drm/radeon/kms: enable hpd support

[safe/jmp/linux-2.6] / drivers / gpu / drm / radeon / radeon_connectors.c

diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 7328d15..cfa2ebb 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -40,6 +40,26 @@ radeon_atombios_connected_scratch_regs(struct drm_connector *connector,
                                       struct drm_encoder *encoder,
                                       bool connected);
 
+void radeon_connector_hotplug(struct drm_connector *connector)
+{
+       struct drm_device *dev = connector->dev;
+       struct radeon_device *rdev = dev->dev_private;
+       struct radeon_connector *radeon_connector = to_radeon_connector(connector);
+
+       if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
+               radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
+
+       if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
+               if (radeon_dp_getsinktype(radeon_connector) == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
+                       if (radeon_dp_needs_link_train(radeon_connector)) {
+                               if (connector->encoder)
+                                       dp_link_train(connector->encoder, connector);
+                       }
+               }
+       }
+
+}
+
 static void radeon_property_change_mode(struct drm_encoder *encoder)
 {
        struct drm_crtc *crtc = encoder->crtc;