Hi,
I am working on the imx6q sabrelite board, and want to light a dual channel LVDS panel with mode 1280x1024@60 .
Are there any instructions on how to add a new LVDS panel support on it?
I checked file 'linux-3.0.35/drivers/video/mxc/ldb.c', and found there are only three modes in the LVDS mode table ldb_modedb.
So I added a new mode to this table:
static struct fb_videomode ldb_modedb[] = {
{
"LDB-WXGA", 60, 1280, 800, 14065,
40, 40,
10, 3,
80, 10,
0,
FB_VMODE_NONINTERLACED,
FB_MODE_IS_DETAILED,},
{
"LDB-XGA", 60, 1024, 768, 15385,
220, 40,
21, 7,
60, 10,
0,
FB_VMODE_NONINTERLACED,
FB_MODE_IS_DETAILED,},
{
"LDB-1080P60", 60, 1920, 1080, 7692,
100, 40,
30, 3,
10, 2,
0,
FB_VMODE_NONINTERLACED,
FB_MODE_IS_DETAILED,},
{
"LDB-SXGA", 60, 1280, 1024, KHZ2PICOS(108000),
248, 48,
38, 1,
112, 3,
0,
FB_VMODE_NONINTERLACED,
FB_MODE_IS_DETAILED,},
};
After compile the new kernel, I set the Uboot with the following configurations:
bootargs_sd=setenv bootargs ${bootargs} root=/dev/mmcblk1p1 rootwait rw ${lvds} console=tty1,115200
lvds=video=mxcfb0:dev=ldb,LDB-SXGA,if=RGB666 ldb=spl0
Then system start up, the LVDS panel failed, but with the dmesg command, I am sure we have set the timing '1028x1024@60' to the corresponding DI.
So maybe I missed some steps, so would anyone can kindly give some suggestions? Thanks in advance!
