From b3b095b3b2b052f3c665b0d9e3e551fb65062db3 Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Wed, 7 Apr 2010 16:15:56 +0800 Subject: [PATCH] drm/i915: enable LVDS on Cougarpoint Fix the transcoder select bit for LVDS on CPT. Signed-off-by: Zhenyu Wang Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_display.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 716ab9e..606924e 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3492,10 +3492,17 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, lvds = I915_READ(lvds_reg); lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; - if (pipe == 1) - lvds |= LVDS_PIPEB_SELECT; - else - lvds &= ~LVDS_PIPEB_SELECT; + if (pipe == 1) { + if (HAS_PCH_CPT(dev)) + lvds |= PORT_TRANS_B_SEL_CPT; + else + lvds |= LVDS_PIPEB_SELECT; + } else { + if (HAS_PCH_CPT(dev)) + lvds &= ~PORT_TRANS_SEL_MASK; + 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 -- 2.7.4