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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
parentInitial commit. (diff)
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Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+# 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: Transparent LVDS encoders and decoders
+
+maintainers:
+ - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
+
+description: |
+ 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
+ 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:
+ 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
+ - items:
+ - enum:
+ - ti,ds90cf364a # For the DS90CF364A FPD-Link LVDS Receiver
+ - ti,ds90cf384a # For the DS90CF384A FPD-Link LVDS Receiver
+ - const: lvds-decoder # Generic LVDS decoders compatible fallback
+ - enum:
+ - thine,thc63lvdm83d # For the THC63LVDM83D LVDS serializer
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: |
+ For LVDS encoders, port 0 is the parallel input
+ For LVDS decoders, port 0 is the LVDS input
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ data-mapping:
+ enum:
+ - jeida-18
+ - jeida-24
+ - vesa-24
+ description: |
+ The color signals mapping order. See details in
+ Documentation/devicetree/bindings/display/lvds.yaml
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: |
+ For LVDS encoders, port 1 is the LVDS output
+ For LVDS decoders, port 1 is the parallel output
+
+ required:
+ - port@0
+ - port@1
+
+ pclk-sample:
+ description:
+ Data sampling on rising or falling edge.
+ enum:
+ - 0 # Falling edge
+ - 1 # Rising edge
+ default: 0
+
+ powerdown-gpios:
+ description:
+ The GPIO used to control the power down line of this device.
+ maxItems: 1
+
+ power-supply: true
+
+allOf:
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ const: lvds-decoder
+ then:
+ properties:
+ ports:
+ properties:
+ port@0:
+ properties:
+ endpoint:
+ properties:
+ data-mapping: false
+
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ const: lvds-encoder
+ then:
+ properties:
+ pclk-sample: false
+
+required:
+ - compatible
+ - ports
+
+additionalProperties: false
+
+
+examples:
+ - |
+ lvds-encoder {
+ compatible = "ti,ds90c185", "lvds-encoder";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ lvds_enc_in: endpoint {
+ remote-endpoint = <&display_out_rgb>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ lvds_enc_out: endpoint {
+ remote-endpoint = <&lvds_panel_in>;
+ };
+ };
+ };
+ };
+
+ - |
+ lvds-decoder {
+ compatible = "ti,ds90cf384a", "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>;
+ };
+ };
+ };
+ };
+
+...