Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/display/panel/samsung,ld9040.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Samsung LD9040 AMOLED LCD parallel RGB panel with SPI control bus
   8
   9 maintainers:
  10   - Andrzej Hajda <a.hajda@samsung.com>
  11
  12 allOf:
  13   - $ref: panel-common.yaml#
  14   - $ref: /schemas/spi/spi-peripheral-props.yaml#
  15
  16 properties:
  17   compatible:
  18     const: samsung,ld9040
  19
  20   display-timings: true
  21   port: true
  22   reg: true
  23   reset-gpios: true
  24
  25   vdd3-supply:
  26     description: core voltage supply
  27
  28   vci-supply:
  29     description: voltage supply for analog circuits
  30
  31   power-on-delay:
  32     $ref: /schemas/types.yaml#/definitions/uint32
  33     description: delay after turning regulators on [ms]
  34
  35   reset-delay:
  36     $ref: /schemas/types.yaml#/definitions/uint32
  37     description: delay after reset sequence [ms]
  38
  39   panel-width-mm:
  40     description: physical panel width [mm]
  41
  42   panel-height-mm:
  43     description: physical panel height [mm]
  44
  45   spi-cpha: true
  46   spi-cpol: true
  47
  48 required:
  49   - compatible
  50   - reg
  51   - vdd3-supply
  52   - vci-supply
  53   - reset-gpios
  54   - display-timings
  55
  56 unevaluatedProperties: false
  57
  58 examples:
  59   - |
  60     spi {
  61         #address-cells = <1>;
  62         #size-cells = <0>;
  63
  64         lcd@0 {
  65             compatible = "samsung,ld9040";
  66
  67             reg = <0>;
  68             vdd3-supply = <&ldo7_reg>;
  69             vci-supply = <&ldo17_reg>;
  70             reset-gpios = <&gpy4 5 0>;
  71             spi-max-frequency = <1200000>;
  72             spi-cpol;
  73             spi-cpha;
  74             power-on-delay = <10>;
  75             reset-delay = <10>;
  76             panel-width-mm = <90>;
  77             panel-height-mm = <154>;
  78
  79             display-timings {
  80                 timing {
  81                     clock-frequency = <23492370>;
  82                     hactive = <480>;
  83                     vactive = <800>;
  84                     hback-porch = <16>;
  85                     hfront-porch = <16>;
  86                     vback-porch = <2>;
  87                     vfront-porch = <28>;
  88                     hsync-len = <2>;
  89                     vsync-len = <1>;
  90                     hsync-active = <0>;
  91                     vsync-active = <0>;
  92                     de-active = <0>;
  93                     pixelclk-active = <0>;
  94                 };
  95             };
  96
  97             port {
  98                 lcd_ep: endpoint {
  99                     remote-endpoint = <&fimd_dpi_ep>;
 100                 };
 101             };
 102         };
 103     };
 104
 105 ...