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drm/i915: Don't enable pipe/plane/VCO early (wait for DPMS on). 

The existing code handling the DPMS ON event is much more careful to
ensure that these registers are enabled according to strict sequencing
requirements. Enabling these early in mode_set simply defeats that.

Signed-off-by: Carl Worth <cworth@cworth.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Carl Worth 2010-04-08 23:31:57 -07:00 committed by Eric Anholt
parent ea059a1ec4
commit cfecde435d
1 changed files with 0 additions and 5 deletions
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5
drivers/gpu/drm/i915/intel_display.c
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@ -3463,11 +3463,6 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
pipeconf &= ~PIPEACONF_DOUBLE_WIDE;
}
dspcntr |= DISPLAY_PLANE_ENABLE;
pipeconf |= PIPEACONF_ENABLE;
dpll |= DPLL_VCO_ENABLE;
/* Disable the panel fitter if it was on our pipe */
if (!HAS_PCH_SPLIT(dev) && intel_panel_fitter_pipe(dev) == pipe)
I915_WRITE(PFIT_CONTROL, 0);