Tool/software:
I attempted to connect a MIPI display to the DSI interface exposed on the AM62L and expected it to function properly. However, the driver exits abnormally during probe, and the mipi_dsi_attach function returns an error code. From the function code, I can see that the error occurs because the ops (operations) function pointer in the DSI device structure’s host field is NULL. Could this be due to an issue in my device tree configuration causing the attach operation to fail?
&dss {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&main_dpi_pins_default>;
bootph-all;
};
&dss_ports {
port@0 {
reg = <0>;
dpi_out: endpoint {
remote-endpoint = <&panel_in>;
};
};
};
&dphy_tx0 {
status = "okay";
bootph-all;
};
&dsi0 {
status = "okay";
bootph-all;
panel@0 {
compatible = "amelin,aml070wxii4006";
reg = <0>;
vcc-lcd-supply = <&vcc_3v3_sys>;
pinctrl-names = "default";
pinctrl-0 = <&mipi_lcd_rst>;
reset-gpio = <&main_gpio0 50 GPIO_ACTIVE_LOW>;
backlight = <&mipi_dsi_backlight>;
status = "okay";
port {
panel_in: endpoint {
remote-endpoint = <&dpi_out>;
};
};
};
};And this is the edit part base on k3-am62l3-evm.dts
drm_panel_add(&ctx->panel);
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->lanes = 4;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_VIDEO_HSE | MIPI_DSI_MODE_LPM;
ret = of_property_read_u32(dsi->dev.of_node, "video-mode", &video_mode);
if (!ret) {
dsi->mode_flags = video_mode;
}
dev_info(&dsi->dev, "dsi video mode[0x%lx]\n", dsi->mode_flags);
return mipi_dsi_attach(dsi);this is the probe func where it exit,when it enter probe，it will exit from mipi_dsi_attach，is there something wrong with dsi host ？
