TI中文支持网前提：
SDK版本：ti-processor-sdk-linux-am437x-evm-06.03.00.106-Linux-x86-Install.bin
硬件：自制板卡+LCD显示屏+HDMI
硬件方案为RGB信号出来后分成两路信号，一路接LCD显示屏，一路接sii9022a芯片转HDMI
设备树中配置单独的LCD显示和单独的HDMI显示都是正常，现在想同时配置lcd和hdmi显示。官方437x开发板lcd和hdmi因硬件设计原因只能二选一不能同时显示。
我在设备树中配置lcd和hdmi始终不行，对于DRM驱动中链路port理解不够，求指点。查看设备树文档理解为：
DSS –> LCD
DSS –> sii9022a –>hdmi
所以设备树配置如下（但是不能正常工作），求指点我哪个地方配置错误，目前此配置只有lcd正常：
/ {model = "AM43xx";compatible = "ti,am4372","ti,am43";aliases { display0 = &lcd0;display1 = &hdmi0;};memory@80000000 {device_type = "memory";reg = <0x80000000 0x10000000>; /* 256 MB */};chosen {stdout-path = &uart0;};lcd0: display {compatible = "edp,n133hce_eaa", "panel-dpi";label = "lcd";pinctrl-names = "default";pinctrl-0 = <&lcd_pins>;backlight = <&lcd_bl>;enable-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>; port {lcd_in: endpoint {remote-endpoint = <&dpi_out>;};};};hdmi0: connector {compatible = "hdmi-connector";label = "hdmi";type = "b";
port {hdmi_connector_in: endpoint {remote-endpoint = <&sii9022_out>;};};};
};
&am43xx_pinmux {
.....
};
&i2c0 {status = "okay";pinctrl-names = "default";pinctrl-0 = <&i2c0_pins>;clock-frequency = <100000>;sii9022: sii9022@3b {#sound-dai-cells = <0>;compatible = "sil,sii9022";reg = <0x3b>;interrupt-parent = <&gpio3>;interrupts = <14 IRQ_TYPE_LEVEL_LOW>;reset-gpios = <&gpio1 24 GPIO_ACTIVE_LOW>;ports {#address-cells = <1>;#size-cells = <0>;port@0 {reg = <0>;sii9022_in: endpoint {remote-endpoint = <&hdmi_out>;};};port@1 {reg = <1>;sii9022_out: endpoint {remote-endpoint = <&hdmi_connector_in>;};};};};
};
&dss {status = "okay";pinctrl-names = "default";pinctrl-0 = <&dss_pins>;port {#address-cells = <1>;#size-cells = <0>;dpi_out: endpoint@0 {reg = <0>;remote-endpoint = <&lcd_in>;data-lines = <16>;};hdmi_out: endpoint@1 {reg = <1>;remote-endpoint = <&sii9022_in>;};};
};
Nancy Wang：
建议您去英文论坛咨询，会有资深产品线工程师给您提供帮助。
e2e.ti.com/…/processors-forum
