[PATCH v2] dt-bindings: mfd: maxim,max77693: Add USB connector

[Krzysztof Kozlowski]

Add micro-USB connector under "muic" node to properly represent the
hardware.  Deprecate also the old "max77693-muic" in favor of generic
"muic" (this is max77693, so there is no need to state it in its child
nodes).  This "muic" node is used only to instantiate MUIC driver by
compatible, thus actual Linux driver changes are needed.  Extend the
example with this new code.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>

---

Changes in v2:
1. Put connector node in the muic node (Henrik).
2. Rename max77693-muic -> muic.
3. Extend example.

DTS change using this:
https://lore.kernel.org/linux-samsung-soc/20230723142417.97734-1-krzysztof.kozlowski@xxxxxxxxxx/T/#u
---
 .../bindings/mfd/maxim,max77693.yaml          | 48 +++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/maxim,max77693.yaml b/Documentation/devicetree/bindings/mfd/maxim,max77693.yaml
index 1b06a77ec798..6a6f222b868f 100644
--- a/Documentation/devicetree/bindings/mfd/maxim,max77693.yaml
+++ b/Documentation/devicetree/bindings/mfd/maxim,max77693.yaml
@@ -37,6 +37,7 @@ properties:
   max77693-muic:
     type: object
     additionalProperties: false
+    deprecated: true
 
     properties:
       compatible:
@@ -45,6 +46,21 @@ properties:
     required:
       - compatible
 
+  muic:
+    type: object
+    additionalProperties: false
+
+    properties:
+      compatible:
+        const: maxim,max77693-muic
+
+      connector:
+        $ref: /schemas/connector/usb-connector.yaml#
+        unevaluatedProperties: false
+
+    required:
+      - compatible
+
   motor-driver:
     type: object
     additionalProperties: false
@@ -107,6 +123,38 @@ examples:
                 };
             };
 
+            muic {
+                compatible = "maxim,max77693-muic";
+
+                connector {
+                    compatible = "samsung,usb-connector-11pin",
+                                 "usb-b-connector";
+                    label = "micro-USB";
+                    type = "micro";
+
+                    ports {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+
+                        port@0 {
+                            reg = <0>;
+
+                            muic_to_usb: endpoint {
+                                remote-endpoint = <&usb_to_muic>;
+                            };
+                        };
+
+                        port@3 {
+                            reg = <3>;
+
+                            muic_to_mhl: endpoint {
+                                remote-endpoint = <&mhl_to_muic>;
+                            };
+                        };
+                    };
+                };
+            };
+
             motor-driver {
                 compatible = "maxim,max77693-haptic";
                 haptic-supply = <&ldo26_reg>;
-- 
2.34.1