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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/display/bridge/ps8640.yaml
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# 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/display/bridge/ps8640.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: MIPI DSI to eDP Video Format Converter

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maintainers:

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  - Nicolas Boichat <drinkcat@chromium.org>

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description: |

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  The PS8640 is a low power MIPI-to-eDP video format converter supporting

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  mobile devices with embedded panel resolutions up to 2048 x 1536. The

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  device accepts a single channel of MIPI DSI v1.1, with up to four lanes

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  plus clock, at a transmission rate up to 1.5Gbit/sec per lane. The

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  device outputs eDP v1.4, one or two lanes, at a link rate of up to

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  3.24Gbit/sec per lane.

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properties:

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  compatible:

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    const: parade,ps8640

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  reg:

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    maxItems: 1

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    description: Base I2C address of the device.

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  powerdown-gpios:

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    maxItems: 1

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    description: GPIO connected to active low powerdown.

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  reset-gpios:

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    maxItems: 1

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    description: GPIO connected to active low reset.

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  vdd12-supply:

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    description: Regulator for 1.2V digital core power.

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  vdd33-supply:

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    description: Regulator for 3.3V digital core power.

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  aux-bus:

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    $ref: /schemas/display/dp-aux-bus.yaml#

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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#/properties/port

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        description:

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          Video port for DSI input

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      port@1:

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        $ref: /schemas/graph.yaml#/properties/port

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        description:

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          Video port for eDP output (panel or connector).

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    required:

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      - port@0

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required:

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  - compatible

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  - reg

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  - powerdown-gpios

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  - reset-gpios

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  - vdd12-supply

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  - vdd33-supply

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  - ports

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additionalProperties: false

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examples:

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  - |

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    #include <dt-bindings/gpio/gpio.h>

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    i2c {

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        #address-cells = <1>;

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        #size-cells = <0>;

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        ps8640: edp-bridge@18 {

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            compatible = "parade,ps8640";

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            reg = <0x18>;

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            powerdown-gpios = <&pio 116 GPIO_ACTIVE_LOW>;

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            reset-gpios = <&pio 115 GPIO_ACTIVE_LOW>;

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            vdd12-supply = <&ps8640_fixed_1v2>;

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            vdd33-supply = <&mt6397_vgp2_reg>;

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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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                    ps8640_in: endpoint {

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                        remote-endpoint = <&dsi0_out>;

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                    };

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                };

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                port@1 {

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                    reg = <1>;

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                    ps8640_out: endpoint {

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                        remote-endpoint = <&panel_in>;

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                    };

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                };

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            };

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            aux-bus {

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                panel {

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                    compatible = "boe,nv133fhm-n62";

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                    power-supply = <&pp3300_dx_edp>;

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                    backlight = <&backlight>;

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                    port {

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                        panel_in: endpoint {

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                            remote-endpoint = <&ps8640_out>;

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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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