Commit 98b6bd99 authored by Daniel Vetter's avatar Daniel Vetter
Browse files

drm/i915: IBX has a fixed pch pll to pch pipe mapping

This should fix breakage introduced in

commit ee7b9f93

Author: Jesse Barnes <>
Date:   Fri Apr 20 17:11:53 2012 +0100

    drm/i915: manage PCH PLLs separately from pipes

v2: Add a DRM_DEBUG_KMS message to explain why a given pll was
selected, suggested by Chris Wilson.

v3: Actually run git add.

Cc: Jesse Barnes <>
Cc: Chris Wilson <>
Reviewed-by: default avatarChris Wilson <>

Signed-Off-by: default avatarDaniel Vetter <>
parent 2da8af54
......@@ -2911,6 +2911,17 @@ static struct intel_pch_pll *intel_get_pch_pll(struct intel_crtc *intel_crtc, u3
goto prepare;
if (HAS_PCH_IBX(dev_priv->dev)) {
/* Ironlake PCH has a fixed PLL->PCH pipe mapping. */
i = intel_crtc->pipe;
pll = &dev_priv->pch_plls[i];
DRM_DEBUG_KMS("CRTC:%d using pre-allocated PCH PLL %x\n",
intel_crtc->, pll->pll_reg);
goto found;
for (i = 0; i < dev_priv->num_pch_pll; i++) {
pll = &dev_priv->pch_plls[i];
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