drm/i915: Check and update LVDS connector status after receiving LID notification event

Commit Message

Zhao, Yakui Dec. 2, 2009, 2:54 a.m. UTC

None

Patch

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index ca1ba42..cb97851 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -551,6 +551,7 @@  typedef struct drm_i915_private {
 	u16 orig_clock;
 	int child_dev_num;
 	struct child_device_config *child_dev;
+	struct drm_connector *int_lvds_connector;
 } drm_i915_private_t;
 
 /** driver private structure attached to each drm_gem_object */
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 02b813e..0eba2ea 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -679,7 +679,14 @@  static int intel_lid_notify(struct notifier_block *nb, unsigned long val,
 	struct drm_i915_private *dev_priv =
 		container_of(nb, struct drm_i915_private, lid_notifier);
 	struct drm_device *dev = dev_priv->dev;
+	struct drm_connector *connector = dev_priv->int_lvds_connector;
 
+	/*
+	 * check and update the status of LVDS connector after receiving
+	 * the LID nofication event.
+	 */
+	if (connector)
+		connector->status = connector->funcs->detect(connector);
 	if (!acpi_lid_open()) {
 		dev_priv->modeset_on_lid = 1;
 		return NOTIFY_OK;
@@ -1180,6 +1187,8 @@  out:
 		DRM_DEBUG_KMS("lid notifier registration failed\n");
 		dev_priv->lid_notifier.notifier_call = NULL;
 	}
+	/* keep the LVDS connector */
+	dev_priv->int_lvds_connector = connector;
 	drm_sysfs_connector_add(connector);
 	return;