From 17ecf642b5c5e74343963996a94a8e123e7972a3 Mon Sep 17 00:00:00 2001
From: Alexander von Gluck IV <kallisti5@unixzen.com>
Date: Mon, 11 Jul 2016 21:48:04 -0500
Subject: [PATCH] intel_extreme: LVDS pipe only *has* to be B when gen < 4

---
 src/add-ons/accelerants/intel_extreme/Ports.cpp | 11 +++++++++++
 src/add-ons/accelerants/intel_extreme/Ports.h   |  3 +--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/add-ons/accelerants/intel_extreme/Ports.cpp b/src/add-ons/accelerants/intel_extreme/Ports.cpp
index eeae37fef8..a914e7460a 100644
--- a/src/add-ons/accelerants/intel_extreme/Ports.cpp
+++ b/src/add-ons/accelerants/intel_extreme/Ports.cpp
@@ -362,6 +362,17 @@ LVDSPort::LVDSPort()
 }
 
 
+pipe_index
+LVDSPort::PipePreference()
+{
+	// LVDS always pipe b on < gen4
+	if (gInfo->shared_info->device_type.Generation() < 4)
+		return INTEL_PIPE_B;
+
+	return INTEL_PIPE_ANY;
+}
+
+
 bool
 LVDSPort::IsConnected()
 {
diff --git a/src/add-ons/accelerants/intel_extreme/Ports.h b/src/add-ons/accelerants/intel_extreme/Ports.h
index 3895682e90..b42b0e4fd2 100644
--- a/src/add-ons/accelerants/intel_extreme/Ports.h
+++ b/src/add-ons/accelerants/intel_extreme/Ports.h
@@ -128,8 +128,7 @@ virtual	bool						IsConnected();
 virtual status_t					SetDisplayMode(display_mode* mode,
 										uint32 colorMode);
 
-virtual pipe_index					PipePreference()
-										{ return INTEL_PIPE_B; };
+virtual pipe_index					PipePreference();
 
 protected:
 virtual	addr_t						_DDCRegister();