1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/display/bridge/ps8640.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: MIPI DSI to eDP Video Format Converter
  8
  9maintainers:
 10  - Nicolas Boichat <drinkcat@chromium.org>
 11
 12description: |
 13  The PS8640 is a low power MIPI-to-eDP video format converter supporting
 14  mobile devices with embedded panel resolutions up to 2048 x 1536. The
 15  device accepts a single channel of MIPI DSI v1.1, with up to four lanes
 16  plus clock, at a transmission rate up to 1.5Gbit/sec per lane. The
 17  device outputs eDP v1.4, one or two lanes, at a link rate of up to
 18  3.24Gbit/sec per lane.
 19
 20properties:
 21  compatible:
 22    const: parade,ps8640
 23
 24  reg:
 25    maxItems: 1
 26    description: Base I2C address of the device.
 27
 28  powerdown-gpios:
 29    maxItems: 1
 30    description: GPIO connected to active low powerdown.
 31
 32  reset-gpios:
 33    maxItems: 1
 34    description: GPIO connected to active low reset.
 35
 36  vdd12-supply:
 37    description: Regulator for 1.2V digital core power.
 38
 39  vdd33-supply:
 40    description: Regulator for 3.3V digital core power.
 41
 42  aux-bus:
 43    $ref: /schemas/display/dp-aux-bus.yaml#
 44
 45  ports:
 46    $ref: /schemas/graph.yaml#/properties/ports
 47
 48    properties:
 49      port@0:
 50        $ref: /schemas/graph.yaml#/properties/port
 51        description:
 52          Video port for DSI input
 53
 54      port@1:
 55        $ref: /schemas/graph.yaml#/properties/port
 56        description:
 57          Video port for eDP output (panel or connector).
 58
 59    required:
 60      - port@0
 61
 62required:
 63  - compatible
 64  - reg
 65  - powerdown-gpios
 66  - reset-gpios
 67  - vdd12-supply
 68  - vdd33-supply
 69  - ports
 70
 71additionalProperties: false
 72
 73examples:
 74  - |
 75    #include <dt-bindings/gpio/gpio.h>
 76    i2c {
 77        #address-cells = <1>;
 78        #size-cells = <0>;
 79
 80        ps8640: edp-bridge@18 {
 81            compatible = "parade,ps8640";
 82            reg = <0x18>;
 83            powerdown-gpios = <&pio 116 GPIO_ACTIVE_LOW>;
 84            reset-gpios = <&pio 115 GPIO_ACTIVE_LOW>;
 85            vdd12-supply = <&ps8640_fixed_1v2>;
 86            vdd33-supply = <&mt6397_vgp2_reg>;
 87
 88            ports {
 89                #address-cells = <1>;
 90                #size-cells = <0>;
 91
 92                port@0 {
 93                    reg = <0>;
 94                    ps8640_in: endpoint {
 95                        remote-endpoint = <&dsi0_out>;
 96                    };
 97                };
 98
 99                port@1 {
100                    reg = <1>;
101                    ps8640_out: endpoint {
102                        remote-endpoint = <&panel_in>;
103                    };
104                };
105            };
106
107            aux-bus {
108                panel {
109                    compatible = "boe,nv133fhm-n62";
110                    power-supply = <&pp3300_dx_edp>;
111                    backlight = <&backlight>;
112
113                    port {
114                        panel_in: endpoint {
115                            remote-endpoint = <&ps8640_out>;
116                        };
117                    };
118                };
119            };
120        };
121    };