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dt-bindings: display/bridge: ptn3460: Convert to YAML binding

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Convert the NXP PTN3460 eDP to LVDS bridge documentation to YAML.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211007075822.62411-1-angelogioacchino.delregno@collabora.com
This commit is contained in:
AngeloGioacchino Del Regno 2021-10-07 09:58:22 +02:00 committed by Sam Ravnborg
parent 6eab8224ed
commit 26bc3371e6
2 changed files with 106 additions and 39 deletions
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106
Documentation/devicetree/bindings/display/bridge/nxp,ptn3460.yaml Normal file
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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/nxp,ptn3460.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP PTN3460 eDP to LVDS bridge
maintainers:
- Sean Paul <seanpaul@chromium.org>
properties:
compatible:
const: nxp,ptn3460
reg:
description: I2C address of the bridge
maxItems: 1
edid-emulation:
$ref: "/schemas/types.yaml#/definitions/uint32"
description:
The EDID emulation entry to use
Value Resolution Description
0 1024x768 NXP Generic
1 1920x1080 NXP Generic
2 1920x1080 NXP Generic
3 1600x900 Samsung LTM200KT
4 1920x1080 Samsung LTM230HT
5 1366x768 NXP Generic
6 1600x900 ChiMei M215HGE
enum: [0, 1, 2, 3, 4, 5, 6]
powerdown-gpios:
description: GPIO connected to the PD_N signal.
maxItems: 1
reset-gpios:
description: GPIO connected to the RST_N signal.
maxItems: 1
ports:
$ref: /schemas/graph.yaml#/properties/ports
properties:
port@0:
$ref: /schemas/graph.yaml#/properties/port
description:
Video port for LVDS output
port@1:
$ref: /schemas/graph.yaml#/properties/port
description:
Video port for eDP input
required:
- port@0
- port@1
required:
- compatible
- reg
- edid-emulation
- powerdown-gpios
- reset-gpios
- ports
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
i2c1 {
#address-cells = <1>;
#size-cells = <0>;
bridge@20 {
compatible = "nxp,ptn3460";
reg = <0x20>;
edid-emulation = <5>;
powerdown-gpios = <&gpy2 5 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpx1 5 GPIO_ACTIVE_LOW>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
bridge_out: endpoint {
remote-endpoint = <&panel_in>;
};
};
port@1 {
reg = <1>;
bridge_in: endpoint {
remote-endpoint = <&dp_out>;
};
};
};
};
};
...

39
Documentation/devicetree/bindings/display/bridge/ptn3460.txt
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ptn3460 bridge bindings
Required properties:
- compatible: "nxp,ptn3460"
- reg: i2c address of the bridge
- powerdown-gpio: OF device-tree gpio specification for PD_N pin.
- reset-gpio: OF device-tree gpio specification for RST_N pin.
- edid-emulation: The EDID emulation entry to use
+-------+------------+------------------+
| Value | Resolution | Description |
| 0 | 1024x768 | NXP Generic |
| 1 | 1920x1080 | NXP Generic |
| 2 | 1920x1080 | NXP Generic |
| 3 | 1600x900 | Samsung LTM200KT |
| 4 | 1920x1080 | Samsung LTM230HT |
| 5 | 1366x768 | NXP Generic |
| 6 | 1600x900 | ChiMei M215HGE |
+-------+------------+------------------+
- video interfaces: Device node can contain video interface port
nodes for panel according to [1].
[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
Example:
lvds-bridge@20 {
compatible = "nxp,ptn3460";
reg = <0x20>;
powerdown-gpio = <&gpy2 5 1 0 0>;
reset-gpio = <&gpx1 5 1 0 0>;
edid-emulation = <5>;
ports {
port@0 {
bridge_out: endpoint {
remote-endpoint = <&panel_in>;
};
};
};
};