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

   1 Samsung LD9040 AMOLED LCD parallel RGB panel with SPI control bus
   2
   3 Required properties:
   4   - compatible: "samsung,ld9040"
   5   - reg: address of the panel on SPI bus
   6   - vdd3-supply: core voltage supply
   7   - vci-supply: voltage supply for analog circuits
   8   - reset-gpios: a GPIO spec for the reset pin
   9   - display-timings: timings for the connected panel according to [1]
  10
  11 The panel must obey rules for SPI slave device specified in document [2].
  12
  13 Optional properties:
  14   - power-on-delay: delay after turning regulators on [ms]
  15   - reset-delay: delay after reset sequence [ms]
  16   - panel-width-mm: physical panel width [mm]
  17   - panel-height-mm: physical panel height [mm]
  18
  19 The device node can contain one 'port' child node with one child
  20 'endpoint' node, according to the bindings defined in [3]. This
  21 node should describe panel's video bus.
  22
  23 [1]: Documentation/devicetree/bindings/display/display-timing.txt
  24 [2]: Documentation/devicetree/bindings/spi/spi-bus.txt
  25 [3]: Documentation/devicetree/bindings/media/video-interfaces.txt
  26
  27 Example:
  28
  29         lcd@0 {
  30                 compatible = "samsung,ld9040";
  31                 reg = <0>;
  32                 vdd3-supply = <&ldo7_reg>;
  33                 vci-supply = <&ldo17_reg>;
  34                 reset-gpios = <&gpy4 5 0>;
  35                 spi-max-frequency = <1200000>;
  36                 spi-cpol;
  37                 spi-cpha;
  38                 power-on-delay = <10>;
  39                 reset-delay = <10>;
  40                 panel-width-mm = <90>;
  41                 panel-height-mm = <154>;
  42
  43                 display-timings {
  44                         timing {
  45                                 clock-frequency = <23492370>;
  46                                 hactive = <480>;
  47                                 vactive = <800>;
  48                                 hback-porch = <16>;
  49                                 hfront-porch = <16>;
  50                                 vback-porch = <2>;
  51                                 vfront-porch = <28>;
  52                                 hsync-len = <2>;
  53                                 vsync-len = <1>;
  54                                 hsync-active = <0>;
  55                                 vsync-active = <0>;
  56                                 de-active = <0>;
  57                                 pixelclk-active = <0>;
  58                         };
  59                 };
  60
  61                 port {
  62                         lcd_ep: endpoint {
  63                                 remote-endpoint = <&fimd_dpi_ep>;
  64                         };
  65                 };
  66         };