in v10:
-- add menu item to data-lanes and link-frequecnis

Changes in v11:
-- add endpoint property at port@1

Changes in v12:
-- use enum for item at data-lanes and link-frequencies

Changes in v13:
-- revised changes at port@0
-- use correct ref schemas for both port@0 and port@1
-- mark both port@0 and port@1 are required
-- add line between data-lanes and link-frequencies properties

Changes in v14:
-- add "unevaluatedProperties: false: to endpoint at port@1
-- remove unnecessary quote to $ref
-- re store "$ref: /schemas/graph.yaml#/properties/port" to port@0

Changes in v15:
-- re store desciption of port@0

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Patchwork: https://patchwork.freedesktop.org/patch/516094/
Link: https://lore.kernel.org/r/1672163103-31254-3-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

1 files changed, 24 insertions, 1 deletions

diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index a1dc3a13e1cf..3e54956e57db 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -84,6 +84,7 @@ properties:
 
   data-lanes:
     $ref: /schemas/types.yaml#/definitions/uint32-array
+    deprecated: true
     minItems: 1
     maxItems: 4
     items:
@@ -105,8 +106,28 @@ properties:
         description: Input endpoint of the controller
 
       port@1:
-        $ref: /schemas/graph.yaml#/properties/port
+        $ref: /schemas/graph.yaml#/$defs/port-base
         description: Output endpoint of the controller
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+            unevaluatedProperties: false
+            properties:
+              data-lanes:
+                minItems: 1
+                maxItems: 4
+                items:
+                  enum: [ 0, 1, 2, 3 ]
+
+              link-frequencies:
+                minItems: 1
+                maxItems: 4
+                items:
+                  enum: [ 1620000000, 2700000000, 5400000000, 8100000000 ]
+
+    required:
+      - port@0
+      - port@1
 
 required:
   - compatible
@@ -196,6 +217,8 @@ examples:
                 reg = <1>;
                 endpoint {
                     remote-endpoint = <&typec>;
+                    data-lanes = <0 1>;
+                    link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
                 };
             };
         };