Hi,all
I'm using a imx6dl custom board with RGB parallel lcd. The lcd can work correctly on kernel 4.1.15, u-boot bootargs like this:
console=tty1 console=ttymxc0,115200 root=/dev/mmcblk1p2 rw video=mxcfb0:dev=lcd,CLAA-WVGA,if=RGB565
CLAA-WVGA display setting could be found in mxc_lcdif.c:
"CLAA-WVGA", 57, 800, 480, 37037, 40, 60, 10, 10, 20, 10,
But when i try linux5.4.3_1.0.0_2.0.0, LCD display nothing：(Backlight OK)
dmesg | grep fb
[ 0.405838] mxc_sdc_fb fb@0: NO mxc display driver found!
[ 0.405934] mxc_sdc_fb fb@1: NO mxc display driver found!
[ 0.406015] mxc_sdc_fb fb@2: NO mxc display driver found!
And i can't find CLAA-WVGA display setting, there is no mxc_lcdif.c in 5.4.3, how it decided the lcd's infomation?
Kindly help , thanks .
Qiu
below settings in dtsi file:
mxcfb1: fb@0 {
compatible = "fsl,mxc_sdc_fb";
disp_dev = "lcd";
interface_pix_fmt = "RGB666";
mode_str ="CLAA-WVGA";
default_bpp = <16>;
int_clk = <0>;
late_init = <0>;
status = "okay";
};
mxcfb2: fb@1 {
compatible = "fsl,mxc_sdc_fb";
disp_dev = "hdmi";
interface_pix_fmt = "RGB24";
mode_str ="1920x1080M@60";
default_bpp = <24>;
int_clk = <0>;
late_init = <0>;
status = "okay";
};
mxcfb3: fb@2 {
compatible = "fsl,mxc_sdc_fb";
disp_dev = "ldb";
interface_pix_fmt = "RGB666";
default_bpp = <16>;
int_clk = <0>;
late_init = <0>;
status = "okay";
};
mxcfb4: fb@3 {
compatible = "fsl,mxc_sdc_fb";
disp_dev = "ldb";
interface_pix_fmt = "RGB666";
default_bpp = <16>;
int_clk = <0>;
late_init = <0>;
status = "disabled";
};
lcd@0 {
compatible = "fsl,lcd";
ipu_id = <0>;
disp_id = <0>;
default_ifmt = "RGB565";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ipu1>;
status = "okay"
};
