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drm/i915/pch: Set transcoder sync polarity for DP based on actual mode

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Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Adam Jackson 2010-07-16 14:46:30 -04:00 committed by Eric Anholt
parent cb0953d734
commit d6d952689a
1 changed files with 6 additions and 3 deletions
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9
drivers/gpu/drm/i915/intel_display.c
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@ -1998,9 +1998,12 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode)
reg = I915_READ(trans_dp_ctl);
reg &= ~TRANS_DP_PORT_SEL_MASK;
reg = TRANS_DP_OUTPUT_ENABLE |
TRANS_DP_ENH_FRAMING |
TRANS_DP_VSYNC_ACTIVE_HIGH |
TRANS_DP_HSYNC_ACTIVE_HIGH;
TRANS_DP_ENH_FRAMING;
if (crtc->mode.flags & DRM_MODE_FLAG_PHSYNC)
reg |= TRANS_DP_HSYNC_ACTIVE_HIGH;
if (crtc->mode.flags & DRM_MODE_FLAG_PVSYNC)
reg |= TRANS_DP_VSYNC_ACTIVE_HIGH;
switch (intel_trans_dp_port_sel(crtc)) {
case PCH_DP_B: