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drm/i915: fixup interlaced support on ilk+

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According to Paulo Zanoni, this is what windows does.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Alfonso Fiore <alfonso.fiore@gmail.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-01-28 14:49:22 +01:00
parent 99fca60c76
commit 5def474ec6
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_display.c
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@ -5975,7 +5975,7 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
pipeconf &= ~PIPECONF_INTERLACE_MASK; pipeconf &= ~PIPECONF_INTERLACE_MASK;
if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
pipeconf |= PIPECONF_INTERLACE_W_FIELD_INDICATION; pipeconf |= PIPECONF_INTERLACED_ILK;
/* the chip adds 2 halflines automatically */ /* the chip adds 2 halflines automatically */
adjusted_mode->crtc_vtotal -= 1; adjusted_mode->crtc_vtotal -= 1;
adjusted_mode->crtc_vblank_end -= 1; adjusted_mode->crtc_vblank_end -= 1;