[PATCH v2 2/4] dt-bindings: display: bridge: Repurpose lvds-encoder

[Fabrizio Castro]

In an effort to repurpose lvds-encoder.c to also serve the
function of LVDS decoders, we ended up defining a new "generic"
compatible string, therefore adapt the dt-bindings to fit the
new purpose. Also, convert the dt-bindings from .txt to .yaml
while at it.

Signed-off-by: Fabrizio Castro <fabrizio.castro at bp.renesas.com>

---
v1->v2:
* Converted to dt-schema as per Neil's comment
---
 .../bindings/display/bridge/lvds-codec.yaml        | 117 +++++++++++++++++++++
 .../bindings/display/bridge/lvds-transmitter.txt   |  66 ------------
 2 files changed, 117 insertions(+), 66 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
 delete mode 100644 Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt

diff --git a/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
new file mode 100644
index 0000000..ff79bc2
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/lvds-codec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Trasnparent LVDS encoders and LVDS decoders
+
+maintainers:
+  - Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
+
+description: |
+  This binding supports transparent LVDS encoders and LVDS decoders that don't
+  require any configuration.
+
+  LVDS is a physical layer specification defined in ANSI/TIA/EIA-644-A. Multiple
+  incompatible data link layers have been used over time to transmit image data
+  to LVDS panels. This binding targets devices compatible with the following
+  specifications only.
+
+  [JEIDA] "Digital Interface Standards for Monitor", JEIDA-59-1999, February
+  1999 (Version 1.0), Japan Electronic Industry Development Association (JEIDA)
+  [LDI] "Open LVDS Display Interface", May 1999 (Version 0.95), National
+  Semiconductor
+  [VESA] "VESA Notebook Panel Standard", October 2007 (Version 1.0), Video
+  Electronics Standards Association (VESA)
+
+  Those devices have been marketed under the FPD-Link and FlatLink brand names
+  among others.
+
+properties:
+  compatible:
+    description: |
+      Any encoder or decoder compatible with this generic binding, but with
+      additional properties not listed here, must define its own binding and
+      list a device specific compatible first followed by the generic compatible
+    items:
+      - enum:
+        - lvds-encoder # for LVDS encoders
+        - lvds-decoder # for LVDS decoders
+
+  ports:
+    type: object
+    description: |
+      This device has two video ports. Their connections are modeled using the
+      OF graph bindings specified in Documentation/devicetree/bindings/graph.txt
+    properties:
+      port at 0:
+        type: object
+        description: |
+          With LVDS encoders port 0 is for parallel input
+          With LVDS decoders port 0 is for LVDS input
+
+      port at 1:
+        type: object
+        description: |
+          With LVDS encoders port 1 is for LVDS output
+          With LVDS decoders port 1 is for parallel output
+
+required:
+  - compatible
+  - ports
+
+examples:
+  - |
+    lvds-encoder {
+      compatible = "lvds-encoder";
+
+      ports {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        port at 0 {
+          reg = <0>;
+
+          lvds_enc_in: endpoint {
+            remote-endpoint = <&display_out_rgb>;
+          };
+        };
+
+        port at 1 {
+          reg = <1>;
+
+          lvds_enc_out: endpoint {
+            remote-endpoint = <&lvds_panel_in>;
+          };
+        };
+      };
+    };
+
+  - |
+    lvds-decoder {
+      compatible = "lvds-decoder";
+
+      ports {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        port at 0 {
+          reg = <0>;
+
+          lvds_dec_in: endpoint {
+            remote-endpoint = <&display_out_lvds>;
+          };
+        };
+
+        port at 1 {
+          reg = <1>;
+
+          lvds_dec_out: endpoint {
+            remote-endpoint = <&rgb_panel_in>;
+          };
+        };
+      };
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt b/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt
deleted file mode 100644
index 60091db..0000000
--- a/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt
+++ /dev/null
@@ -1,66 +0,0 @@
-Parallel to LVDS Encoder
-------------------------
-
-This binding supports the parallel to LVDS encoders that don't require any
-configuration.
-
-LVDS is a physical layer specification defined in ANSI/TIA/EIA-644-A. Multiple
-incompatible data link layers have been used over time to transmit image data
-to LVDS panels. This binding targets devices compatible with the following
-specifications only.
-
-[JEIDA] "Digital Interface Standards for Monitor", JEIDA-59-1999, February
-1999 (Version 1.0), Japan Electronic Industry Development Association (JEIDA)
-[LDI] "Open LVDS Display Interface", May 1999 (Version 0.95), National
-Semiconductor
-[VESA] "VESA Notebook Panel Standard", October 2007 (Version 1.0), Video
-Electronics Standards Association (VESA)
-
-Those devices have been marketed under the FPD-Link and FlatLink brand names
-among others.
-
-
-Required properties:
-
-- compatible: Must be "lvds-encoder"
-
-  Any encoder compatible with this generic binding, but with additional
-  properties not listed here, must list a device specific compatible first
-  followed by this generic compatible.
-
-Required nodes:
-
-This device has two video ports. Their connections are modeled using the OF
-graph bindings specified in Documentation/devicetree/bindings/graph.txt.
-
-- Video port 0 for parallel input
-- Video port 1 for LVDS output
-
-
-Example
--------
-
-lvds-encoder {
-	compatible = "lvds-encoder";
-
-	ports {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		port at 0 {
-			reg = <0>;
-
-			lvds_enc_in: endpoint {
-				remote-endpoint = <&display_out_rgb>;
-			};
-		};
-
-		port at 1 {
-			reg = <1>;
-
-			lvds_enc_out: endpoint {
-				remote-endpoint = <&lvds_panel_in>;
-			};
-		};
-	};
-};
-- 
2.7.4