Documentation/devicetree/bindings/video/exynos_dsim.txt

   1 Exynos MIPI DSI Master
   2
   3 Required properties:
   4   - compatible: value should be one of the following
   5                 "samsung,exynos3250-mipi-dsi" /* for Exynos3250/3472 SoCs */
   6                 "samsung,exynos4210-mipi-dsi" /* for Exynos4 SoCs */
   7                 "samsung,exynos4415-mipi-dsi" /* for Exynos4415 SoC */
   8                 "samsung,exynos5410-mipi-dsi" /* for Exynos5410/5420/5440 SoCs */
   9   - reg: physical base address and length of the registers set for the device
  10   - interrupts: should contain DSI interrupt
  11   - clocks: list of clock specifiers, must contain an entry for each required
  12     entry in clock-names
  13   - clock-names: should include "bus_clk"and "pll_clk" entries
  14   - phys: list of phy specifiers, must contain an entry for each required
  15     entry in phy-names
  16   - phy-names: should include "dsim" entry
  17   - vddcore-supply: MIPI DSIM Core voltage supply (e.g. 1.1V)
  18   - vddio-supply: MIPI DSIM I/O and PLL voltage supply (e.g. 1.8V)
  19   - samsung,pll-clock-frequency: specifies frequency of the "pll_clk" clock
  20   - #address-cells, #size-cells: should be set respectively to <1> and <0>
  21     according to DSI host bindings (see MIPI DSI bindings [1])
  22
  23 Optional properties:
  24   - power-domains: a phandle to DSIM power domain node
  25
  26 Child nodes:
  27   Should contain DSI peripheral nodes (see MIPI DSI bindings [1]).
  28
  29 Video interfaces:
  30   Device node can contain video interface port nodes according to [2].
  31   The following are properties specific to those nodes:
  32
  33   port node:
  34     - reg: (required) can be 0 for input RGB/I80 port or 1 for DSI port;
  35
  36   endpoint node of DSI port (reg = 1):
  37     - samsung,burst-clock-frequency: specifies DSI frequency in high-speed burst
  38       mode
  39     - samsung,esc-clock-frequency: specifies DSI frequency in escape mode
  40
  41 [1]: Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt
  42 [2]: Documentation/devicetree/bindings/media/video-interfaces.txt
  43
  44 Example:
  45
  46         dsi@11C80000 {
  47                 compatible = "samsung,exynos4210-mipi-dsi";
  48                 reg = <0x11C80000 0x10000>;
  49                 interrupts = <0 79 0>;
  50                 clocks = <&clock 286>, <&clock 143>;
  51                 clock-names = "bus_clk", "pll_clk";
  52                 phys = <&mipi_phy 1>;
  53                 phy-names = "dsim";
  54                 vddcore-supply = <&vusb_reg>;
  55                 vddio-supply = <&vmipi_reg>;
  56                 power-domains = <&pd_lcd0>;
  57                 #address-cells = <1>;
  58                 #size-cells = <0>;
  59                 samsung,pll-clock-frequency = <24000000>;
  60
  61                 panel@1 {
  62                         reg = <0>;
  63                         ...
  64                         port {
  65                                 panel_ep: endpoint {
  66                                         remote-endpoint = <&dsi_ep>;
  67                                 };
  68                         };
  69                 };
  70
  71                 ports {
  72                         #address-cells = <1>;
  73                         #size-cells = <0>;
  74
  75                         port@1 {
  76                                 dsi_ep: endpoint {
  77                                         reg = <0>;
  78                                         samsung,burst-clock-frequency = <500000000>;
  79                                         samsung,esc-clock-frequency = <20000000>;
  80                                         remote-endpoint = <&panel_ep>;
  81                                 };
  82                         };
  83                 };
  84         };