drm/dp: Store drm_device in MST topology manager

struct drm_dp_mst_topology_mgr currently stores a pointer to struct dev.
Changing this to instead hold a pointer to drm_device is more useful as it
gives access to DRM structures. This also makes it consistent with other
DRM structures like drm_crtc, drm_connector etc.

Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1485301777-3465-2-git-send-email-dhinakaran.pandiyan@intel.com

drivers/gpu/drm/drm_dp_mst_topology.c

@@ -1086,7 +1086,7 @@ static void build_mst_prop_path(const struct drm_dp_mst_branch *mstb,
 }
 
 static void drm_dp_add_port(struct drm_dp_mst_branch *mstb,
-			    struct device *dev,
+			    struct drm_device *dev,
 			    struct drm_dp_link_addr_reply_port *port_msg)
 {
 	struct drm_dp_mst_port *port;
@@ -1104,7 +1104,7 @@ static void drm_dp_add_port(struct drm_dp_mst_branch *mstb,
 		port->port_num = port_msg->port_number;
 		port->mgr = mstb->mgr;
 		port->aux.name = "DPMST";
-		port->aux.dev = dev;
+		port->aux.dev = dev->dev;
 		created = true;
 	} else {
 		old_pdt = port->pdt;
@@ -2949,7 +2949,7 @@ static void drm_dp_destroy_connector_work(struct work_struct *work)
  * Return 0 for success, or negative error code on failure
  */
 int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_topology_mgr *mgr,
-				 struct device *dev, struct drm_dp_aux *aux,
+				 struct drm_device *dev, struct drm_dp_aux *aux,
 				 int max_dpcd_transaction_bytes,
 				 int max_payloads, int conn_base_id)
 {

drivers/gpu/drm/i915/intel_dp_mst.c

@@ -587,7 +587,8 @@ intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_ba
 
 	/* create encoders */
 	intel_dp_create_fake_mst_encoders(intel_dig_port);
-	ret = drm_dp_mst_topology_mgr_init(&intel_dp->mst_mgr, dev->dev, &intel_dp->aux, 16, 3, conn_base_id);
+	ret = drm_dp_mst_topology_mgr_init(&intel_dp->mst_mgr, dev,
+					   &intel_dp->aux, 16, 3, conn_base_id);
 	if (ret) {
 		intel_dp->can_mst = false;
 		return ret;

drivers/gpu/drm/nouveau/nv50_display.c

@@ -3417,7 +3417,7 @@ nv50_mstm_new(struct nouveau_encoder *outp, struct drm_dp_aux *aux, int aux_max,
 	mstm->outp = outp;
 	mstm->mgr.cbs = &nv50_mstm;
 
-	ret = drm_dp_mst_topology_mgr_init(&mstm->mgr, dev->dev, aux, aux_max,
+	ret = drm_dp_mst_topology_mgr_init(&mstm->mgr, dev, aux, aux_max,
 					   max_payloads, conn_base_id);
 	if (ret)
 		return ret;

drivers/gpu/drm/radeon/radeon_dp_mst.c

@@ -667,7 +667,7 @@ radeon_dp_mst_init(struct radeon_connector *radeon_connector)
 		return 0;
 
 	radeon_connector->mst_mgr.cbs = &mst_cbs;
-	return drm_dp_mst_topology_mgr_init(&radeon_connector->mst_mgr, dev->dev,
+	return drm_dp_mst_topology_mgr_init(&radeon_connector->mst_mgr, dev,
 					    &radeon_connector->ddc_bus->aux, 16, 6,
 					    radeon_connector->base.base.id);
 }

include/drm/drm_dp_mst_helper.h

@@ -414,7 +414,7 @@ struct drm_dp_mst_topology_mgr {
 	/**
 	 * @dev: device pointer for adding i2c devices etc.
 	 */
-	struct device *dev;
+	struct drm_device *dev;
 	/**
 	 * @cbs: callbacks for connector addition and destruction.
 	 */
@@ -556,7 +556,10 @@ struct drm_dp_mst_topology_mgr {
 	struct work_struct destroy_connector_work;
 };
 
-int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_topology_mgr *mgr, struct device *dev, struct drm_dp_aux *aux, int max_dpcd_transaction_bytes, int max_payloads, int conn_base_id);
+int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_topology_mgr *mgr,
+				 struct drm_device *dev, struct drm_dp_aux *aux,
+				 int max_dpcd_transaction_bytes,
+				 int max_payloads, int conn_base_id);
 
 void drm_dp_mst_topology_mgr_destroy(struct drm_dp_mst_topology_mgr *mgr);