drm/gma500: Add generic encoder functions

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
diff --git a/drivers/gpu/drm/gma500/psb_intel_drv.h b/drivers/gpu/drm/gma500/psb_intel_drv.h
index c8cd9be..39f09e0 100644
--- a/drivers/gpu/drm/gma500/psb_intel_drv.h
+++ b/drivers/gpu/drm/gma500/psb_intel_drv.h
@@ -230,12 +230,22 @@
 extern void psb_intel_encoder_commit(struct drm_encoder *encoder);
 extern void psb_intel_encoder_destroy(struct drm_encoder *encoder);
 
+extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
+extern void gma_connector_attach_encoder(struct psb_intel_connector *connector,
+					 struct psb_intel_encoder *encoder);
+
 static inline struct psb_intel_encoder *psb_intel_attached_encoder(
 						struct drm_connector *connector)
 {
 	return to_psb_intel_connector(connector)->encoder;
 }
 
+static inline struct psb_intel_encoder *gma_attached_encoder(
+						struct drm_connector *connector)
+{
+	return to_psb_intel_connector(connector)->encoder;
+}
+
 extern void psb_intel_connector_attach_encoder(
 					struct psb_intel_connector *connector,
 					struct psb_intel_encoder *encoder);