IMX.8qm LVDS as tow single channle Configuration

[hhami_2040]

Hello,
My board is an Apalis IMX8 QM with an ixora 1.2 carrier board and i am using tdx-reference-multimedia-image.
I have a dual screen HDMI and LVDS (touch screen) together.

as two single-channel  

Hello
I have an an Apalis IMX8 QM module with an ixora 1.2 carrier board .

I want to connect output to 2 panels LVDS at the same time as two single-channel lvds config.

Do you know LVDS can be used as two single-channel??

My DTS config as bellow:

Spoiler

&ldb2 {
	status = "okay";

	lvds-channel@0 {
		fsl,data-mapping = "spwg";
		fsl,data-width = <24>;
		status = "okay";//okay
        reg = <0>;
            
		port@1 {
			reg = <1>;

			lvds1_out: endpoint {
				remote-endpoint = <&panel_lvds_in>;
			};
		};
	};
	
	lvds-channel@1 {
		fsl,data-mapping = "spwg";
		fsl,data-width = <24>;
		status = "okay";
		reg = <1>;
		
		port@1 {
			reg = <1>;

			lvds2_out: endpoint {
				remote-endpoint = <&panel2_lvds_in>;
			};
		};
	};
	
};

panel_lvds: panel-lvds {
compatible = "panel-lvds";
backlight = <&backlight>;

status = "okay";

port {
panel_lvds_in: endpoint {
remote-endpoint = <&lvds1_out>;
};
};
};

panel2_lvds: panel2-lvds {
compatible = "panel-lvds";
backlight = <&backlight>;

status = "okay";

port {
panel2_lvds_in: endpoint {
remote-endpoint = <&lvds2_out>;
};
};
};

Thank you in advance for your help
Best Regards,

[Zhiming_Liu]

Hi 

You can refer this patch based on MEK :

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/IMX8QM-LVDS-mirror-dual-mode-reference-p...

[hhami_2040]

Hello @Zhiming_Liu 

Thank you for answering

I saw that ago,,but i want to config lvds out as tow single channel  on it  for example ldb1 !!

the patch is for dual-mode and split-mode,no single-mode!!

I dont want to config it on tow lvds ldb1 and ldb2!!

Do you know LVDS1 can be used as two single-channel??

Can you help me,it possible config lvds out as tow single channel ??

Thank you for your help

[Zhiming_Liu]

Do you know LVDS1 can be used as two single-channel??

-->No, we don't support this.

[gohlke_tx]

well if you check our Apalis IMX8MQ datasheet page 37 you will see the possible LVDS configuration.

We have customers with 3 singel lane LVDS running at the same time.

[hhami_2040]

Hello @gohlke_tx 

Thank you very much for answering!!

Please,have a look at The LVDS Block Diagram of NXP Imx.8 :
https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/IMX8QM-LVDS-mirror-dual-mode-reference-p...
Single Mode

Single mode (LVDS panel connects to one channel) panel 1 and panel 2 can be different panels.
It seems ,There are 2 video stream to lvds out,only and we cant use 3 lvds single-lane Display!!
Can you explain more about that,how to running 3 singel lane LVDS at the same time??
Is there any sample DeviceTree or Link about that!!
Thank you for your help!!
Best regards,

[hhami_2040]

Hello @Zhiming_Liu again,,,

Thank you

I got more confused, please help,i cant understand how is it possible!!

I ask this question from Toradex forum because im using Toradex apalis imx8qm module now,

https://community.toradex.com/t/lvds-dual-mode-configuration/18484/11?u=hhami 

they said,its possible!!

But you said dont support that!!

Can you help me more!!

thank you