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 "sclk_mipi" entries
  14                  the use of "pll_clk" is deprecated
  15   - phys: list of phy specifiers, must contain an entry for each required
  16     entry in phy-names
  17   - phy-names: should include "dsim" entry
  18   - vddcore-supply: MIPI DSIM Core voltage supply (e.g. 1.1V)
  19   - vddio-supply: MIPI DSIM I/O and PLL voltage supply (e.g. 1.8V)
  20   - samsung,pll-clock-frequency: specifies frequency of the oscillator clock
  21   - #address-cells, #size-cells: should be set respectively to <1> and <0>
  22     according to DSI host bindings (see MIPI DSI bindings [1])
  23
  24 Optional properties:
  25   - power-domains: a phandle to DSIM power domain node
  26
  27 Child nodes:
  28   Should contain DSI peripheral nodes (see MIPI DSI bindings [1]).
  29
  30 Video interfaces:
  31   Device node can contain video interface port nodes according to [2].
  32   The following are properties specific to those nodes:
  33
  34   port node:
  35     - reg: (required) can be 0 for input RGB/I80 port or 1 for DSI port;
  36
  37   endpoint node of DSI port (reg = 1):
  38     - samsung,burst-clock-frequency: specifies DSI frequency in high-speed burst
  39       mode
  40     - samsung,esc-clock-frequency: specifies DSI frequency in escape mode
  41
  42 [1]: Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt
  43 [2]: Documentation/devicetree/bindings/media/video-interfaces.txt
  44
  45 Example:
  46
  47         dsi@11C80000 {
  48                 compatible = "samsung,exynos4210-mipi-dsi";
  49                 reg = <0x11C80000 0x10000>;
  50                 interrupts = <0 79 0>;
  51                 clocks = <&clock 286>, <&clock 143>;
  52                 clock-names = "bus_clk", "sclk_mipi";
  53                 phys = <&mipi_phy 1>;
  54                 phy-names = "dsim";
  55                 vddcore-supply = <&vusb_reg>;
  56                 vddio-supply = <&vmipi_reg>;
  57                 power-domains = <&pd_lcd0>;
  58                 #address-cells = <1>;
  59                 #size-cells = <0>;
  60                 samsung,pll-clock-frequency = <24000000>;
  61
  62                 panel@1 {
  63                         reg = <0>;
  64                         ...
  65                         port {
  66                                 panel_ep: endpoint {
  67                                         remote-endpoint = <&dsi_ep>;
  68                                 };
  69                         };
  70                 };
  71
  72                 ports {
  73                         #address-cells = <1>;
  74                         #size-cells = <0>;
  75
  76                         port@1 {
  77                                 dsi_ep: endpoint {
  78                                         reg = <0>;
  79                                         samsung,burst-clock-frequency = <500000000>;
  80                                         samsung,esc-clock-frequency = <20000000>;
  81                                         remote-endpoint = <&panel_ep>;
  82                                 };
  83                         };
  84                 };
  85         };