dt-bindings: smiapp: Align documentation with current practices

- The clock-lanes property is not needed for the sensors do not support
  lane reordering. (The information possibly present in existing clock-lane
  properties is simply not used.)

- There's no need to refer to the sensor device in the DT example, thus
  remove the label.

- Rename the "camera" device node as "camera-sensor".

- Rename the endpoint label as "smiapp_ep" (was: "smiapp_1_1"). There is
  in practice only one anyway.

- Remove the remote-endpoint documentation (it is covered by
  graph.txt to which video-interfaces.txt refers to).

- Add a note on the port and endpoint nodes.

These changes make the smiapp bindings a better example.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/media/i2c/nokia,smia.txt

@@ -7,6 +7,9 @@ of that. These definitions are valid for both types of sensors.
 More detailed documentation can be found in
 Documentation/devicetree/bindings/media/video-interfaces.txt .
 
+The device node should contain a "port" node which may contain one or more
+endpoint nodes, in accordance with video interface bindings defined in
+Documentation/devicetree/bindings/media/video-interfaces.txt .
 
 Mandatory properties
 --------------------
@@ -37,9 +40,7 @@ Optional properties
 Endpoint node mandatory properties
 ----------------------------------
 
-- clock-lanes: <0>
 - data-lanes: <1..n>
-- remote-endpoint: A phandle to the bus receiver's endpoint node.
 
 
 Example
@@ -48,7 +49,7 @@ Example
 &i2c2 {
 	clock-frequency = <400000>;
 
-	smiapp_1: camera@10 {
+	camera-sensor@10 {
 		compatible = "nokia,smia";
 		reg = <0x10>;
 		reset-gpios = <&gpio3 20 0>;
@@ -58,8 +59,7 @@ Example
 		nokia,nvm-size = <512>; /* 8 * 64 */
 		link-frequencies = /bits/ 64 <199200000 210000000 499200000>;
 		port {
-			smiapp_1_1: endpoint {
-				clock-lanes = <0>;
+			smiapp_ep: endpoint {
 				data-lanes = <1 2>;
 				remote-endpoint = <&csi2a_ep>;
 			};