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path: root/drivers/gpu/drm/i915/intel_panel.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
-rw-r--r--drivers/gpu/drm/i915/intel_panel.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index f8f86e5..a06ff07 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -280,3 +280,28 @@ void intel_panel_setup_backlight(struct drm_device *dev)
dev_priv->backlight_level = intel_panel_get_backlight(dev);
dev_priv->backlight_enabled = dev_priv->backlight_level != 0;
}
+
+enum drm_connector_status
+intel_panel_detect(struct drm_device *dev)
+{
+#if 0
+ struct drm_i915_private *dev_priv = dev->dev_private;
+#endif
+
+ if (i915_panel_ignore_lid)
+ return i915_panel_ignore_lid > 0 ?
+ connector_status_connected :
+ connector_status_disconnected;
+
+ /* opregion lid state on HP 2540p is wrong at boot up,
+ * appears to be either the BIOS or Linux ACPI fault */
+#if 0
+ /* Assume that the BIOS does not lie through the OpRegion... */
+ if (dev_priv->opregion.lid_state)
+ return ioread32(dev_priv->opregion.lid_state) & 0x1 ?
+ connector_status_connected :
+ connector_status_disconnected;
+#endif
+
+ return connector_status_unknown;
+}