138 lines
3.2 KiB
YAML
138 lines
3.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/media/i2c/techwell,tw9900.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Techwell TW9900 NTSC/PAL video decoder
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maintainers:
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- Mehdi Djait <mehdi.djait@bootlin.com>
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description:
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The tw9900 is a multi-standard video decoder, supporting NTSC, PAL standards
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with auto-detection features.
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properties:
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compatible:
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const: techwell,tw9900
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reg:
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maxItems: 1
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vdd-supply:
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description: VDD power supply
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reset-gpios:
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description: GPIO descriptor for the RESET input pin
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maxItems: 1
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powerdown-gpios:
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description: GPIO descriptor for the POWERDOWN input pin
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maxItems: 1
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ports:
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$ref: /schemas/graph.yaml#/properties/ports
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properties:
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port@0:
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$ref: /schemas/graph.yaml#/$defs/port-base
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description: Analog input port
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properties:
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endpoint@0:
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$ref: /schemas/graph.yaml#/properties/endpoint
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description: CVBS over MUX0
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endpoint@1:
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$ref: /schemas/graph.yaml#/properties/endpoint
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description: CVBS over MUX1
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endpoint@2:
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$ref: /schemas/graph.yaml#/properties/endpoint
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description: Chroma over CIN0 and Y over MUX0
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endpoint@3:
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$ref: /schemas/graph.yaml#/properties/endpoint
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description: Chroma over CIN0 and Y over MUX1
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oneOf:
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- required:
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- endpoint@0
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- required:
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- endpoint@1
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- required:
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- endpoint@2
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- required:
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- endpoint@3
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port@1:
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$ref: /schemas/graph.yaml#/properties/port
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description: Video port for the decoder output.
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required:
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- port@0
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- port@1
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required:
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- compatible
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- ports
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- reg
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- vdd-supply
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/display/sdtv-standards.h>
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#include <dt-bindings/gpio/gpio.h>
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composite_connector {
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compatible = "composite-video-connector";
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label = "tv";
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sdtv-standards = <(SDTV_STD_PAL | SDTV_STD_NTSC)>;
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port {
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composite_to_tw9900: endpoint {
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remote-endpoint = <&tw9900_to_composite>;
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};
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};
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};
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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video-decoder@44 {
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compatible = "techwell,tw9900";
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reg = <0x44>;
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vdd-supply = <&tw9900_supply>;
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reset-gpios = <&gpio2 5 GPIO_ACTIVE_LOW>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0>;
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tw9900_to_composite: endpoint@0 {
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reg = <0>;
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remote-endpoint = <&composite_to_tw9900>;
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};
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};
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port@1 {
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reg = <1>;
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endpoint {
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remote-endpoint = <&cif_in>;
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};
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};
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};
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};
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};
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