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path: root/drivers/gpu/drm/i915/intel_display.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
-rw-r--r--drivers/gpu/drm/i915/intel_display.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index d9b7092439ef..fca523288aca 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5379,6 +5379,23 @@ static int intel_encoder_clones(struct drm_device *dev, int type_mask)
return index_mask;
}
+static bool has_edp_a(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ if (!IS_MOBILE(dev))
+ return false;
+
+ if ((I915_READ(DP_A) & DP_DETECTED) == 0)
+ return false;
+
+ if (IS_GEN5(dev) &&
+ (I915_READ(ILK_DISPLAY_CHICKEN_FUSES) & ILK_eDP_A_DISABLE))
+ return false;
+
+ return true;
+}
+
static void intel_setup_outputs(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -5396,7 +5413,7 @@ static void intel_setup_outputs(struct drm_device *dev)
if (HAS_PCH_SPLIT(dev)) {
dpd_is_edp = intel_dpd_is_edp(dev);
- if (IS_MOBILE(dev) && (I915_READ(DP_A) & DP_DETECTED))
+ if (has_edp_a(dev))
intel_dp_init(dev, DP_A);
if (dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED))
@@ -5825,6 +5842,8 @@ void intel_init_clock_gating(struct drm_device *dev)
I915_WRITE(PCH_3DCGDIS0,
MARIUNIT_CLOCK_GATE_DISABLE |
SVSMUNIT_CLOCK_GATE_DISABLE);
+ I915_WRITE(PCH_3DCGDIS1,
+ VFMUNIT_CLOCK_GATE_DISABLE);
}
I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate);