From 0971d87045f5052de9f16f3b1aa0dce59f59a060 Mon Sep 17 00:00:00 2001
From: Jerome Glisse <jglisse@redhat.com>
Date: Thu, 3 May 2012 19:05:40 -0400
Subject: [PATCH] drm/radeon: don't mess with hot plug detect for eDP or LVDS
 connector

It seems imac pannel doesn't like whe we change the hot plug setup
and then refuse to work. This should fix :
https://bugzilla.redhat.com/show_bug.cgi?id=726143

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
---
 drivers/gpu/drm/radeon/r600.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 4fbc590..5fd0490 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -713,6 +713,14 @@ void r600_hpd_init(struct radeon_device *rdev)
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 
+		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
+		    connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
+			/* don't try to enable HDP on eDP or LVDS help to avoid
+			 * issue such as:
+			 * https://bugzilla.redhat.com/show_bug.cgi?id=726143
+			 */
+			continue;
+		}
 		if (ASIC_IS_DCE3(rdev)) {
 			u32 tmp = DC_HPDx_CONNECTION_TIMER(0x9c4) | DC_HPDx_RX_INT_TIMER(0xfa);
 			if (ASIC_IS_DCE32(rdev))
-- 
1.7.7.6