Other Parts Discussed in Thread: SK-AM62P-LP
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部件号： AM62P
SDK 的内置 k3-am62p5-sk-microtips-mf101hie-panel.dtso 可以正常输出信号。 但是、我目前正在尝试配置单通道 LVDS、它无法正确输出信号。配置文件内容：
$ cat k3-am62p5-debix-t62p-01-td070a.dtso
/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
&{/} {
display {
compatible = "debix,td070a", "panel-simple";
/*
* Single-link LVDS configuration.
* Only OLDI TX 0 is used for single-link mode.
* OLDI TX 1 is not needed.
*/
//power-supply = <&vcc_3v3_sys>;
port {
lcd_in0: endpoint {
remote-endpoint = <&oldi0_dss0_out>;
};
};
};
};
&dss0 {
status = "okay";
};
&oldi0_dss0 {
status = "okay";
ti,oldi-io-ctrl = <&dss_oldi_io_ctrl>;
};
&oldi1_dss0 {
status = "disabled";
};
&oldi0_dss0_port0 {
oldi0_dss0_in: endpoint {
remote-endpoint = <&dss0_dpi0_out0>;
};
};
&oldi0_dss0_port1 {
oldi0_dss0_out: endpoint {
remote-endpoint = <&lcd_in0>;
};
};
&dss0_ports {
/* VP1: Output to OLDI */
port {
dss0_dpi0_out0: endpoint {
remote-endpoint = <&oldi0_dss0_in>;
};
};
};
内核启动期间有关 DSS 的信息：
[ 0.384176] /bus@f0000/dss@30200000/oldi-transmitters/oldi@0: Fixed dependency cycle(s) with /display
[ 0.402799] /bus@f0000/dss@30200000/oldi-transmitters/oldi@0: Fixed dependency cycle(s) with /display
[ 8.255110] [drm] Initialized tidss 1.0.0 for 30200000.dss on minor 0
[ 8.341380] tidss 30200000.dss: OLDI0: timeout waiting for OLDI reset done.
[ 8.417129] tidss 30200000.dss: [drm] fb0: tidssdrmfb frame buffer device
LVDS 的 clk 引脚和数据引脚没有波形输出。
我该如何进一步调试它,请?
