Hi,
I'm working with an imx6duallite and I want to drive a 1920x1080 display with 2 LVDS channels but i came across a problem. Pictures are shown correctly on display but they have wrong colors (for example a blue bar during psplash is shown pink). It seems I'm using some wrong paramters. I read few thread where they told to active split-mode; I did it as you can see below, but it doesn't work.
my .dts has the following ldb:
&ldb {
ipu_id = <1>;
disp_id = <0>;
ext_ref = <1>;
mode = "sep0";
sec_ipu_id = <1>;
sec_disp_id = <1>;
status = "okay";
split-mode;
lvds-channel@0{
fsl,data-mapping = "spwg";
fsl,data-width = <24>;
crtc = "ipu1-di0";
status = "okay";
};
lvds-channel@1{
fsl,data-mapping = "spwg";
fsl,data-width = <24>;
crtc = "ipu1-di0";
status = "okay";
};
};
I also change the "bootargs" in u-boot to set "video" as:
video=mxcfb0:dev=ldb,LDB-19201080,if=RGB24,ldb=spl0 video=mxcfb1:off
and in the ldb.c file I add the following:
{
/* 1920x1080 @ 60 Hz */
" LDB-1920108 ",
60, //refresh
1920, //xres
1080, //yres
7073, //pixclock
55, //left_margin
55, //right_margin
4, //upper_margin
4, //lower_margin
112, //hsync_len
12, //vsync_len
FB_SYNC_CLK_LAT_FALL, // sync
FB_VMODE_NONINTERLACED,// vmode
FB_MODE_IS_DETAILED, // flag
},
my display has the following parameters:
Clock frequency = 141.4 MHz
Refresh = 60 Hz
One line scannig period (Th) = 2142 clocks
Horizontal display period (Thd) = 1920 clocks
Frame period (Tv) = 1100 lines
Vertical display period (Tvd) = 1080 lines
Could anyone tell me where is the mistake?
Thanks
