| Message ID | 20101214121759.11b8aa3a@jbarnes-desktop (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index f74a706..129d47a 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -818,6 +818,11 @@ static bool ironlake_edp_panel_on (struct intel_dp *intel_dp) struct drm_i915_private *dev_priv = dev->dev_private; u32 pp, idle_on_mask = PP_ON | PP_SEQUENCE_STATE_ON_IDLE; + pp = I915_READ(PCH_PP_CONTROL); + pp |= PANEL_UNLOCK_REGS | POWER_TARGET_ON; + I915_WRITE(PCH_PP_CONTROL, pp); + POSTING_READ(PCH_PP_CONTROL); + if (I915_READ(PCH_PP_STATUS) & PP_ON) return true;