从imx8m中获取MIPI DSI信号，设备树配置不正确的原因？

我正在尝试从我的 imx8m 中获取 MIPI DSI 信号——但是我认为我的设备树配置不正确，我需要一些帮助。
我包括来自 imx8mm.dtsi 的这些：
aips4: bus@32c00000 {
compatible = "fsl,aips-bus", "simple-bus";
reg = <0x32c00000 0x400000>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x32c00000 0x32c00000 0x400000>;

lcdif: lcdif@32e00000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,imx8mm-lcdif";
reg = <0x32e00000 0x10000>;
clocks = <&clk IMX8MM_CLK_LCDIF_PIXEL>,
<&clk IMX8MM_CLK_DISP_AXI_ROOT>,
<&clk IMX8MM_CLK_DISP_APB_ROOT>;
clock-names = "pix", "disp-axi", "disp-apb";
assigned-clocks = <&clk IMX8MM_CLK_LCDIF_PIXEL>,
  <&clk IMX8MM_CLK_DISP_AXI>,
  <&clk IMX8MM_CLK_DISP_APB>;
assigned-clock-parents = <&clk IMX8MM_VIDEO_PLL1_OUT>,
<&clk IMX8MM_SYS_PLL2_1000M>,
<&clk IMX8MM_SYS_PLL1_800M>;
assigned-clock-rate = <594000000>, <500000000>, <200000000>;
interrupts = ;
lcdif-gpr = <&dispmix_gpr>;
resets = <&lcdif_resets>;
power-domains = <&dispmix_pd>;
status = "disabled";

lcdif_disp0: port@0 {
reg = <0>;

lcdif_to_dsim: endpoint {
remote-endpoint = <&dsim_from_lcdif>;
};
};
};

mipi_dsi: mipi_dsi@32e10000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,imx8mm-mipi-dsim";
reg = <0x32e10000 0x400>;
clocks = <&clk IMX8MM_CLK_DSI_CORE>,
<&clk IMX8MM_CLK_DSI_PHY_REF>;
clock-names = "cfg", "pll-ref";
assigned-clocks = <&clk IMX8MM_CLK_DSI_CORE>,
  <&clk IMX8MM_CLK_DSI_PHY_REF>;
assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_266M>,
<&clk IMX8MM_CLK_24M>;
assigned-clock-rates = <266000000>, <12000000>;
interrupts = ;
dsi-gpr = <&dispmix_gpr>;
resets = <&mipi_dsi_resets>;
power-domains = <&mipi_pd>;
status = "disabled";

port@0 {
dsim_from_lcdif: endpoint {
remote-endpoint = <&lcdif_to_dsim>;
};
};
};
在我的设备树中，我编辑了如下属性：
&i2c4 {
#address-cells = <1>;
#size-cells = <0>;
clock-frequency = <100000>; /* 100kHz */
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c4>;
status = "okay";

lt_bridge: lt9211@2d {
compatible = "lontium,lt9211";
reg=<0x2d>;
pinctrl-0 = <&pinctrl_lt9211>;
reset-gpios = <&gpio5 10 GPIO_ACTIVE_LOW>;
/*vccio-supply = <&??>;*/
status = "okay";

ports {
#address-cells = <1>;
#size-cells = <0>;

port@0 { /*primary input*/
            reg = <0>;
            lt9211_mipi_in: endpoint {
      remote-endpoint = <&host_mipi_out>;
};
};

          /*port@2 { /
            reg = <2>;
            lt9211_mipi_out: endpoint {
              remote-endpoint = <&dsim_from_lcdif>;
            };
          };*/
};
};
};

&lcdif {
status = "okay";
};

&mipi_dsi {
status = "okay";

port@1 {
host_mipi_out: endpoint {
remote-endpoint = <<9211_mipi_in>;
/*attach-bridge; not needed ??? */
};
};
};
我已验证 i2c 总线工作正常。我能够使用“gpioset 4 10=1”激活我的 lt9211，它响应通过 i2cset 和 i2cget 发送的命令。  

我对https://www.kernel.org/doc/Documentation/devicetree/bindings/display/bridge/lontium%2Clt9211.yaml感到有点困惑，

它列出了 port0 和 port2 作为必需的属性。port2 应该是 lcdif_to_dsim 还是其他？是否向 mipi_dsi 节点添加新的数据线？

当前树输出错误：
[2.216086][drm:drm_bridge_attach]*错误*无法将桥/soc@0/bus@32c00000/mipi_dsi@32e10000连接到编码器DSI-34:-19[2.235960]imx_sec_dsim_drv 32e10000.mipi_dsi:绑定sec dsim桥失败
： -19