diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_panel.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index c65992df458..286995a9a84 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -281,3 +281,17 @@ 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) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + /* 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; + + return connector_status_unknown; +} |