CONTROL_PIXCLOCK_BASE
if (clk > (CONTROL_PIXCLOCK_BASE << 3))
p2 = ((clk << 4) < CONTROL_PIXCLOCK_BASE)? 3: 2;
m = CONTROL_PIXCLOCK_BASE * k;
var->pixclock = CONTROL_PIXCLOCK_BASE * par->regvals.clock_params[0];