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                 "samsung,exynos5433-mipi-dsi" /* for Exynos5433 SoCs */
  10   - reg: physical base address and length of the registers set for the device
  11   - interrupts: should contain DSI interrupt
  12   - clocks: list of clock specifiers, must contain an entry for each required
  13     entry in clock-names
  14   - clock-names: should include "bus_clk"and "sclk_mipi" entries
  15                  the use of "pll_clk" is deprecated
  16   - phys: list of phy specifiers, must contain an entry for each required
  17     entry in phy-names
  18   - phy-names: should include "dsim" entry
  19   - vddcore-supply: MIPI DSIM Core voltage supply (e.g. 1.1V)
  20   - vddio-supply: MIPI DSIM I/O and PLL voltage supply (e.g. 1.8V)
  21   - samsung,pll-clock-frequency: specifies frequency of the oscillator clock
  22   - #address-cells, #size-cells: should be set respectively to <1> and <0>
  23     according to DSI host bindings (see MIPI DSI bindings [1])
  24
  25 Optional properties:
  26   - power-domains: a phandle to DSIM power domain node
  27
  28 Child nodes:
  29   Should contain DSI peripheral nodes (see MIPI DSI bindings [1]).
  30
  31 Video interfaces:
  32   Device node can contain video interface port nodes according to [2].
  33   The following are properties specific to those nodes:
  34
  35   port node:
  36     - reg: (required) can be 0 for input RGB/I80 port or 1 for DSI port;
  37
  38   endpoint node of DSI port (reg = 1):
  39     - samsung,burst-clock-frequency: specifies DSI frequency in high-speed burst
  40       mode
  41     - samsung,esc-clock-frequency: specifies DSI frequency in escape mode
  42
  43 [1]: Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt
  44 [2]: Documentation/devicetree/bindings/media/video-interfaces.txt
  45
  46 Example:
  47
  48         dsi@11C80000 {
  49                 compatible = "samsung,exynos4210-mipi-dsi";
  50                 reg = <0x11C80000 0x10000>;
  51                 interrupts = <0 79 0>;
  52                 clocks = <&clock 286>, <&clock 143>;
  53                 clock-names = "bus_clk", "sclk_mipi";
  54                 phys = <&mipi_phy 1>;
  55                 phy-names = "dsim";
  56                 vddcore-supply = <&vusb_reg>;
  57                 vddio-supply = <&vmipi_reg>;
  58                 power-domains = <&pd_lcd0>;
  59                 #address-cells = <1>;
  60                 #size-cells = <0>;
  61                 samsung,pll-clock-frequency = <24000000>;
  62
  63                 panel@1 {
  64                         reg = <0>;
  65                         ...
  66                         port {
  67                                 panel_ep: endpoint {
  68                                         remote-endpoint = <&dsi_ep>;
  69                                 };
  70                         };
  71                 };
  72
  73                 ports {
  74                         #address-cells = <1>;
  75                         #size-cells = <0>;
  76
  77                         port@1 {
  78                                 dsi_ep: endpoint {
  79                                         reg = <0>;
  80                                         samsung,burst-clock-frequency = <500000000>;
  81                                         samsung,esc-clock-frequency = <20000000>;
  82                                         remote-endpoint = <&panel_ep>;
  83                                 };
  84                         };
  85                 };
  86         };