From: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx> Add binding for the idk-2121wr LVDS panel from Advantech. Some panel-specific documentation can be found here: https://buy.advantech.eu/Displays/Embedded-LCD-Kits-High-Brightness/model-IDK-2121WR-K2FHA2E.htm Signed-off-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> --- Hi All, This patch is part of series [1] ("Add dual-LVDS panel support to EK874), all the patches have been accepted from it except this one. I have fixed Rob's comments in this version of the patch. [1] https://patchwork.kernel.org/cover/11297589/ V7->8 * Dropped ref to lvds.yaml, since the panel a dual channel LVDS, as a result the root port is called as ports instead of port and the child node port@0 and port@1 are used for even and odd pixels, hence binding has required property as ports instead of port. v6->7 * Added reference to lvds.yaml * Changed maintainer to myself * Switched to dual license * Dropped required properties except for ports as rest are already listed in lvds.panel * Dropped Reviewed-by tag of Laurent, due to the changes made it might not be valid. v5->v6: * No change v4->v5: * No change v3->v4: * Absorbed patch "dt-bindings: display: Add bindings for LVDS bus-timings" * Big restructuring after Rob's and Laurent's comments v2->v3: * New patch .../display/panel/advantech,idk-2121wr.yaml | 122 +++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.yaml diff --git a/Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.yaml b/Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.yaml new file mode 100644 index 0000000..6b7fddc --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.yaml @@ -0,0 +1,122 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/advantech,idk-2121wr.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Advantech IDK-2121WR 21.5" Full-HD dual-LVDS panel + +maintainers: + - Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> + - Thierry Reding <thierry.reding@xxxxxxxxx> + +description: | + The IDK-2121WR from Advantech is a Full-HD dual-LVDS panel. + A dual-LVDS interface is a dual-link connection with even pixels traveling + on one link, and with odd pixels traveling on the other link. + + The panel expects odd pixels on the first port, and even pixels on the + second port, therefore the ports must be marked accordingly (with either + dual-lvds-odd-pixels or dual-lvds-even-pixels). + +properties: + compatible: + items: + - const: advantech,idk-2121wr + - {} # panel-lvds, but not listed here to avoid false select + + width-mm: + const: 476 + + height-mm: + const: 268 + + data-mapping: + const: vesa-24 + + panel-timing: true + + ports: + type: object + properties: + port@0: + type: object + description: The sink for odd pixels. + properties: + reg: + const: 0 + + dual-lvds-odd-pixels: true + + required: + - reg + - dual-lvds-odd-pixels + + port@1: + type: object + description: The sink for even pixels. + properties: + reg: + const: 1 + + dual-lvds-even-pixels: true + + required: + - reg + - dual-lvds-even-pixels + +additionalProperties: false + +required: + - compatible + - width-mm + - height-mm + - data-mapping + - panel-timing + - ports + +examples: + - |+ + panel-lvds { + compatible = "advantech,idk-2121wr", "panel-lvds"; + + width-mm = <476>; + height-mm = <268>; + + data-mapping = "vesa-24"; + + panel-timing { + clock-frequency = <148500000>; + hactive = <1920>; + vactive = <1080>; + hsync-len = <44>; + hfront-porch = <88>; + hback-porch = <148>; + vfront-porch = <4>; + vback-porch = <36>; + vsync-len = <5>; + }; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dual-lvds-odd-pixels; + panel_in0: endpoint { + remote-endpoint = <&lvds0_out>; + }; + }; + + port@1 { + reg = <1>; + dual-lvds-even-pixels; + panel_in1: endpoint { + remote-endpoint = <&lvds1_out>; + }; + }; + }; + }; + +... -- 2.7.4
