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8e2421e197
Different variants of the ADV7280 chip have up to three register maps. The availability of the CSI and VPP register maps depends on the chip variant. The address of the additional register maps depends on the board design and other chips on the I2C but. They may be programmed via registers in the main register map. Allow to specify the addresses of the VPP and CSI register maps in the device tree to solve I2C address conflicts on a board level. The CSI and VPP register maps are always optional to allow backwards compatibility with existing device trees which may rely on the default address. Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
285 lines
6.5 KiB
YAML
285 lines
6.5 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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$id: http://devicetree.org/schemas/media/i2c/adi,adv7180.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Analog Devices ADV7180 analog video decoder family
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maintainers:
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- Lars-Peter Clausen <lars@metafoo.de>
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description:
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The adv7180 family devices are used to capture analog video to different
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digital interfaces like MIPI CSI-2 or parallel video.
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properties:
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compatible:
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items:
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- enum:
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- adi,adv7180
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- adi,adv7180cp
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- adi,adv7180st
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- adi,adv7182
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- adi,adv7280
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- adi,adv7280-m
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- adi,adv7281
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- adi,adv7281-m
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- adi,adv7281-ma
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- adi,adv7282
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- adi,adv7282-m
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reg:
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minItems: 1
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items:
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- description: main register map
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- description: VPP or CSI register map
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- description: CSI register map
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description:
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The ADV7180 family may have up to three register maps. All chips have
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the main register map. The availability of the CSI and VPP register maps
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depends on the chip variant.
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The addresses of the CSI and VPP register maps are programmable by
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software. They depend on the board layout and other devices on the I2C
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bus and are determined by the hardware designer to avoid address
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conflicts on the I2C bus.
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reg-names:
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minItems: 1
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items:
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- const: main
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- enum: [ csi, vpp ]
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- const: csi
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powerdown-gpios:
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maxItems: 1
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reset-gpios:
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maxItems: 1
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adv,force-bt656-4:
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deprecated: true
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description:
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Indicates that the output is a BT.656-4 compatible stream.
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type: boolean
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adi,force-bt656-4:
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description:
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Indicates that the output is a BT.656-4 compatible stream.
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type: boolean
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interrupts:
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items:
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- description: The GPIO connected to the INTRQ pin.
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port:
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$ref: /schemas/graph.yaml#/$defs/port-base
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unevaluatedProperties: false
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properties:
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endpoint:
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$ref: /schemas/media/video-interfaces.yaml#
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unevaluatedProperties: false
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ports: true
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additionalProperties: false
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required:
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- compatible
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- reg
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allOf:
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- if:
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properties:
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compatible:
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enum:
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- adi,adv7180
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- adi,adv7182
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- adi,adv7280
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- adi,adv7280-m
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- adi,adv7281
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- adi,adv7281-m
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- adi,adv7281-ma
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- adi,adv7282
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- adi,adv7282-m
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then:
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required:
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- port
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- if:
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properties:
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compatible:
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contains:
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const: adi,adv7180cp
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then:
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properties:
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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@3:
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$ref: /schemas/graph.yaml#/properties/port
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description: Output port
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patternProperties:
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"^port@[0-2]$":
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$ref: /schemas/graph.yaml#/properties/port
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description: Input port
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required:
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- port@3
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required:
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- ports
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- if:
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properties:
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compatible:
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contains:
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const: adi,adv7180st
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then:
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properties:
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ports:
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$ref: /schemas/graph.yaml#/properties/ports
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properties:
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port@6:
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$ref: /schemas/graph.yaml#/properties/port
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description: Output port
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patternProperties:
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"^port@[0-5]$":
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$ref: /schemas/graph.yaml#/properties/port
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description: Input port
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required:
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- port@6
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required:
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- ports
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- if:
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properties:
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compatible:
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contains:
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enum:
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- adi,adv7180
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- adi,adv7180cp
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- adi,adv7180st
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- adi,adv7182
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then:
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properties:
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reg:
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maxItems: 1
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reg-names:
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maxItems: 1
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- if:
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properties:
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compatible:
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contains:
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enum:
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- adi,adv7281
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- adi,adv7281-m
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- adi,adv7281-ma
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then:
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properties:
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reg:
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minItems: 1
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maxItems: 2
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reg-names:
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minItems: 1
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items:
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- const: main
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- const: csi
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- if:
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properties:
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compatible:
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contains:
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enum:
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- adi,adv7280
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- adi,adv7282
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then:
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properties:
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reg:
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minItems: 1
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maxItems: 2
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reg-names:
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minItems: 1
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items:
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- const: main
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- const: vpp
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examples:
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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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composite-in@20 {
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compatible = "adi,adv7180";
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reg = <0x20>;
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port {
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adv7180: endpoint {
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bus-width = <8>;
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remote-endpoint = <&vin1ep>;
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};
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};
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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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composite-in@20 {
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compatible = "adi,adv7180cp";
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reg = <0x20>;
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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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reg = <0>;
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adv7180_in: endpoint {
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remote-endpoint = <&composite_con_in>;
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};
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};
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port@3 {
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reg = <3>;
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adv7180_out: endpoint {
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remote-endpoint = <&vin4_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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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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composite-in@20 {
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compatible = "adi,adv7280-m";
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reg = <0x20>, <0x42>, <0x44>;
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reg-names = "main", "vpp", "csi";
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port {
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adv7280_out: endpoint {
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bus-width = <8>;
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remote-endpoint = <&vin1ep>;
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};
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};
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};
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};
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