Symbol: FB_CVT_RB_MIN_VBLANK
drivers/video/fbdev/core/fbcvt.c
143
vbi_lines = (1000 * FB_CVT_RB_MIN_VBLANK)/cvt->hperiod + 1;
drivers/video/fbdev/core/fbcvt.c
79
num -= FB_CVT_RB_MIN_VBLANK * 1000;