From 4837813a4c091eef5c7e326b22bfabea99a99341 Mon Sep 17 00:00:00 2001
From: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Wed, 31 Oct 2012 18:12:20 -0200
Subject: drm/i915: don't set ADPA pipe select on LPT
Git-commit: 4837813a4c091eef5c7e326b22bfabea99a99341
Patch-mainline: v3.8-rc1

Those bits just don't exist on LPT. The CRT DAC, PCH transcoder and
FDI RX are always connected to DDI E.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Michal Srb <msrb@suse.com>
---
 drivers/gpu/drm/i915/intel_crt.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 5f7c414..e4fd102 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -245,7 +245,9 @@ static void intel_crt_mode_set(struct drm_encoder *encoder,
 		adpa |= ADPA_VSYNC_ACTIVE_HIGH;
 
 	/* For CPT allow 3 pipe config, for others just use A or B */
-	if (HAS_PCH_CPT(dev))
+	if (HAS_PCH_LPT(dev))
+		; /* Those bits don't exist here */
+	else if (HAS_PCH_CPT(dev))
 		adpa |= PORT_TRANS_SEL_CPT(intel_crtc->pipe);
 	else if (intel_crtc->pipe == 0)
 		adpa |= ADPA_PIPE_A_SELECT;

