[1/1] dt-bindings: smiapp: Align documentation with current practices
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Message ID 20190813134518.5640-1-sakari.ailus@linux.intel.com
State Needs Review / ACK
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  • [1/1] dt-bindings: smiapp: Align documentation with current practices
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Sakari Ailus Aug. 13, 2019, 1:45 p.m. UTC
- 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>
---
 .../devicetree/bindings/media/i2c/nokia,smia.txt       | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

Patch
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diff --git a/Documentation/devicetree/bindings/media/i2c/nokia,smia.txt b/Documentation/devicetree/bindings/media/i2c/nokia,smia.txt
index 8ee7c7972ac79..c3c3479233c4a 100644
--- a/Documentation/devicetree/bindings/media/i2c/nokia,smia.txt
+++ b/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>;
 			};