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[linux/fpc-iii.git] / Documentation / devicetree / bindings / video / exynos_dsim.txt
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1 Exynos MIPI DSI Master
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])
23 Optional properties:
24   - power-domains: a phandle to DSIM power domain node
26 Child nodes:
27   Should contain DSI peripheral nodes (see MIPI DSI bindings [1]).
29 Video interfaces:
30   Device node can contain video interface port nodes according to [2].
31   The following are properties specific to those nodes:
33   port node:
34     - reg: (required) can be 0 for input RGB/I80 port or 1 for DSI port;
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
41 [1]: Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt
42 [2]: Documentation/devicetree/bindings/media/video-interfaces.txt
44 Example:
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>;
61                 panel@1 {
62                         reg = <0>;
63                         ...
64                         port {
65                                 panel_ep: endpoint {
66                                         remote-endpoint = <&dsi_ep>;
67                                 };
68                         };
69                 };
71                 ports {
72                         #address-cells = <1>;
73                         #size-cells = <0>;
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         };