PP_CONTROL
pp_reg = PP_CONTROL(0);
pp_reg = PP_CONTROL(pipe);
pp_reg = PP_CONTROL(0);
u32 val = I915_READ(PP_CONTROL(pps_idx));
I915_WRITE(PP_CONTROL(pps_idx), val);
regs->pp_ctrl = PP_CONTROL(pps_idx);
pp_ctrl_reg = PP_CONTROL(pipe);
return I915_READ(PP_CONTROL(pipe)) & EDP_FORCE_VDD;
pps->powerdown_on_reset = I915_READ(PP_CONTROL(0)) & PANEL_POWER_RESET;
val = I915_READ(PP_CONTROL(0));
I915_WRITE(PP_CONTROL(0), val);
I915_WRITE(PP_CONTROL(0), I915_READ(PP_CONTROL(0)) | PANEL_POWER_ON);
I915_WRITE(PP_CONTROL(0), I915_READ(PP_CONTROL(0)) & ~PANEL_POWER_ON);