Part Number: AM62P
The built-in k3-am62p5-sk-microtips-mf101hie-panel.dtso of the SDK can output signals normally. However, I am currently trying to configure a single-channel LVDS and it cannot output signals correctly.Configuration file content:
$ 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>;
};
};
};
Information about DSS during kernel startup:
[ 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
The clk pin and data pin of LVDS have no waveform output.
How can I further debug it, please ?
