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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/bridge/ps8640.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MIPI DSI to eDP Video Format Converter Device Tree Bindings
maintainers:
- Nicolas Boichat <drinkcat@chromium.org>
- Enric Balletbo i Serra <enric.balletbo@collabora.com>
description: |
The PS8640 is a low power MIPI-to-eDP video format converter supporting
mobile devices with embedded panel resolutions up to 2048 x 1536. The
device accepts a single channel of MIPI DSI v1.1, with up to four lanes
plus clock, at a transmission rate up to 1.5Gbit/sec per lane. The
device outputs eDP v1.4, one or two lanes, at a link rate of up to
3.24Gbit/sec per lane.
properties:
compatible:
const: parade,ps8640
reg:
maxItems: 1
description: Base I2C address of the device.
powerdown-gpios:
maxItems: 1
description: GPIO connected to active low powerdown.
reset-gpios:
maxItems: 1
description: GPIO connected to active low reset.
vdd12-supply:
maxItems: 1
description: Regulator for 1.2V digital core power.
vdd33-supply:
maxItems: 1
description: Regulator for 3.3V digital core power.
ports:
type: object
description:
A node containing DSI input & output port nodes with endpoint
definitions as documented in
Documentation/devicetree/bindings/media/video-interfaces.txt
Documentation/devicetree/bindings/graph.txt
properties:
'#address-cells':
const: 1
'#size-cells':
const: 0
port@0:
type: object
description: |
Video port for DSI input
port@1:
type: object
description: |
Video port for eDP output (panel or connector).
required:
- port@0
additionalProperties: false
required:
- compatible
- reg
- powerdown-gpios
- reset-gpios
- vdd12-supply
- vdd33-supply
- ports
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
i2c0 {
#address-cells = <1>;
#size-cells = <0>;
ps8640: edp-bridge@18 {
compatible = "parade,ps8640";
reg = <0x18>;
powerdown-gpios = <&pio 116 GPIO_ACTIVE_LOW>;
reset-gpios = <&pio 115 GPIO_ACTIVE_LOW>;
vdd12-supply = <&ps8640_fixed_1v2>;
vdd33-supply = <&mt6397_vgp2_reg>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
ps8640_in: endpoint {
remote-endpoint = <&dsi0_out>;
};
};
port@1 {
reg = <1>;
ps8640_out: endpoint {
remote-endpoint = <&panel_in>;
};
};
};
};
};
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