IoTGateway/BSP/Linux/iMX6/Features/Display

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Display

Name Description
96LEDK-A070WV35NB1 Panel
96LEDK-A121XG50NE1 Panel
CHIMEI INNOLUX M185BGE Panel
AUO M240HW01-VB Panel
IDK-1107WR-40WVA1E resistive touch
IDK-1115R-40XGC1E resistive touch
DK-1115P-40XGC1E capacitive touch
DK-1121WR-30FHA1E capacitive touch
IDS-3112EN-45SVA1E VGA
IDS-3112N-45SVA1E VGA & HDMI

Dual Channel LVDS Display

Calculating Timings parameter of LVDS Panel SOP

OS: Yocto 1.8

Modify imx6qdl-advantech.dtsi Step1: In ldb parameter, add parameter --> split-mode; /* dual-channel setting *

  &ldb {
       ext_ref = "true";
       status = "okay";
       split-mode; /* dual-channel setting */

Step2: In lvds-channel@1, change [crtc = "ipu1-di1";] to [crtc = "ipu1-di0";]

       lvds-channel@1 {
               fsl,data-mapping = "spwg";
               fsl,data-width = <24>;
               /* crtc = "ipu1-di1"; */
               crtc = "ipu1-di0"; /* dual-channel setting */
               status = "okay";

Step3: In display-timings native-mode = <&timing0>, Delete the other panel parameter.Add" LTI370LN01 " Parameter

        //Dual channel panel
                       timing0: lti370ln01 {
                               clock-frequency = <148500000>;
                               hactive = <1920>;
                               vactive = <544>;
                               hback-porch = <70>;
                               hfront-porch = <70>;
                               vback-porch = <200>;
                               vfront-porch = <200>;
                               hsync-len = <140>;
                               vsync-len = <185>;
                       };

Calculating Timings parameter Check your panel Timing table Example : samsung 37 inch panel

Timing lvds.png
Timing lvds2.png

(1)clock-frequency --> Clock (MHz)

(2)hactive --> Horizontal Active Display Period

(3)vactive --> Vertical Active Display Period

(4)hback-porch + hfront-porch + hsync-len (Total) = Blanking = Horizontal Total - Horizontal Active Display Period

(5)vback-porch + vfront-porch + vsync-len (Total) = Blanking = Vertical Total - Vertical Active Display Period