PANEL_UNLOCK_REGS
((val & PANEL_UNLOCK_MASK) == PANEL_UNLOCK_REGS))
val = (val & ~PANEL_UNLOCK_MASK) | PANEL_UNLOCK_REGS;
I915_WRITE(pp_ctrl_reg, PANEL_UNLOCK_REGS | PANEL_POWER_OFF);
(control & PANEL_UNLOCK_MASK) != PANEL_UNLOCK_REGS)) {
control |= PANEL_UNLOCK_REGS;
WARN_ON((val & PANEL_UNLOCK_MASK) != PANEL_UNLOCK_REGS);