From: Jeremy Thorpe <jeremyt@chromium.org>
Date: Wed, 15 May 2013 16:00:16 +0000 (-0700)
Subject: CHROMIUM: drm/anx7808: anx7808 disconnect handling
X-Git-Url: http://git.cascardo.eti.br/?p=cascardo%2Flinux.git;a=commitdiff_plain;h=62511a7568539066439a1bdab7e575dbf6ea38ec

CHROMIUM: drm/anx7808: anx7808 disconnect handling

Currently, if the analogix dongle is disconnected during setup, the setup
function will get stuck.  Handle this by checking for polling error even during
connection process.

BUG=chrome-os-partner:19436
TEST=Plug in a MyDP dongle without connecting to any monitor, then disconnect.
Following that, plug in with connection to monitor.  See that connection is
established.

Change-Id: Ib531547b744d9bd8d07b933448fefc7af6158c4e
Signed-off-by: Jeremy Thorpe <jeremyt@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/51301
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
---

diff --git a/drivers/gpu/drm/bridge/anx7808.c b/drivers/gpu/drm/bridge/anx7808.c
index f2b08c9d4974..b71539054b75 100644
--- a/drivers/gpu/drm/bridge/anx7808.c
+++ b/drivers/gpu/drm/bridge/anx7808.c
@@ -523,12 +523,10 @@ static void anx7808_play_video(struct work_struct *work)
 		}
 
 		/* Check for failures */
-		if (state == STATE_PLAY) {
-			ret = anx7808_check_polling_err(anx7808);
-			if (ret) {
-				DRM_INFO("Polling error: %02x", ret);
-				state = STATE_INIT;
-			}
+		ret = anx7808_check_polling_err(anx7808);
+		if (ret) {
+			DRM_INFO("Polling error: %02x", ret);
+			state = STATE_INIT;
 		}
 
 		msleep(300);