iMX93 EVK LVDS

[coilnpark]

Hi,

I am using iMX93 11x11 evk.

When I checked LVDS Clock and signals in this evk board with the offered OS image full version from NXP, LVDS clock didn't output.

Is there any setting to output LVDS?

[Nobita]

I use imx93-11x11-evk-boe-wxga-lvds-panel.dtb and the lvds panel works well, I think it's enough for you to check the clock with the same dtb file.
The imx93-11x11-evk-boe-wxga-lvds-panel dts does enable the lvds releated nodes and does disable the DSI2MIPI related nodes. I am not an expert, I am also consulting NXP's engineer about how to enable dual display with the same video output via hdmi and lvds.  

[Nobita]

Have you change your dtb file since the default dtb does not enable lvds releated nodes.

[coilnpark]

Thank  you for your reply.

I tried to change the below file.
But it didn't work.
Do I have to change more?

arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts



lvds_backlight: lvds_backlight {
              compatible = "pwm-backlight";
              pwms = <&tpm4 1 50000 0>;
              brightness-levels = <0 20 25 30 35 40 100>;
              default-brightness-level = <4>;
              status = "okay";
};

lvds_panel {
              compatible = "innolux,g121x1-l03","simple-panel";
              backlight = <&lvds_backlight>;

              port {
                          panel_lvds_in: endpoint {
                                      remote-endpoint = <&lvds_out>;
                          };
              };

};



&ldb {
              status = "okay";

              lvds-channel@0 {
                          status = "okay";

                          port@1 {
                                      reg = <1>;

                                      lvds_out: endpoint {
                                                  remote-endpoint = <&panel_lvds_in>;
                                      };
                          };
              };
};

&ldb_phy {
              status = "okay";
};