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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/media/ti,da850-vpif.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments DA850/AM18x Video Port Interface (VPIF)
maintainers:
- Lad, Prabhakar <prabhakar.csengg@gmail.com>
description:
The Video Port Interface (VPIF) is the primary component for video capture
and display on the DA850/AM18x family of TI DaVinci/Sitara SoCs.
TI Document reference:- SPRUH82C, Chapter 35
https://www.ti.com/lit/pdf/spruh82
properties:
compatible:
const: ti,da850-vpif
reg:
maxItems: 1
interrupts:
maxItems: 1
power-domains:
maxItems: 1
'#address-cells':
const: 1
'#size-cells':
const: 0
port:
$ref: /schemas/graph.yaml#/$defs/port-base
unevaluatedProperties: false
description:
VPIF port when the bus is configured as a single 16-bit input
properties:
endpoint:
$ref: video-interfaces.yaml#
unevaluatedProperties: false
properties:
bus-width:
enum: [8, 16]
patternProperties:
^port@[0-1]$:
$ref: /schemas/graph.yaml#/$defs/port-base
unevaluatedProperties: false
description:
VPIF has a 16-bit parallel bus input, supporting 2 8-bit channels or a
single 16-bit channel. It should contain one or two port child nodes
with child 'endpoint' node. If there are two ports then port@0 must
describe the input and port@1 output channels.
properties:
endpoint:
$ref: video-interfaces.yaml#
unevaluatedProperties: false
properties:
bus-width:
enum: [8, 16]
endpoint@0:
$ref: video-interfaces.yaml#
unevaluatedProperties: false
description:
First 8-bit channel using the lower data lines [7:0].
properties:
bus-width:
const: 8
data-shift:
const: 0
endpoint@1:
$ref: video-interfaces.yaml#
unevaluatedProperties: false
description:
Second 8-bit channel using the upper data lines [15:8].
properties:
bus-width:
const: 8
data-shift:
const: 8
anyOf:
- properties:
endpoint@0: false
endpoint@1: false
- properties:
endpoint: false
required:
- compatible
- reg
- interrupts
oneOf:
- properties:
port@0: false
port@1: false
- properties:
port: false
additionalProperties: false
examples:
- |
vpif@217000 {
compatible = "ti,da850-vpif";
reg = <0x217000 0x1000>;
interrupts = <92>;
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
vpif_input_ch0: endpoint@0 {
reg = <0>;
bus-width = <8>;
remote-endpoint = <&composite_in>;
};
vpif_input_ch1: endpoint@1 {
reg = <1>;
bus-width = <8>;
data-shift = <8>;
};
};
port@1 {
reg = <1>;
vpif_output_ch0: endpoint {
bus-width = <8>;
remote-endpoint = <&composite_out>;
};
};
};
- |
vpif@217000 {
compatible = "ti,da850-vpif";
reg = <0x217000 0x1000>;
interrupts = <92>;
port {
vpif_ch0: endpoint {
bus-width = <16>;
};
};
};
|
