Hi,
In my imx6q board, I use 2 lvds channels to support 1920X720. The dts file is modified as below:
mxcfb1: fb@0 {
compatible = "fsl,mxc_sdc_fb";
disp_dev = "ldb";
interface_pix_fmt = "RGB24";
default_bpp = <32>;
。。。
};
&ldb {
status = "okay";
split-mode;lvds-channel@0 {
fsl,data-mapping = "spwg";
fsl,data-width = <24>;
primary;
status = "okay";display-timings {
native-mode = <&timing0>;
timing0: hsd100pxn1 {
clock-frequency = <170000000>;
hactive = <1920>;
vactive = <720>;
hback-porch = <40>;
hfront-porch = <20>;
vback-porch = <40>;
vfront-porch = <20>;
hsync-len = <4>;
vsync-len = <12>;
};
};
};lvds-channel@1 {
fsl,data-mapping = "spwg";
fsl,data-width = <24>;
status = "okay";display-timings {
native-mode = <&timing1>;
timing1: hsd100pxn1 {
clock-frequency = <170000000>;
hactive = <1920>;
vactive = <720>;
hback-porch = <40>;
hfront-porch = <20>;
vback-porch = <40>;
vfront-porch = <20>;
hsync-len = <4>;
vsync-len = <12>;
};
};
};
};
And the UBoot bootargs is：
setenv mmcargs 'setenv bootargs console=${console},${baudrate} ${smp} root=${mmcroot} video=mxcfb0:dev=ldb,if=RGB32,bbp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off'
I use Yocto，and BSP version is L4.9.11。
The screen is Hannstart HSD123KPW2-D10。（datasheet is attached below.）
The wrong color(my board+lvds) and right color(MCIMX6Q-SDB+HDMI) snapshot pics are attached.
below is right color in MCIMX6Q-SDB+HDMI
