linux-kernel - [PATCH 2/2] drm: record monitor status in output_poll

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Date:	Fri, 26 Nov 2010 10:45:59 -0800
From:	Keith Packard <keithp@...thp.com>
To:	Chris Wilson <chris@...is-wilson.co.uk>
Cc:	Dave Airlie <airlied@...hat.com>, linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
	Keith Packard <keithp@...thp.com>
Subject: [PATCH 2/2] drm: record monitor status in output_poll_execute

In order to correctly report monitor connected status changes, the
previous monitor status must be recorded in the connector->status
value instead of being discarded.

Signed-off-by: Keith Packard <keithp@...thp.com>
---
 drivers/gpu/drm/drm_crtc_helper.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 232ee93..7ca5935 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -848,7 +848,7 @@ static void output_poll_execute(struct work_struct *work)
 	struct delayed_work *delayed_work = to_delayed_work(work);
 	struct drm_device *dev = container_of(delayed_work, struct drm_device, mode_config.output_poll_work);
 	struct drm_connector *connector;
-	enum drm_connector_status old_status, status;
+	enum drm_connector_status old_status;
 	bool repoll = false, changed = false;
 
 	if (!drm_kms_helper_poll)
@@ -873,8 +873,9 @@ static void output_poll_execute(struct work_struct *work)
 		    !(connector->polled & DRM_CONNECTOR_POLL_HPD))
 			continue;
 
-		status = connector->funcs->detect(connector, false);
-		if (old_status != status)
+		connector->status = connector->funcs->detect(connector, false);
+		DRM_DEBUG_KMS("connector status updated to %d\n", connector->status);
+		if (old_status != connector->status)
 			changed = true;
 	}
 
-- 
1.7.2.3

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