| NXP specific extensions to the Northwest Logic MIPI-DSI |
| ================================ |
| |
| Platform specific extentions for the NWL MIPI-DSI host controller found in |
| MX8 platforms. This is an encoder/bridge that manages the platform specific |
| initializations required for the NWL MIPI-DSI host. |
| |
| Required properties: |
| - compatible: "fsl,<chip>-mipi-dsi" |
| The following strings are expected: |
| "fsl,imx8qm-mipi-dsi" |
| "fsl,imx8qxp-mipi-dsi" |
| - reg: the register range of the MIPI-DSI controller |
| - interrupts: the interrupt number for this module |
| - clock, clock-names: phandles to the MIPI-DSI clocks |
| The following clocks are expected on all platforms: |
| "phy_ref" - PHY_REF clock |
| "tx_esc" - TX_ESC clock (used in escape mode) |
| "rx_esc" - RX_ESC clock (used in escape mode) |
| The following clocks are expected on i.MX8qm and i.MX8qxp: |
| "bypass" - bypass clock |
| "pixel" - pixel clock (for the pixel link) |
| - assigned-clocks: phandles to clocks that requires initial configuration |
| - assigned-clock-rates: rates of the clocks that requires initial configuration |
| The following clocks needs to have an initial configuration: |
| "tx_esc" and "rx_esc" |
| - port: input and output port nodes with endpoint definitions as |
| defined in Documentation/devicetree/bindings/graph.txt; |
| the input port should be connected to a display |
| interface and the output port should be connected to a |
| NWL MIPI-DSI host |
| - phys: phandle to the phy module representing the DPHY |
| inside MIPI-DSI IP block |
| - phy-names: should be "dphy" |
| |
| Optional properties: |
| - power-domains phandle to the power domain |
| - interrupt-parent phandle to the interrupt parent, if there is one; |
| usually, on i.MX8qm and i.MX8qxp there is an irq |
| steer handling the MIPI DSI interrupts |
| - csr phandle to the CSR register set (required on i.MX8qm |
| and i.MX8qxp for the reset functions) |
| - assigned-clock-parents phandles to parent clocks that needs to be assigned as |
| parents to clocks defined in assigned-clocks |
| - sync-pol horizontal and vertical sync polarity of the input |
| signal; can be <0> for LOW (negative) or <1> for HIGH |
| (positive) polarity; default value is <0>, when this |
| property is ommited |
| - pwr-delay delay used in enable, before enabling the clocks; this is |
| useful when the PLL needs some time to become stable; |
| this value represents milliseconds |
| |
| Example: |
| mipi_dsi1: mipi_dsi { |
| compatible = "fsl,imx8qxp-mipi-dsi"; |
| clocks = |
| <&clk IMX8QXP_MIPI0_PIXEL_CLK>, |
| <&clk IMX8QXP_MIPI0_BYPASS_CLK>, |
| <&clk IMX8QXP_CLK_DUMMY>; |
| clock-names = "pixel", "bypass", "phy_ref"; |
| power-domains = <&pd_mipi_dsi0>; |
| csr = <&mipi_dsi_csr1>; |
| phys = <&mipi_dsi_phy1>; |
| phy-names = "dphy"; |
| status = "disabled"; |
| |
| port@0 { |
| mipi_dsi1_in: endpoint { |
| remote-endpoint = <&dpu_disp0_mipi_dsi>; |
| }; |
| }; |
| |
| port@1 { |
| mipi_dsi1_out: endpoint { |
| remote-endpoint = <&mipi_dsi_bridge1_in>; |
| }; |
| }; |
| }; |