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drm/i915: Clear the LVDS pipe B select bit when moving the LVDS to pipe A.

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Based on a patch by Zhao Yakui.

Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Eric Anholt 2010-04-09 14:18:55 -07:00
parent 0f3ee801b3
commit d275f6614e
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/intel_display.c
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@ -3306,6 +3306,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP;
if (pipe == 1)
lvds |= LVDS_PIPEB_SELECT;
else
lvds &= ~LVDS_PIPEB_SELECT;
/* set the corresponsding LVDS_BORDER bit */
lvds |= dev_priv->lvds_border_bits;
/* Set the B0-B3 data pairs corresponding to whether we're going to