| Exynos MIPI DSI Master |
| |
| Required properties: |
| - compatible: value should be one of the following |
| "samsung,exynos3250-mipi-dsi" /* for Exynos3250/3472 SoCs */ |
| "samsung,exynos4210-mipi-dsi" /* for Exynos4 SoCs */ |
| "samsung,exynos4415-mipi-dsi" /* for Exynos4415 SoC */ |
| "samsung,exynos5410-mipi-dsi" /* for Exynos5410/5420/5440 SoCs */ |
| "samsung,exynos5433-mipi-dsi" /* for Exynos5433 SoCs */ |
| - reg: physical base address and length of the registers set for the device |
| - interrupts: should contain DSI interrupt |
| - clocks: list of clock specifiers, must contain an entry for each required |
| entry in clock-names |
| - clock-names: should include "bus_clk"and "sclk_mipi" entries |
| the use of "pll_clk" is deprecated |
| - phys: list of phy specifiers, must contain an entry for each required |
| entry in phy-names |
| - phy-names: should include "dsim" entry |
| - vddcore-supply: MIPI DSIM Core voltage supply (e.g. 1.1V) |
| - vddio-supply: MIPI DSIM I/O and PLL voltage supply (e.g. 1.8V) |
| - samsung,pll-clock-frequency: specifies frequency of the oscillator clock |
| - #address-cells, #size-cells: should be set respectively to <1> and <0> |
| according to DSI host bindings (see MIPI DSI bindings [1]) |
| |
| Optional properties: |
| - power-domains: a phandle to DSIM power domain node |
| |
| Child nodes: |
| Should contain DSI peripheral nodes (see MIPI DSI bindings [1]). |
| |
| Video interfaces: |
| Device node can contain video interface port nodes according to [2]. |
| The following are properties specific to those nodes: |
| |
| port node inbound: |
| - reg: (required) must be 0. |
| port node outbound: |
| - reg: (required) must be 1. |
| |
| endpoint node connected from mic node (reg = 0): |
| - remote-endpoint: specifies the endpoint in mic node. This node is required |
| for Exynos5433 mipi dsi. So mic can access to panel node |
| thoughout this dsi node. |
| endpoint node connected to panel node (reg = 1): |
| - remote-endpoint: specifies the endpoint in panel node. This node is |
| required in all kinds of exynos mipi dsi to represent |
| the connection between mipi dsi and panel. |
| - samsung,burst-clock-frequency: specifies DSI frequency in high-speed burst |
| mode |
| - samsung,esc-clock-frequency: specifies DSI frequency in escape mode |
| |
| [1]: Documentation/devicetree/bindings/display/mipi-dsi-bus.txt |
| [2]: Documentation/devicetree/bindings/media/video-interfaces.txt |
| |
| Example: |
| |
| dsi@11C80000 { |
| compatible = "samsung,exynos4210-mipi-dsi"; |
| reg = <0x11C80000 0x10000>; |
| interrupts = <0 79 0>; |
| clocks = <&clock 286>, <&clock 143>; |
| clock-names = "bus_clk", "sclk_mipi"; |
| phys = <&mipi_phy 1>; |
| phy-names = "dsim"; |
| vddcore-supply = <&vusb_reg>; |
| vddio-supply = <&vmipi_reg>; |
| power-domains = <&pd_lcd0>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| samsung,pll-clock-frequency = <24000000>; |
| |
| panel@1 { |
| reg = <0>; |
| ... |
| port { |
| panel_ep: endpoint { |
| remote-endpoint = <&dsi_ep>; |
| }; |
| }; |
| }; |
| |
| ports { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| port@0 { |
| reg = <0>; |
| decon_to_mic: endpoint { |
| remote-endpoint = <&mic_to_decon>; |
| }; |
| }; |
| |
| port@1 { |
| reg = <1>; |
| dsi_ep: endpoint { |
| reg = <0>; |
| samsung,burst-clock-frequency = <500000000>; |
| samsung,esc-clock-frequency = <20000000>; |
| remote-endpoint = <&panel_ep>; |
| }; |
| }; |
| }; |
| }; |