diff --git a/drivers/gpu/drm/mgag200/mgag200_bmc.c b/drivers/gpu/drm/mgag200/mgag200_bmc.c
index 2ba2e3c5086a..23ef85aa7e37 100644
--- a/drivers/gpu/drm/mgag200/mgag200_bmc.c
+++ b/drivers/gpu/drm/mgag200/mgag200_bmc.c
@@ -2,8 +2,18 @@
 
 #include <linux/delay.h>
 
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_managed.h>
+#include <drm/drm_probe_helper.h>
+
 #include "mgag200_drv.h"
 
+static struct mgag200_bmc_connector *to_mgag200_bmc_connector(struct drm_connector *connector)
+{
+	return container_of(connector, struct mgag200_bmc_connector, base);
+}
+
 void mgag200_bmc_disable_vidrst(struct mga_device *mdev)
 {
 	u8 tmp;
@@ -97,3 +107,100 @@ void mgag200_bmc_enable_vidrst(struct mga_device *mdev)
 	tmp &= ~0x10;
 	WREG_DAC(MGA1064_GEN_IO_DATA, tmp);
 }
+
+static const struct drm_encoder_funcs mgag200_bmc_encoder_funcs = {
+	.destroy = drm_encoder_cleanup,
+};
+
+static int mgag200_bmc_connector_helper_detect_ctx(struct drm_connector *connector,
+						   struct drm_modeset_acquire_ctx *ctx,
+						   bool force)
+{
+	struct mgag200_bmc_connector *bmc_connector = to_mgag200_bmc_connector(connector);
+	struct drm_connector *physical_connector = bmc_connector->physical_connector;
+
+	/*
+	 * Most user-space compositors cannot handle more than one connected
+	 * connector per CRTC. Hence, we only mark the BMC as connected if the
+	 * physical connector is disconnected. If the physical connector's status
+	 * is connected or unknown, the BMC remains disconnected. This has no
+	 * effect on the output of the BMC.
+	 *
+	 * FIXME: Remove this logic once user-space compositors can handle more
+	 *        than one connector per CRTC. The BMC should always be connected.
+	 */
+
+	if (physical_connector && physical_connector->status == connector_status_disconnected)
+		return connector_status_connected;
+
+	return connector_status_disconnected;
+}
+
+static int mgag200_bmc_connector_helper_get_modes(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	struct mga_device *mdev = to_mga_device(dev);
+	const struct mgag200_device_info *minfo = mdev->info;
+
+	return drm_add_modes_noedid(connector, minfo->max_hdisplay, minfo->max_vdisplay);
+}
+
+static const struct drm_connector_helper_funcs mgag200_bmc_connector_helper_funcs = {
+	.get_modes = mgag200_bmc_connector_helper_get_modes,
+	.detect_ctx = mgag200_bmc_connector_helper_detect_ctx,
+};
+
+static const struct drm_connector_funcs mgag200_bmc_connector_funcs = {
+	.reset = drm_atomic_helper_connector_reset,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.destroy = drm_connector_cleanup,
+	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+};
+
+static int mgag200_bmc_connector_init(struct drm_device *dev,
+				      struct mgag200_bmc_connector *bmc_connector,
+				      struct drm_connector *physical_connector)
+{
+	struct drm_connector *connector = &bmc_connector->base;
+	int ret;
+
+	ret = drm_connector_init(dev, connector, &mgag200_bmc_connector_funcs,
+				 DRM_MODE_CONNECTOR_VIRTUAL);
+	if (ret)
+		return ret;
+	drm_connector_helper_add(connector, &mgag200_bmc_connector_helper_funcs);
+
+	bmc_connector->physical_connector = physical_connector;
+
+	return 0;
+}
+
+int mgag200_bmc_output_init(struct mga_device *mdev, struct drm_connector *physical_connector)
+{
+	struct drm_device *dev = &mdev->base;
+	struct drm_crtc *crtc = &mdev->crtc;
+	struct drm_encoder *encoder;
+	struct mgag200_bmc_connector *bmc_connector;
+	struct drm_connector *connector;
+	int ret;
+
+	encoder = &mdev->output.bmc.encoder;
+	ret = drm_encoder_init(dev, encoder, &mgag200_bmc_encoder_funcs,
+			       DRM_MODE_ENCODER_VIRTUAL, NULL);
+	if (ret)
+		return ret;
+	encoder->possible_crtcs = drm_crtc_mask(crtc);
+
+	bmc_connector = &mdev->output.bmc.bmc_connector;
+	ret = mgag200_bmc_connector_init(dev, bmc_connector, physical_connector);
+	if (ret)
+		return ret;
+	connector = &bmc_connector->base;
+
+	ret = drm_connector_attach_encoder(connector, encoder);
+	if (ret)
+		return ret;
+
+	return 0;
+}
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
index db89fddc26dc..7f7dfbd0f013 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -186,6 +186,11 @@ static inline struct mgag200_crtc_state *to_mgag200_crtc_state(struct drm_crtc_s
 	return container_of(base, struct mgag200_crtc_state, base);
 }
 
+struct mgag200_bmc_connector {
+	struct drm_connector base;
+	struct drm_connector *physical_connector;
+};
+
 enum mga_type {
 	G200_PCI,
 	G200_AGP,
@@ -288,6 +293,10 @@ struct mga_device {
 			struct drm_encoder encoder;
 			struct drm_connector connector;
 		} vga;
+		struct {
+			struct drm_encoder encoder;
+			struct mgag200_bmc_connector bmc_connector;
+		} bmc;
 	} output;
 };
 
@@ -433,5 +442,6 @@ int mgag200_vga_output_init(struct mga_device *mdev);
 				/* mgag200_bmc.c */
 void mgag200_bmc_disable_vidrst(struct mga_device *mdev);
 void mgag200_bmc_enable_vidrst(struct mga_device *mdev);
+int mgag200_bmc_output_init(struct mga_device *mdev, struct drm_connector *physical_connector);
 
 #endif				/* __MGAG200_DRV_H__ */
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200eh.c b/drivers/gpu/drm/mgag200/mgag200_g200eh.c
index df00b25efb89..6f31c5249f0b 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200eh.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200eh.c
@@ -218,6 +218,10 @@ static int mgag200_g200eh_pipeline_init(struct mga_device *mdev)
 	if (ret)
 		return ret;
 
+	ret = mgag200_bmc_output_init(mdev, &mdev->output.vga.connector);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200eh3.c b/drivers/gpu/drm/mgag200/mgag200_g200eh3.c
index be42b1291e35..5befe8da4beb 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200eh3.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200eh3.c
@@ -122,6 +122,10 @@ static int mgag200_g200eh3_pipeline_init(struct mga_device *mdev)
 	if (ret)
 		return ret;
 
+	ret = mgag200_bmc_output_init(mdev, &mdev->output.vga.connector);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200er.c b/drivers/gpu/drm/mgag200/mgag200_g200er.c
index 6f2c07af38c4..55c275180cde 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200er.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200er.c
@@ -261,6 +261,10 @@ static int mgag200_g200er_pipeline_init(struct mga_device *mdev)
 	if (ret)
 		return ret;
 
+	ret = mgag200_bmc_output_init(mdev, &mdev->output.vga.connector);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200ev.c b/drivers/gpu/drm/mgag200/mgag200_g200ev.c
index 908d04d4c862..2466126140db 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200ev.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200ev.c
@@ -262,6 +262,10 @@ static int mgag200_g200ev_pipeline_init(struct mga_device *mdev)
 	if (ret)
 		return ret;
 
+	ret = mgag200_bmc_output_init(mdev, &mdev->output.vga.connector);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200ew3.c b/drivers/gpu/drm/mgag200/mgag200_g200ew3.c
index 8b69af543e2b..a52e60609c3d 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200ew3.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200ew3.c
@@ -131,6 +131,10 @@ static int mgag200_g200ew3_pipeline_init(struct mga_device *mdev)
 	if (ret)
 		return ret;
 
+	ret = mgag200_bmc_output_init(mdev, &mdev->output.vga.connector);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200se.c b/drivers/gpu/drm/mgag200/mgag200_g200se.c
index 6d7fbdf62b97..212770acdd47 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200se.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200se.c
@@ -393,6 +393,10 @@ static int mgag200_g200se_pipeline_init(struct mga_device *mdev)
 	if (ret)
 		return ret;
 
+	ret = mgag200_bmc_output_init(mdev, &mdev->output.vga.connector);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200wb.c b/drivers/gpu/drm/mgag200/mgag200_g200wb.c
index 564d1f3ecc10..cb6daa0426fb 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200wb.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200wb.c
@@ -265,6 +265,10 @@ static int mgag200_g200wb_pipeline_init(struct mga_device *mdev)
 	if (ret)
 		return ret;
 
+	ret = mgag200_bmc_output_init(mdev, &mdev->output.vga.connector);
+	if (ret)
+		return ret;
+
 	return 0;
 }