diff --git a/Documentation/devicetree/bindings/display/bridge/dumb-vga-dac.txt b/Documentation/devicetree/bindings/display/bridge/dumb-vga-dac.txt
new file mode 100644
index 0000000000000000000000000000000000000000..003bc246a27060c47780cb93a618acefa57b3dee
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/dumb-vga-dac.txt
@@ -0,0 +1,48 @@
+Dumb RGB to VGA DAC bridge
+---------------------------
+
+This binding is aimed for dumb RGB to VGA DAC based bridges that do not require
+any configuration.
+
+Required properties:
+
+- compatible: Must be "dumb-vga-dac"
+
+Required nodes:
+
+This device has two video ports. Their connections are modelled using the OF
+graph bindings specified in Documentation/devicetree/bindings/graph.txt.
+
+- Video port 0 for RGB input
+- Video port 1 for VGA output
+
+
+Example
+-------
+
+bridge {
+	compatible = "dumb-vga-dac";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+
+			vga_bridge_in: endpoint {
+				remote-endpoint = <&tcon0_out_vga>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+
+			vga_bridge_out: endpoint {
+				remote-endpoint = <&vga_con_in>;
+			};
+		};
+	};
+};
diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c
index cb8f0347b934d4be4b385796a03352dca5e7b381..a5e428d27d2fd81ac4ebe82e6aa8e06efe6ebc70 100644
--- a/drivers/gpu/drm/armada/armada_gem.c
+++ b/drivers/gpu/drm/armada/armada_gem.c
@@ -547,7 +547,7 @@ armada_gem_prime_export(struct drm_device *dev, struct drm_gem_object *obj,
 	exp_info.flags = O_RDWR;
 	exp_info.priv = obj;
 
-	return dma_buf_export(&exp_info);
+	return drm_gem_dmabuf_export(dev, &exp_info);
 }
 
 struct drm_gem_object *
diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
index b590e678052dc1c34fa635487a5da744d6aaa2dd..10e12e74fc9fc77550874a02fca86f7d3b85c27e 100644
--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -17,6 +17,13 @@ config DRM_ANALOGIX_ANX78XX
 	  the HDMI output of an application processor to MyDP
 	  or DisplayPort.
 
+config DRM_DUMB_VGA_DAC
+	tristate "Dumb VGA DAC Bridge support"
+	depends on OF
+	select DRM_KMS_HELPER
+	help
+	  Support for RGB to VGA DAC based bridges
+
 config DRM_DW_HDMI
 	tristate
 	select DRM_KMS_HELPER
diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile
index efdb07e878f5c5623d7645fb2c499d219210e37a..cdf3a3cf765df54bb234168367dcbaadc5c27295 100644
--- a/drivers/gpu/drm/bridge/Makefile
+++ b/drivers/gpu/drm/bridge/Makefile
@@ -1,6 +1,7 @@
 ccflags-y := -Iinclude/drm
 
 obj-$(CONFIG_DRM_ANALOGIX_ANX78XX) += analogix-anx78xx.o
+obj-$(CONFIG_DRM_DUMB_VGA_DAC) += dumb-vga-dac.o
 obj-$(CONFIG_DRM_DW_HDMI) += dw-hdmi.o
 obj-$(CONFIG_DRM_DW_HDMI_AHB_AUDIO) += dw-hdmi-ahb-audio.o
 obj-$(CONFIG_DRM_NXP_PTN3460) += nxp-ptn3460.o
diff --git a/drivers/gpu/drm/bridge/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix-anx78xx.c
index f9f03bcba0af56c8c81926ea322e0c52817fff33..a2a82366a7714493488257c357dbc614215712b1 100644
--- a/drivers/gpu/drm/bridge/analogix-anx78xx.c
+++ b/drivers/gpu/drm/bridge/analogix-anx78xx.c
@@ -1001,16 +1001,11 @@ static enum drm_connector_status anx78xx_detect(struct drm_connector *connector,
 	return connector_status_connected;
 }
 
-static void anx78xx_connector_destroy(struct drm_connector *connector)
-{
-	drm_connector_cleanup(connector);
-}
-
 static const struct drm_connector_funcs anx78xx_connector_funcs = {
 	.dpms = drm_atomic_helper_connector_dpms,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.detect = anx78xx_detect,
-	.destroy = anx78xx_connector_destroy,
+	.destroy = drm_connector_cleanup,
 	.reset = drm_atomic_helper_connector_reset,
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index 001b075e171b47d5ac5b39418f34d154e6e1fe3a..6e0447f329a24f085f5c21ace4f593fe250f7a90 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -999,18 +999,11 @@ analogix_dp_detect(struct drm_connector *connector, bool force)
 	return status;
 }
 
-static void analogix_dp_connector_destroy(struct drm_connector *connector)
-{
-	drm_connector_unregister(connector);
-	drm_connector_cleanup(connector);
-
-}
-
 static const struct drm_connector_funcs analogix_dp_connector_funcs = {
 	.dpms = drm_atomic_helper_connector_dpms,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.detect = analogix_dp_detect,
-	.destroy = analogix_dp_connector_destroy,
+	.destroy = drm_connector_cleanup,
 	.reset = drm_atomic_helper_connector_reset,
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
diff --git a/drivers/gpu/drm/bridge/dumb-vga-dac.c b/drivers/gpu/drm/bridge/dumb-vga-dac.c
new file mode 100644
index 0000000000000000000000000000000000000000..afec232185a76e0a71987ed6982f47b23f8ca3d1
--- /dev/null
+++ b/drivers/gpu/drm/bridge/dumb-vga-dac.c
@@ -0,0 +1,223 @@
+/*
+ * Copyright (C) 2015-2016 Free Electrons
+ * Copyright (C) 2015-2016 NextThing Co
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/of_graph.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+
+struct dumb_vga {
+	struct drm_bridge	bridge;
+	struct drm_connector	connector;
+
+	struct i2c_adapter	*ddc;
+};
+
+static inline struct dumb_vga *
+drm_bridge_to_dumb_vga(struct drm_bridge *bridge)
+{
+	return container_of(bridge, struct dumb_vga, bridge);
+}
+
+static inline struct dumb_vga *
+drm_connector_to_dumb_vga(struct drm_connector *connector)
+{
+	return container_of(connector, struct dumb_vga, connector);
+}
+
+static int dumb_vga_get_modes(struct drm_connector *connector)
+{
+	struct dumb_vga *vga = drm_connector_to_dumb_vga(connector);
+	struct edid *edid;
+	int ret;
+
+	if (IS_ERR(vga->ddc))
+		goto fallback;
+
+	edid = drm_get_edid(connector, vga->ddc);
+	if (!edid) {
+		DRM_INFO("EDID readout failed, falling back to standard modes\n");
+		goto fallback;
+	}
+
+	drm_mode_connector_update_edid_property(connector, edid);
+	return drm_add_edid_modes(connector, edid);
+
+fallback:
+	/*
+	 * In case we cannot retrieve the EDIDs (broken or missing i2c
+	 * bus), fallback on the XGA standards
+	 */
+	ret = drm_add_modes_noedid(connector, 1920, 1200);
+
+	/* And prefer a mode pretty much anyone can handle */
+	drm_set_preferred_mode(connector, 1024, 768);
+
+	return ret;
+}
+
+static const struct drm_connector_helper_funcs dumb_vga_con_helper_funcs = {
+	.get_modes	= dumb_vga_get_modes,
+};
+
+static enum drm_connector_status
+dumb_vga_connector_detect(struct drm_connector *connector, bool force)
+{
+	struct dumb_vga *vga = drm_connector_to_dumb_vga(connector);
+
+	/*
+	 * Even if we have an I2C bus, we can't assume that the cable
+	 * is disconnected if drm_probe_ddc fails. Some cables don't
+	 * wire the DDC pins, or the I2C bus might not be working at
+	 * all.
+	 */
+	if (!IS_ERR(vga->ddc) && drm_probe_ddc(vga->ddc))
+		return connector_status_connected;
+
+	return connector_status_unknown;
+}
+
+static const struct drm_connector_funcs dumb_vga_con_funcs = {
+	.dpms			= drm_atomic_helper_connector_dpms,
+	.detect			= dumb_vga_connector_detect,
+	.fill_modes		= drm_helper_probe_single_connector_modes,
+	.destroy		= drm_connector_cleanup,
+	.reset			= drm_atomic_helper_connector_reset,
+	.atomic_duplicate_state	= drm_atomic_helper_connector_duplicate_state,
+	.atomic_destroy_state	= drm_atomic_helper_connector_destroy_state,
+};
+
+static int dumb_vga_attach(struct drm_bridge *bridge)
+{
+	struct dumb_vga *vga = drm_bridge_to_dumb_vga(bridge);
+	int ret;
+
+	if (!bridge->encoder) {
+		DRM_ERROR("Missing encoder\n");
+		return -ENODEV;
+	}
+
+	drm_connector_helper_add(&vga->connector,
+				 &dumb_vga_con_helper_funcs);
+	ret = drm_connector_init(bridge->dev, &vga->connector,
+				 &dumb_vga_con_funcs, DRM_MODE_CONNECTOR_VGA);
+	if (ret) {
+		DRM_ERROR("Failed to initialize connector\n");
+		return ret;
+	}
+
+	drm_mode_connector_attach_encoder(&vga->connector,
+					  bridge->encoder);
+
+	return 0;
+}
+
+static const struct drm_bridge_funcs dumb_vga_bridge_funcs = {
+	.attach		= dumb_vga_attach,
+};
+
+static struct i2c_adapter *dumb_vga_retrieve_ddc(struct device *dev)
+{
+	struct device_node *end_node, *phandle, *remote;
+	struct i2c_adapter *ddc;
+
+	end_node = of_graph_get_endpoint_by_regs(dev->of_node, 1, -1);
+	if (!end_node) {
+		dev_err(dev, "Missing connector endpoint\n");
+		return ERR_PTR(-ENODEV);
+	}
+
+	remote = of_graph_get_remote_port_parent(end_node);
+	of_node_put(end_node);
+	if (!remote) {
+		dev_err(dev, "Enable to parse remote node\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	phandle = of_parse_phandle(remote, "ddc-i2c-bus", 0);
+	of_node_put(remote);
+	if (!phandle)
+		return ERR_PTR(-ENODEV);
+
+	ddc = of_get_i2c_adapter_by_node(phandle);
+	of_node_put(phandle);
+	if (!ddc)
+		return ERR_PTR(-EPROBE_DEFER);
+
+	return ddc;
+}
+
+static int dumb_vga_probe(struct platform_device *pdev)
+{
+	struct dumb_vga *vga;
+	int ret;
+
+	vga = devm_kzalloc(&pdev->dev, sizeof(*vga), GFP_KERNEL);
+	if (!vga)
+		return -ENOMEM;
+	platform_set_drvdata(pdev, vga);
+
+	vga->ddc = dumb_vga_retrieve_ddc(&pdev->dev);
+	if (IS_ERR(vga->ddc)) {
+		if (PTR_ERR(vga->ddc) == -ENODEV) {
+			dev_dbg(&pdev->dev,
+				"No i2c bus specified. Disabling EDID readout\n");
+		} else {
+			dev_err(&pdev->dev, "Couldn't retrieve i2c bus\n");
+			return PTR_ERR(vga->ddc);
+		}
+	}
+
+	vga->bridge.funcs = &dumb_vga_bridge_funcs;
+	vga->bridge.of_node = pdev->dev.of_node;
+
+	ret = drm_bridge_add(&vga->bridge);
+	if (ret && !IS_ERR(vga->ddc))
+		i2c_put_adapter(vga->ddc);
+
+	return ret;
+}
+
+static int dumb_vga_remove(struct platform_device *pdev)
+{
+	struct dumb_vga *vga = platform_get_drvdata(pdev);
+
+	drm_bridge_remove(&vga->bridge);
+
+	if (!IS_ERR(vga->ddc))
+		i2c_put_adapter(vga->ddc);
+
+	return 0;
+}
+
+static const struct of_device_id dumb_vga_match[] = {
+	{ .compatible = "dumb-vga-dac" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, dumb_vga_match);
+
+static struct platform_driver dumb_vga_driver = {
+	.probe	= dumb_vga_probe,
+	.remove	= dumb_vga_remove,
+	.driver		= {
+		.name		= "dumb-vga-dac",
+		.of_match_table	= dumb_vga_match,
+	},
+};
+module_platform_driver(dumb_vga_driver);
+
+MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
+MODULE_DESCRIPTION("Dumb VGA DAC bridge driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c
index 66ad8e6fb11ed8beb54d08e062f4bccc06618936..ab7023e5dfdec6d5981f48a46f35aca67df8ac7b 100644
--- a/drivers/gpu/drm/bridge/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/dw-hdmi.c
@@ -1477,12 +1477,6 @@ dw_hdmi_connector_mode_valid(struct drm_connector *connector,
 	return mode_status;
 }
 
-static void dw_hdmi_connector_destroy(struct drm_connector *connector)
-{
-	drm_connector_unregister(connector);
-	drm_connector_cleanup(connector);
-}
-
 static void dw_hdmi_connector_force(struct drm_connector *connector)
 {
 	struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
@@ -1499,7 +1493,7 @@ static const struct drm_connector_funcs dw_hdmi_connector_funcs = {
 	.dpms = drm_atomic_helper_connector_dpms,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.detect = dw_hdmi_connector_detect,
-	.destroy = dw_hdmi_connector_destroy,
+	.destroy = drm_connector_cleanup,
 	.force = dw_hdmi_connector_force,
 	.reset = drm_atomic_helper_connector_reset,
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
diff --git a/drivers/gpu/drm/bridge/nxp-ptn3460.c b/drivers/gpu/drm/bridge/nxp-ptn3460.c
index 93f3dacf9e27170d11ef17d66d4e6f994a91b2cc..f1a99938e924cd097a161caeb29bf7eb484667e5 100644
--- a/drivers/gpu/drm/bridge/nxp-ptn3460.c
+++ b/drivers/gpu/drm/bridge/nxp-ptn3460.c
@@ -245,16 +245,11 @@ static enum drm_connector_status ptn3460_detect(struct drm_connector *connector,
 	return connector_status_connected;
 }
 
-static void ptn3460_connector_destroy(struct drm_connector *connector)
-{
-	drm_connector_cleanup(connector);
-}
-
 static const struct drm_connector_funcs ptn3460_connector_funcs = {
 	.dpms = drm_atomic_helper_connector_dpms,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.detect = ptn3460_detect,
-	.destroy = ptn3460_connector_destroy,
+	.destroy = drm_connector_cleanup,
 	.reset = drm_atomic_helper_connector_reset,
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
diff --git a/drivers/gpu/drm/bridge/parade-ps8622.c b/drivers/gpu/drm/bridge/parade-ps8622.c
index f1b39a2645cc2be14287547c61a57060e5a31f15..6f7c2f9860d229361f455ff96adcd9e275f89fbb 100644
--- a/drivers/gpu/drm/bridge/parade-ps8622.c
+++ b/drivers/gpu/drm/bridge/parade-ps8622.c
@@ -483,16 +483,11 @@ static enum drm_connector_status ps8622_detect(struct drm_connector *connector,
 	return connector_status_connected;
 }
 
-static void ps8622_connector_destroy(struct drm_connector *connector)
-{
-	drm_connector_cleanup(connector);
-}
-
 static const struct drm_connector_funcs ps8622_connector_funcs = {
 	.dpms = drm_atomic_helper_connector_dpms,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.detect = ps8622_detect,
-	.destroy = ps8622_connector_destroy,
+	.destroy = drm_connector_cleanup,
 	.reset = drm_atomic_helper_connector_reset,
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index a09825d8c94a153fc7a6f7a3dc46b524908a126d..44d476ea6d2e000520c042a54297b266fdc5f308 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -1165,17 +1165,11 @@ static const struct drm_connector_helper_funcs tc_connector_helper_funcs = {
 	.best_encoder = tc_connector_best_encoder,
 };
 
-static void tc_connector_destroy(struct drm_connector *connector)
-{
-	drm_connector_unregister(connector);
-	drm_connector_cleanup(connector);
-}
-
 static const struct drm_connector_funcs tc_connector_funcs = {
 	.dpms = drm_atomic_helper_connector_dpms,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.detect = tc_connector_detect,
-	.destroy = tc_connector_destroy,
+	.destroy = drm_connector_cleanup,
 	.reset = drm_atomic_helper_connector_reset,
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 26bb78c76481dabdf834630c3ce706b73fa81112..2db7fb510b6c941c2f252dc29591e4c51cd981c5 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -250,10 +250,10 @@ int drm_connector_init(struct drm_device *dev,
 	connector->debugfs_entry = NULL;
 out_put_type_id:
 	if (ret)
-		ida_remove(connector_ida, connector->connector_type_id);
+		ida_simple_remove(connector_ida, connector->connector_type_id);
 out_put_id:
 	if (ret)
-		ida_remove(&config->connector_ida, connector->index);
+		ida_simple_remove(&config->connector_ida, connector->index);
 out_put:
 	if (ret)
 		drm_mode_object_unregister(dev, &connector->base);
@@ -341,11 +341,11 @@ void drm_connector_cleanup(struct drm_connector *connector)
 	list_for_each_entry_safe(mode, t, &connector->modes, head)
 		drm_mode_remove(connector, mode);
 
-	ida_remove(&drm_connector_enum_list[connector->connector_type].ida,
-		   connector->connector_type_id);
+	ida_simple_remove(&drm_connector_enum_list[connector->connector_type].ida,
+			  connector->connector_type_id);
 
-	ida_remove(&dev->mode_config.connector_ida,
-		   connector->index);
+	ida_simple_remove(&dev->mode_config.connector_ida,
+			  connector->index);
 
 	kfree(connector->display_info.bus_formats);
 	drm_mode_object_unregister(dev, &connector->base);
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index 57201d68cf61bdabf5bbe4e7cd5275bef733d614..b22a94dd7b53fcf2459328e5852cff6b3833f447 100644
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -283,19 +283,48 @@ static void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
 	/* nothing to be done here */
 }
 
+/**
+ * drm_gem_dmabuf_export - dma_buf export implementation for GEM
+ * @dev: parent device for the exported dmabuf
+ * @exp_info: the export information used by dma_buf_export()
+ *
+ * This wraps dma_buf_export() for use by generic GEM drivers that are using
+ * drm_gem_dmabuf_release(). In addition to calling dma_buf_export(), we take
+ * a reference to the drm_device which is released by drm_gem_dmabuf_release().
+ *
+ * Returns the new dmabuf.
+ */
+struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
+				      struct dma_buf_export_info *exp_info)
+{
+	struct dma_buf *dma_buf;
+
+	dma_buf = dma_buf_export(exp_info);
+	if (!IS_ERR(dma_buf))
+		drm_dev_ref(dev);
+
+	return dma_buf;
+}
+EXPORT_SYMBOL(drm_gem_dmabuf_export);
+
 /**
  * drm_gem_dmabuf_release - dma_buf release implementation for GEM
  * @dma_buf: buffer to be released
  *
  * Generic release function for dma_bufs exported as PRIME buffers. GEM drivers
  * must use this in their dma_buf ops structure as the release callback.
+ * drm_gem_dmabuf_release() should be used in conjunction with
+ * drm_gem_dmabuf_export().
  */
 void drm_gem_dmabuf_release(struct dma_buf *dma_buf)
 {
 	struct drm_gem_object *obj = dma_buf->priv;
+	struct drm_device *dev = obj->dev;
 
 	/* drop the reference on the export fd holds */
 	drm_gem_object_unreference_unlocked(obj);
+
+	drm_dev_unref(dev);
 }
 EXPORT_SYMBOL(drm_gem_dmabuf_release);
 
@@ -397,19 +426,22 @@ static const struct dma_buf_ops drm_gem_prime_dmabuf_ops =  {
  * using the PRIME helpers.
  */
 struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
-				     struct drm_gem_object *obj, int flags)
+				     struct drm_gem_object *obj,
+				     int flags)
 {
-	DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
-
-	exp_info.ops = &drm_gem_prime_dmabuf_ops;
-	exp_info.size = obj->size;
-	exp_info.flags = flags;
-	exp_info.priv = obj;
+	struct dma_buf_export_info exp_info = {
+		.exp_name = KBUILD_MODNAME, /* white lie for debug */
+		.owner = dev->driver->fops->owner,
+		.ops = &drm_gem_prime_dmabuf_ops,
+		.size = obj->size,
+		.flags = flags,
+		.priv = obj,
+	};
 
 	if (dev->driver->gem_prime_res_obj)
 		exp_info.resv = dev->driver->gem_prime_res_obj(obj);
 
-	return dma_buf_export(&exp_info);
+	return drm_gem_dmabuf_export(dev, &exp_info);
 }
 EXPORT_SYMBOL(drm_gem_prime_export);
 
diff --git a/drivers/gpu/drm/drm_simple_kms_helper.c b/drivers/gpu/drm/drm_simple_kms_helper.c
index 7b6d26e64977b65473a2348f000a94707db20589..7bae08c2bf0a92b9c547550cf61c4b670130d90d 100644
--- a/drivers/gpu/drm/drm_simple_kms_helper.c
+++ b/drivers/gpu/drm/drm_simple_kms_helper.c
@@ -125,7 +125,33 @@ static void drm_simple_kms_plane_atomic_update(struct drm_plane *plane,
 	pipe->funcs->update(pipe, pstate);
 }
 
+static int drm_simple_kms_plane_prepare_fb(struct drm_plane *plane,
+					   struct drm_plane_state *state)
+{
+	struct drm_simple_display_pipe *pipe;
+
+	pipe = container_of(plane, struct drm_simple_display_pipe, plane);
+	if (!pipe->funcs || !pipe->funcs->prepare_fb)
+		return 0;
+
+	return pipe->funcs->prepare_fb(pipe, state);
+}
+
+static void drm_simple_kms_plane_cleanup_fb(struct drm_plane *plane,
+					    struct drm_plane_state *state)
+{
+	struct drm_simple_display_pipe *pipe;
+
+	pipe = container_of(plane, struct drm_simple_display_pipe, plane);
+	if (!pipe->funcs || !pipe->funcs->cleanup_fb)
+		return;
+
+	pipe->funcs->cleanup_fb(pipe, state);
+}
+
 static const struct drm_plane_helper_funcs drm_simple_kms_plane_helper_funcs = {
+	.prepare_fb = drm_simple_kms_plane_prepare_fb,
+	.cleanup_fb = drm_simple_kms_plane_cleanup_fb,
 	.atomic_check = drm_simple_kms_plane_atomic_check,
 	.atomic_update = drm_simple_kms_plane_atomic_update,
 };
diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
index 10265bb356041adc86988568f188f1fe60cb6058..97c9d68b45dfc5d256486b6b5b2e96dd0cd2eb27 100644
--- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
@@ -283,7 +283,7 @@ struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
 			return ERR_PTR(ret);
 	}
 
-	dma_buf = dma_buf_export(&exp_info);
+	dma_buf = drm_gem_dmabuf_export(dev, &exp_info);
 	if (IS_ERR(dma_buf))
 		return dma_buf;
 
diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
index aa60d9909ea2d3df2c432ee82ea4575722b3619c..95e622e31931e60fde65785783eee812cc9ef1d1 100644
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -613,7 +613,7 @@ struct dma_buf *tegra_gem_prime_export(struct drm_device *drm,
 	exp_info.flags = flags;
 	exp_info.priv = gem;
 
-	return dma_buf_export(&exp_info);
+	return drm_gem_dmabuf_export(drm, &exp_info);
 }
 
 struct drm_gem_object *tegra_gem_prime_import(struct drm_device *drm,
diff --git a/drivers/gpu/drm/udl/udl_dmabuf.c b/drivers/gpu/drm/udl/udl_dmabuf.c
index e2243edd1ce31d6aeaa98e7e1f3ea7bc2ebb31cf..ac90ffdb59120f3505a99565250655c7c8876436 100644
--- a/drivers/gpu/drm/udl/udl_dmabuf.c
+++ b/drivers/gpu/drm/udl/udl_dmabuf.c
@@ -209,7 +209,7 @@ struct dma_buf *udl_gem_prime_export(struct drm_device *dev,
 	exp_info.flags = flags;
 	exp_info.priv = obj;
 
-	return dma_buf_export(&exp_info);
+	return drm_gem_dmabuf_export(dev, &exp_info);
 }
 
 static int udl_prime_create(struct drm_device *dev,
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 0e99669159c11d92f7d9b0652e9ffdb5b70a5858..672644031bd5145bd6335f76246adfa9678a7371 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1011,8 +1011,11 @@ static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
 }
 #endif
 
+struct dma_buf_export_info;
+
 extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
-		struct drm_gem_object *obj, int flags);
+					    struct drm_gem_object *obj,
+					    int flags);
 extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
 		struct drm_file *file_priv, uint32_t handle, uint32_t flags,
 		int *prime_fd);
@@ -1020,6 +1023,8 @@ extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev,
 		struct dma_buf *dma_buf);
 extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
 		struct drm_file *file_priv, int prime_fd, uint32_t *handle);
+struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
+				      struct dma_buf_export_info *exp_info);
 extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
 
 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 287a610f464e1b791d7e915ef086db0313e69595..ac9d7d8e0e43a807e9fc9a0b66de5f26b49d3348 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -356,7 +356,7 @@ struct drm_connector_funcs {
 	 *
 	 * This optional hook should be used to unregister the additional
 	 * userspace interfaces attached to the connector from
-	 * late_unregister(). It is called from drm_connector_unregister(),
+	 * late_register(). It is called from drm_connector_unregister(),
 	 * early in the driver unload sequence to disable userspace access
 	 * before data structures are torndown.
 	 */
@@ -376,7 +376,7 @@ struct drm_connector_funcs {
 	 * @atomic_duplicate_state:
 	 *
 	 * Duplicate the current atomic state for this connector and return it.
-	 * The core and helpers gurantee that any atomic state duplicated with
+	 * The core and helpers guarantee that any atomic state duplicated with
 	 * this hook and still owned by the caller (i.e. not transferred to the
 	 * driver by calling ->atomic_commit() from struct
 	 * &drm_mode_config_funcs) will be cleaned up by calling the
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 61932f55f7880db2001407ecd145cb819924e59b..0aa292526567abd211b688641178af5ce5bff8a0 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1342,7 +1342,7 @@ extern void drm_crtc_cleanup(struct drm_crtc *crtc);
  * Given a registered CRTC, return the index of that CRTC within a DRM
  * device's list of CRTCs.
  */
-static inline unsigned int drm_crtc_index(struct drm_crtc *crtc)
+static inline unsigned int drm_crtc_index(const struct drm_crtc *crtc)
 {
 	return crtc->index;
 }
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 3c5f5992b96afe8b1fc9fa5a7be5094e6cada166..ed8edfef75b23e6441458475533e73fa94762a29 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -218,7 +218,7 @@ struct drm_fb_helper {
 };
 
 /**
- * @DRM_FB_HELPER_DEFAULT_OPS:
+ * define DRM_FB_HELPER_DEFAULT_OPS - helper define for drm drivers
  *
  * Helper define to register default implementations of drm_fb_helper
  * functions. To be used in struct fb_ops of drm drivers.
diff --git a/include/drm/drm_simple_kms_helper.h b/include/drm/drm_simple_kms_helper.h
index 5d112f75e04c0255e54b9c74ef8093ab46aa03d9..01a8436ccb0a9b02ff38df34857ec1bac9ba8a6f 100644
--- a/include/drm/drm_simple_kms_helper.h
+++ b/include/drm/drm_simple_kms_helper.h
@@ -69,6 +69,26 @@ struct drm_simple_display_pipe_funcs {
 	 */
 	void (*update)(struct drm_simple_display_pipe *pipe,
 		       struct drm_plane_state *plane_state);
+
+	/**
+	 * @prepare_fb:
+	 *
+	 * Optional, called by struct &drm_plane_helper_funcs ->prepare_fb .
+	 * Please read the documentation for the ->prepare_fb hook in
+	 * struct &drm_plane_helper_funcs for more details.
+	 */
+	int (*prepare_fb)(struct drm_simple_display_pipe *pipe,
+			  struct drm_plane_state *plane_state);
+
+	/**
+	 * @cleanup_fb:
+	 *
+	 * Optional, called by struct &drm_plane_helper_funcs ->cleanup_fb .
+	 * Please read the documentation for the ->cleanup_fb hook in
+	 * struct &drm_plane_helper_funcs for more details.
+	 */
+	void (*cleanup_fb)(struct drm_simple_display_pipe *pipe,
+			   struct drm_plane_state *plane_state);
 };
 
 /**