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From:   Prashant Malani <pmalani@chromium.org>
To:     linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
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        DEVICE TREE BINDINGS),
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        Xin Ji <xji@analogixsemi.com>
Subject: [PATCH 4/7] dt-bindings: drm/bridge: anx7625: Add mode-switch support
Date:   Tue,  7 Jun 2022 19:00:22 +0000
Message-Id: <20220607190131.1647511-5-pmalani@chromium.org>
In-Reply-To: <20220607190131.1647511-1-pmalani@chromium.org>
References: <20220607190131.1647511-1-pmalani@chromium.org>
MIME-Version: 1.0
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Analogix 7625 can be used in systems to switch USB Type-C DisplayPort
alternate mode lane traffic between 2 Type-C ports.

Update the binding to accommodate this usage by introducing a switch
property.

Signed-off-by: Prashant Malani <pmalani@chromium.org>
---
 .../display/bridge/analogix,anx7625.yaml      | 56 +++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
index 35a48515836e..7e1f655ddfcc 100644
--- a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
@@ -105,6 +105,26 @@ properties:
       - port@0
       - port@1
 
+  switches:
+    type: object
+    description: Set of switches controlling DisplayPort traffic on
+      outgoing RX/TX lanes to Type C ports.
+
+    properties:
+      switch:
+        $ref: /schemas/usb/typec-switch.yaml#
+        maxItems: 2
+
+        properties:
+          reg:
+            maxItems: 1
+
+        required:
+          - reg
+
+    required:
+      - switch@0
+
 required:
   - compatible
   - reg
@@ -167,5 +187,41 @@ examples:
                     };
                 };
             };
+            switches {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                switch@0 {
+                    compatible = "typec-switch";
+                    reg = <0>;
+                    mode-switch;
+
+                    ports {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        port@0 {
+                            reg = <0>;
+                            anx_typec0: endpoint {
+                              remote-endpoint = <&typec_port0>;
+                            };
+                        };
+                    };
+                };
+                switch@1 {
+                    compatible = "typec-switch";
+                    reg = <1>;
+                    mode-switch;
+
+                    ports {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        port@0 {
+                            reg = <0>;
+                            anx_typec1: endpoint {
+                              remote-endpoint = <&typec_port1>;
+                            };
+                        };
+                    };
+                };
+            };
         };
     };
-- 
2.36.1.255.ge46751e96f-goog