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-rw-r--r--drivers/gpu/drm/i915/intel_display.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index eea5982657a..2667d6de3df 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4564,6 +4564,10 @@ static void i9xx_set_pipeconf(struct intel_crtc *intel_crtc)
pipeconf = I915_READ(PIPECONF(intel_crtc->pipe));
+ if (dev_priv->quirks & QUIRK_PIPEA_FORCE &&
+ I915_READ(PIPECONF(intel_crtc->pipe)) & PIPECONF_ENABLE)
+ pipeconf |= PIPECONF_ENABLE;
+
if (intel_crtc->pipe == 0 && INTEL_INFO(dev)->gen < 4) {
/* Enable pixel doubling when the dot clock is > 90% of the (display)
* core speed.