a) dts file setting:
mxcfb3: fb@2 {
compatible = "fsl,mxc_sdc_fb";
disp_dev = "ldb";
interface_pix_fmt = "RGB24";
mode_str ="800x480M@60";
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 = "RGB24";
mode_str ="800x480M@60";
default_bpp = <16>;
int_clk = <0>;
late_init = <0>;
status = "okay";
};
&ldb {
ext-ref = "true";
status = "okay";
lvds-channel@0 {
fsl,data-mapping = "spwg";
fsl,data-width = <24>;
crtc = "ipu2-di0";
primary;
status = "okay";
display-timings {
native-mode = <&timing0>;
timing0: g070vw01v0 {
clock-frequency = <29500000>;
hactive = <800>;
vactive = <480>;
hback-porch = <96>;
hfront-porch = <24>;
vback-porch = <3>;
vfront-porch = <10>;
hsync-len = <72>;
vsync-len = <7>;
};
};
};
lvds-channel@1 {
fsl,data-mapping = "spwg";
fsl,data-width = <24>;
crtc = "ipu1-di1";
status = "okay";
display-timings {
native-mode = <&timing0>;
timing0: g070vw01v0 {
clock-frequency = <29500000>;
hactive = <800>;
vactive = <480>;
hback-porch = <96>;
hfront-porch = <24>;
vback-porch = <3>;
vfront-porch = <10>;
hsync-len = <72>;
vsync-len = <7>;
};
};
};
};
b) Console log:
1) # fbset -fb /dev/fb0
mode "800x480-59"
# D: 29.500 MHz, H: 29.738 kHz, V: 59.476 Hz
geometry 800 480 800 480 16
timings 33898 96 24 3 10 72 7
rgba 5/11,6/5,5/0,0/0
endmode
2) # cat /sys/class/graphics/fb0/mode
U:800x480p-59
I use above dts file on 3.10.53_1.1.0, LVDS resolution is correct for lvds-channel@0. But I use above dts file on 3.14.28_1.0.0, LVDS resolution is incorrect for lvds-channel@0.
Attached files are LVDS display pictures on 3.10.53_1.1.0 and 3.14.28_1.0.0.
Can you help me to solve this issue?
Thank you.
Best Regards,
Alex Cheng
