From 575af8ecd1943d432ede9891e1419d001fa67c5d Mon Sep 17 00:00:00 2001 From: Fabrizio Castro Date: Wed, 13 Nov 2019 15:51:27 +0000 Subject: [PATCH] dt-bindings: display: bridge: Repurpose lvds-encoder 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 Reviewed-by: Rob Herring Reviewed-by: Laurent Pinchart [narmstrong: fixed port descriptions as acked with lpinchart] Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/1573660292-10629-9-git-send-email-fabrizio.castro@bp.renesas.com --- .../{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 27de616a1973..f714fbd2814d 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 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 + For LVDS encoders, port 0 is the parallel input + For LVDS decoders, port 0 is the LVDS input port@1: type: object description: | - Port 1 is for LVDS output + For LVDS encoders, port 1 is the LVDS output + For LVDS decoders, port 1 is the 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>; + }; + }; + }; + }; + ... -- 2.11.0