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 ("lvds-decoder"), therefore adapt the dt schema
to allow for the new compatible string.
Signed-off-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx>
---
v3->v4:
* Improved title and description according to Laurent's comments
* Reworked definition of the compatible property
v2->v3:
* Extracted conversion to lvds-codec as per Rob's comment
v1->v2:
* Converted to dt-schema as per Neil's comment
---
.../{lvds-transmitter.yaml => lvds-codec.yaml} | 54 +++++++++++++++++-----
1 file changed, 42 insertions(+), 12 deletions(-)
rename Documentation/devicetree/bindings/display/bridge/{lvds-transmitter.yaml => lvds-codec.yaml} (61%)
diff --git a/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.yaml b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
similarity index 61%
rename from Documentation/devicetree/bindings/display/bridge/lvds-transmitter.yaml
rename to Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
index 27de616..0ecc8a4 100644
--- a/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
@@ -1,17 +1,17 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: http://devicetree.org/schemas/display/bridge/lvds-transmitter.yaml#
+$id: http://devicetree.org/schemas/display/bridge/lvds-codec.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Parallel to LVDS Encoder
+title: Transparent LVDS encoders and decoders
maintainers:
- Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
description: |
- This binding supports the parallel to LVDS encoders that don't require any
- configuration.
+ This binding supports transparent LVDS encoders and 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
@@ -33,12 +33,14 @@ properties:
description: |
Must list the device specific compatible string first, followed by the
generic compatible string.
- items:
- - enum:
- - ti,ds90c185 # For the TI DS90C185 FPD-Link Serializer
- - ti,ds90c187 # For the TI DS90C187 FPD-Link Serializer
- - ti,sn75lvds83 # For the TI SN75LVDS83 FlatLink transmitter
- - const: lvds-encoder # Generic LVDS encoder compatible fallback
+ oneOf:
+ - items:
+ - enum:
+ - ti,ds90c185 # For the TI DS90C185 FPD-Link Serializer
+ - ti,ds90c187 # For the TI DS90C187 FPD-Link Serializer
+ - ti,sn75lvds83 # For the TI SN75LVDS83 FlatLink transmitter
+ - const: lvds-encoder # Generic LVDS encoder compatible fallback
+ - const: lvds-decoder # Generic LVDS decoders compatible fallback
ports:
type: object
@@ -49,12 +51,14 @@ properties:
port@0:
type: object
description: |
- Port 0 is for parallel input
+ With LVDS encoders port 0 is for parallel input
+ With LVDS decoders port 0 is for LVDS input
port@1:
type: object
description: |
- Port 1 is for LVDS output
+ With LVDS encoders port 1 is for LVDS output
+ With LVDS decoders port 1 is for parallel output
required:
- port@0
@@ -96,4 +100,30 @@ examples:
};
};
+ - |
+ lvds-decoder {
+ compatible = "lvds-decoder";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ lvds_dec_in: endpoint {
+ remote-endpoint = <&display_out_lvds>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ lvds_dec_out: endpoint {
+ remote-endpoint = <&rgb_panel_in>;
+ };
+ };
+ };
+ };
+
...
--
2.7.4
