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drm/i915: Set PCH_NOP

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Set up PCH_NOP when we match a certain platform.

v2: Just do a num_pipes check + comment instead of trying to check the
platform (Daniel)

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky 2013-04-05 13:12:44 -07:00 committed by Daniel Vetter
parent 88a2b2a32d
commit ce1bb32979
1 changed files with 9 additions and 0 deletions
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9
drivers/gpu/drm/i915/i915_drv.c
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@ -397,6 +397,15 @@ void intel_detect_pch(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
struct pci_dev *pch;
/* In all current cases, num_pipes is equivalent to the PCH_NOP setting
* (which really amounts to a PCH but no South Display).
*/
if (INTEL_INFO(dev)->num_pipes == 0) {
dev_priv->pch_type = PCH_NOP;
dev_priv->num_pch_pll = 0;
return;
}
/*
* The reason to probe ISA bridge instead of Dev31:Fun0 is to
* make graphics device passthrough work easy for VMM, that only