Merge branch 'archit/outputs-for-3.7'

Merge omapdss output work, that creates a new entity "output" to represent the
outputs (DPI, DSI, HDMI, ...) from DSS. An output sits in between an overlay
manager and a panel, and helps us to remove references to panel devices from
the omapdss core.

* archit/outputs-for-3.7: (23 commits)
  OMAPDSS: Remove old way of setting manager and device links
  OMAPDSS: APPLY: Remove omap_dss_device references from dss_ovl_enable/disable
  OMAPDSS: OVERLAY/MANAGER: Get device via output
  OMAPDSS: MANAGER: Update display sysfs store
  OMAPFB: Change dssdev->manager references
  OMAPDSS: HDMI: Replace dssdev->manager with dssdev->output->manager references
  OMAPDSS: VENC: Replace dssdev->manager with dssdev->output->manager references
  OMAPDSS: RFBI: Replace dssdev->manager with dssdev->output->manager references
  OMAPDSS: SDI: Replace dssdev->manager with dssdev->output->manager references
  OMAPDSS: DSI: Replace dssdev->manager with dssdev->output->manager references
  OMAPDSS: DSI: Remove dsi_pdev_map global struct
  OMAPDSS: DPI: Replace dssdev->manager with dssdev->output->manager references
  OMAPDSS: Create links between managers, outputs and devices
  OMAPDRM: Remove manager->device references
  OMAPFB: remove manager->device references
  OMAP_VOUT: Remove manager->device references
  OMAPDSS: Remove manager->device references
  OMAPDSS: APPLY: Add manager set/unset output ops for omap_overlay_manager
  OMAPDSS: output: Add set/unset device ops for omap_dss_output
  OMAPDSS: outputs: Create and register output instances
  ...

drivers/media/video/omap/omap_vout.c

@@ -454,11 +454,15 @@ static int omapvid_init(struct omap_vout_device *vout, u32 addr)
 
 	win = &vout->win;
 	for (i = 0; i < ovid->num_overlays; i++) {
+		struct omap_dss_device *dssdev;
+
 		ovl = ovid->overlays[i];
-		if (!ovl->manager || !ovl->manager->device)
+		dssdev = ovl->get_device(ovl);
+
+		if (!dssdev)
 			return -EINVAL;
 
-		timing = &ovl->manager->device->panel.timings;
+		timing = &dssdev->panel.timings;
 
 		outw = win->w.width;
 		outh = win->w.height;
@@ -515,8 +519,11 @@ static int omapvid_apply_changes(struct omap_vout_device *vout)
 	struct omapvideo_info *ovid = &vout->vid_info;
 
 	for (i = 0; i < ovid->num_overlays; i++) {
+		struct omap_dss_device *dssdev;
+
 		ovl = ovid->overlays[i];
-		if (!ovl->manager || !ovl->manager->device)
+		dssdev = ovl->get_device(ovl);
+		if (!dssdev)
 			return -EINVAL;
 		ovl->manager->apply(ovl->manager);
 	}
@@ -579,12 +586,14 @@ static void omap_vout_isr(void *arg, unsigned int irqstatus)
 
 	ovid = &vout->vid_info;
 	ovl = ovid->overlays[0];
-	/* get the display device attached to the overlay */
-	if (!ovl->manager || !ovl->manager->device)
-		return;
 
 	mgr_id = ovl->manager->id;
-	cur_display = ovl->manager->device;
+
+	/* get the display device attached to the overlay */
+	cur_display = ovl->get_device(ovl);
+
+	if (!cur_display)
+		return;
 
 	spin_lock(&vout->vbq_lock);
 	do_gettimeofday(&timevalue);
@@ -948,7 +957,9 @@ static int omap_vout_release(struct file *file)
 	/* Disable all the overlay managers connected with this interface */
 	for (i = 0; i < ovid->num_overlays; i++) {
 		struct omap_overlay *ovl = ovid->overlays[i];
-		if (ovl->manager && ovl->manager->device)
+		struct omap_dss_device *dssdev = ovl->get_device(ovl);
+
+		if (dssdev)
 			ovl->disable(ovl);
 	}
 	/* Turn off the pipeline */
@@ -1081,14 +1092,17 @@ static int vidioc_try_fmt_vid_out(struct file *file, void *fh,
 	struct omapvideo_info *ovid;
 	struct omap_video_timings *timing;
 	struct omap_vout_device *vout = fh;
+	struct omap_dss_device *dssdev;
 
 	ovid = &vout->vid_info;
 	ovl = ovid->overlays[0];
+	/* get the display device attached to the overlay */
+	dssdev = ovl->get_device(ovl);
 
-	if (!ovl->manager || !ovl->manager->device)
+	if (!dssdev)
 		return -EINVAL;
-	/* get the display device attached to the overlay */
-	timing = &ovl->manager->device->panel.timings;
+
+	timing = &dssdev->panel.timings;
 
 	vout->fbuf.fmt.height = timing->y_res;
 	vout->fbuf.fmt.width = timing->x_res;
@@ -1105,6 +1119,7 @@ static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
 	struct omapvideo_info *ovid;
 	struct omap_video_timings *timing;
 	struct omap_vout_device *vout = fh;
+	struct omap_dss_device *dssdev;
 
 	if (vout->streaming)
 		return -EBUSY;
@@ -1113,13 +1128,14 @@ static int vidioc_s_fmt_vid_out(struct file *file, void *fh,
 
 	ovid = &vout->vid_info;
 	ovl = ovid->overlays[0];
+	dssdev = ovl->get_device(ovl);
 
 	/* get the display device attached to the overlay */
-	if (!ovl->manager || !ovl->manager->device) {
+	if (!dssdev) {
 		ret = -EINVAL;
 		goto s_fmt_vid_out_exit;
 	}
-	timing = &ovl->manager->device->panel.timings;
+	timing = &dssdev->panel.timings;
 
 	/* We dont support RGB24-packed mode if vrfb rotation
 	 * is enabled*/
@@ -1298,6 +1314,7 @@ static int vidioc_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
 	struct omapvideo_info *ovid;
 	struct omap_overlay *ovl;
 	struct omap_video_timings *timing;
+	struct omap_dss_device *dssdev;
 
 	if (vout->streaming)
 		return -EBUSY;
@@ -1305,13 +1322,15 @@ static int vidioc_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
 	mutex_lock(&vout->lock);
 	ovid = &vout->vid_info;
 	ovl = ovid->overlays[0];
+	/* get the display device attached to the overlay */
+	dssdev = ovl->get_device(ovl);
 
-	if (!ovl->manager || !ovl->manager->device) {
+	if (!dssdev) {
 		ret = -EINVAL;
 		goto s_crop_err;
 	}
-	/* get the display device attached to the overlay */
-	timing = &ovl->manager->device->panel.timings;
+
+	timing = &dssdev->panel.timings;
 
 	if (is_rotation_90_or_270(vout)) {
 		vout->fbuf.fmt.height = timing->x_res;
@@ -1667,7 +1686,7 @@ static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
 	for (j = 0; j < ovid->num_overlays; j++) {
 		struct omap_overlay *ovl = ovid->overlays[j];
 
-		if (ovl->manager && ovl->manager->device) {
+		if (ovl->get_device(ovl)) {
 			struct omap_overlay_info info;
 			ovl->get_overlay_info(ovl, &info);
 			info.paddr = addr;
@@ -1690,8 +1709,9 @@ static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
 
 	for (j = 0; j < ovid->num_overlays; j++) {
 		struct omap_overlay *ovl = ovid->overlays[j];
+		struct omap_dss_device *dssdev = ovl->get_device(ovl);
 
-		if (ovl->manager && ovl->manager->device) {
+		if (dssdev) {
 			ret = ovl->enable(ovl);
 			if (ret)
 				goto streamon_err1;
@@ -1726,8 +1746,9 @@ static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
 
 	for (j = 0; j < ovid->num_overlays; j++) {
 		struct omap_overlay *ovl = ovid->overlays[j];
+		struct omap_dss_device *dssdev = ovl->get_device(ovl);
 
-		if (ovl->manager && ovl->manager->device)
+		if (dssdev)
 			ovl->disable(ovl);
 	}
 
@@ -1890,8 +1911,8 @@ static int __init omap_vout_setup_video_data(struct omap_vout_device *vout)
 	struct video_device *vfd;
 	struct v4l2_pix_format *pix;
 	struct v4l2_control *control;
-	struct omap_dss_device *display =
-		vout->vid_info.overlays[0]->manager->device;
+	struct omap_overlay *ovl = vout->vid_info.overlays[0];
+	struct omap_dss_device *display = ovl->get_device(ovl);
 
 	/* set the default pix */
 	pix = &vout->pix;
@@ -2205,8 +2226,10 @@ static int __init omap_vout_probe(struct platform_device *pdev)
 	 */
 	for (i = 1; i < vid_dev->num_overlays; i++) {
 		ovl = omap_dss_get_overlay(i);
-		if (ovl->manager && ovl->manager->device) {
-			def_display = ovl->manager->device;
+		dssdev = ovl->get_device(ovl);
+
+		if (dssdev) {
+			def_display = dssdev;
 		} else {
 			dev_warn(&pdev->dev, "cannot find display\n");
 			def_display = NULL;
@@ -2253,8 +2276,10 @@ static int __init omap_vout_probe(struct platform_device *pdev)
 	for (i = 1; i < vid_dev->num_overlays; i++) {
 		def_display = NULL;
 		ovl = omap_dss_get_overlay(i);
-		if (ovl->manager && ovl->manager->device)
-			def_display = ovl->manager->device;
+		dssdev = ovl->get_device(ovl);
+
+		if (dssdev)
+			def_display = dssdev;
 
 		if (def_display && def_display->driver)
 			def_display->driver->disable(def_display);

drivers/staging/omapdrm/omap_drv.c

@@ -106,7 +106,8 @@ static void dump_video_chains(void)
 	for (i = 0; i < omap_dss_get_num_overlays(); i++) {
 		struct omap_overlay *ovl = omap_dss_get_overlay(i);
 		struct omap_overlay_manager *mgr = ovl->manager;
-		struct omap_dss_device *dssdev = mgr ? mgr->device : NULL;
+		struct omap_dss_device *dssdev = mgr ?
+					mgr->get_device(mgr) : NULL;
 		if (dssdev) {
 			DBG("%d: %s -> %s -> %s", i, ovl->name, mgr->name,
 						dssdev->name);
@@ -185,7 +186,7 @@ static int create_connector(struct drm_device *dev,
 	for (j = 0; j < priv->num_encoders; j++) {
 		struct omap_overlay_manager *mgr =
 			omap_encoder_get_manager(priv->encoders[j]);
-		if (mgr->device == dssdev) {
+		if (mgr->get_device(mgr) == dssdev) {
 			drm_mode_connector_attach_encoder(connector,
 					priv->encoders[j]);
 		}

drivers/video/omap2/dss/Makefile

 obj-$(CONFIG_OMAP2_DSS) += omapdss.o
 omapdss-y := core.o dss.o dss_features.o dispc.o dispc_coefs.o display.o \
-	manager.o manager-sysfs.o overlay.o overlay-sysfs.o apply.o
+	manager.o manager-sysfs.o overlay.o overlay-sysfs.o output.o apply.o
 omapdss-$(CONFIG_OMAP2_DSS_DPI) += dpi.o
 omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o venc_panel.o

drivers/video/omap2/dss/apply.c

@@ -421,17 +421,25 @@ static void wait_pending_extra_info_updates(void)
 int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 {
 	unsigned long timeout = msecs_to_jiffies(500);
-	struct mgr_priv_data *mp;
+	struct mgr_priv_data *mp = get_mgr_priv(mgr);
 	u32 irq;
+	unsigned long flags;
 	int r;
 	int i;
-	struct omap_dss_device *dssdev = mgr->device;
 
-	if (!dssdev || dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+	spin_lock_irqsave(&data_lock, flags);
+
+	if (mgr_manual_update(mgr)) {
+		spin_unlock_irqrestore(&data_lock, flags);
 		return 0;
+	}
 
-	if (mgr_manual_update(mgr))
+	if (!mp->enabled) {
+		spin_unlock_irqrestore(&data_lock, flags);
 		return 0;
+	}
+
+	spin_unlock_irqrestore(&data_lock, flags);
 
 	r = dispc_runtime_get();
 	if (r)
@@ -439,10 +447,8 @@ int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
 
 	irq = dispc_mgr_get_vsync_irq(mgr->id);
 
-	mp = get_mgr_priv(mgr);
 	i = 0;
 	while (1) {
-		unsigned long flags;
 		bool shadow_dirty, dirty;
 
 		spin_lock_irqsave(&data_lock, flags);
@@ -486,21 +492,30 @@ int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 {
 	unsigned long timeout = msecs_to_jiffies(500);
 	struct ovl_priv_data *op;
-	struct omap_dss_device *dssdev;
+	struct mgr_priv_data *mp;
 	u32 irq;
+	unsigned long flags;
 	int r;
 	int i;
 
 	if (!ovl->manager)
 		return 0;
 
-	dssdev = ovl->manager->device;
+	mp = get_mgr_priv(ovl->manager);
+
+	spin_lock_irqsave(&data_lock, flags);
 
-	if (!dssdev || dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
+	if (ovl_manual_update(ovl)) {
+		spin_unlock_irqrestore(&data_lock, flags);
 		return 0;
+	}
 
-	if (ovl_manual_update(ovl))
+	if (!mp->enabled) {
+		spin_unlock_irqrestore(&data_lock, flags);
 		return 0;
+	}
+
+	spin_unlock_irqrestore(&data_lock, flags);
 
 	r = dispc_runtime_get();
 	if (r)
@@ -511,7 +526,6 @@ int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
 	op = get_ovl_priv(ovl);
 	i = 0;
 	while (1) {
-		unsigned long flags;
 		bool shadow_dirty, dirty;
 
 		spin_lock_irqsave(&data_lock, flags);
@@ -1096,29 +1110,29 @@ void dss_mgr_get_info(struct omap_overlay_manager *mgr,
 	spin_unlock_irqrestore(&data_lock, flags);
 }
 
-int dss_mgr_set_device(struct omap_overlay_manager *mgr,
-		struct omap_dss_device *dssdev)
+int dss_mgr_set_output(struct omap_overlay_manager *mgr,
+		struct omap_dss_output *output)
 {
 	int r;
 
 	mutex_lock(&apply_lock);
 
-	if (dssdev->manager) {
-		DSSERR("display '%s' already has a manager '%s'\n",
-			       dssdev->name, dssdev->manager->name);
+	if (mgr->output) {
+		DSSERR("manager %s is already connected to an output\n",
+			mgr->name);
 		r = -EINVAL;
 		goto err;
 	}
 
-	if ((mgr->supported_displays & dssdev->type) == 0) {
-		DSSERR("display '%s' does not support manager '%s'\n",
-			       dssdev->name, mgr->name);
+	if ((mgr->supported_outputs & output->id) == 0) {
+		DSSERR("output does not support manager %s\n",
+			mgr->name);
 		r = -EINVAL;
 		goto err;
 	}
 
-	dssdev->manager = mgr;
-	mgr->device = dssdev;
+	output->manager = mgr;
+	mgr->output = output;
 
 	mutex_unlock(&apply_lock);
 
@@ -1128,35 +1142,41 @@ int dss_mgr_set_device(struct omap_overlay_manager *mgr,
 	return r;
 }
 
-int dss_mgr_unset_device(struct omap_overlay_manager *mgr)
+int dss_mgr_unset_output(struct omap_overlay_manager *mgr)
 {
 	int r;
+	struct mgr_priv_data *mp = get_mgr_priv(mgr);
+	unsigned long flags;
 
 	mutex_lock(&apply_lock);
 
-	if (!mgr->device) {
-		DSSERR("failed to unset display, display not set.\n");
+	if (!mgr->output) {
+		DSSERR("failed to unset output, output not set\n");
 		r = -EINVAL;
 		goto err;
 	}
 
-	/*
-	 * Don't allow currently enabled displays to have the overlay manager
-	 * pulled out from underneath them
-	 */
-	if (mgr->device->state != OMAP_DSS_DISPLAY_DISABLED) {
+	spin_lock_irqsave(&data_lock, flags);
+
+	if (mp->enabled) {
+		DSSERR("output can't be unset when manager is enabled\n");
 		r = -EINVAL;
-		goto err;
+		goto err1;
 	}
 
-	mgr->device->manager = NULL;
-	mgr->device = NULL;
+	spin_unlock_irqrestore(&data_lock, flags);
+
+	mgr->output->manager = NULL;
+	mgr->output = NULL;
 
 	mutex_unlock(&apply_lock);
 
 	return 0;
+err1:
+	spin_unlock_irqrestore(&data_lock, flags);
 err:
 	mutex_unlock(&apply_lock);
+
 	return r;
 }
 
@@ -1380,7 +1400,7 @@ int dss_ovl_enable(struct omap_overlay *ovl)
 		goto err1;
 	}
 
-	if (ovl->manager == NULL || ovl->manager->device == NULL) {
+	if (ovl->manager == NULL || ovl->manager->output == NULL) {
 		r = -EINVAL;
 		goto err1;
 	}
@@ -1430,7 +1450,7 @@ int dss_ovl_disable(struct omap_overlay *ovl)
 		goto err;
 	}
 
-	if (ovl->manager == NULL || ovl->manager->device == NULL) {
+	if (ovl->manager == NULL || ovl->manager->output == NULL) {
 		r = -EINVAL;
 		goto err;
 	}

drivers/video/omap2/dss/dispc.c

@@ -3595,7 +3595,7 @@ static void dispc_error_worker(struct work_struct *work)
 		bit = mgr_desc[i].sync_lost_irq;
 
 		if (bit & errors) {
-			struct omap_dss_device *dssdev = mgr->device;
+			struct omap_dss_device *dssdev = mgr->get_device(mgr);
 			bool enable;
 
 			DSSERR("SYNC_LOST on channel %s, restarting the output "
@@ -3626,9 +3626,13 @@ static void dispc_error_worker(struct work_struct *work)
 		DSSERR("OCP_ERR\n");
 		for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
 			struct omap_overlay_manager *mgr;
+			struct omap_dss_device *dssdev;
+
 			mgr = omap_dss_get_overlay_manager(i);
-			if (mgr->device && mgr->device->driver)
-				mgr->device->driver->disable(mgr->device);
+			dssdev = mgr->get_device(mgr);
+
+			if (dssdev && dssdev->driver)
+				dssdev->driver->disable(dssdev);
 		}
 	}
 

drivers/video/omap2/dss/display.c

@@ -327,22 +327,35 @@ EXPORT_SYMBOL(omapdss_default_get_timings);
  */
 static int dss_init_connections(struct omap_dss_device *dssdev, bool force)
 {
+	struct omap_dss_output *out;
 	struct omap_overlay_manager *mgr;
 	int i, r;
 
-	WARN_ON(dssdev->manager);
+	out = omapdss_get_output_from_dssdev(dssdev);
+
+	WARN_ON(dssdev->output);
+	WARN_ON(out->device);
+
+	r = omapdss_output_set_device(out, dssdev);
+	if (r) {
+		DSSERR("failed to connect output to new device\n");
+		return r;
+	}
 
 	mgr = omap_dss_get_overlay_manager(dssdev->channel);
 
-	if (mgr->device && !force)
+	if (mgr->output && !force)
 		return 0;
 
-	if (mgr->device)
-		mgr->unset_device(mgr);
+	if (mgr->output)
+		mgr->unset_output(mgr);
 
-	r = mgr->set_device(mgr, dssdev);
+	r = mgr->set_output(mgr, out);
 	if (r) {
-		DSSERR("failed to set initial manager\n");
+		DSSERR("failed to connect manager to output of new device\n");
+
+		/* remove the output-device connection we just made */
+		omapdss_output_unset_device(out);
 		return r;
 	}
 
@@ -366,8 +379,14 @@ static int dss_init_connections(struct omap_dss_device *dssdev, bool force)
 
 static void dss_uninit_connections(struct omap_dss_device *dssdev)
 {
-	if (dssdev->manager)
-		dssdev->manager->unset_device(dssdev->manager);
+	if (dssdev->output) {
+		struct omap_overlay_manager *mgr = dssdev->output->manager;
+
+		if (mgr)
+			mgr->unset_output(mgr);
+
+		omapdss_output_unset_device(dssdev->output);
+	}
 }
 
 int dss_init_device(struct platform_device *pdev,

drivers/video/omap2/dss/dpi.c

@@ -44,6 +44,8 @@ static struct {
 	struct omap_video_timings timings;
 	struct dss_lcd_mgr_config mgr_config;
 	int data_lines;
+
+	struct omap_dss_output output;
 } dpi;
 
 static struct platform_device *dpi_get_dsidev(enum omap_dss_clk_source clk)
@@ -126,6 +128,7 @@ static int dpi_set_dispc_clk(struct omap_dss_device *dssdev,
 static int dpi_set_mode(struct omap_dss_device *dssdev)
 {
 	struct omap_video_timings *t = &dpi.timings;
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
 	int lck_div = 0, pck_div = 0;
 	unsigned long fck = 0;
 	unsigned long pck;
@@ -150,13 +153,15 @@ static int dpi_set_mode(struct omap_dss_device *dssdev)
 		t->pixel_clock = pck;
 	}
 
-	dss_mgr_set_timings(dssdev->manager, t);
+	dss_mgr_set_timings(mgr, t);
 
 	return 0;
 }
 
 static void dpi_config_lcd_manager(struct omap_dss_device *dssdev)
 {
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
+
 	dpi.mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS;
 
 	dpi.mgr_config.stallmode = false;
@@ -166,11 +171,12 @@ static void dpi_config_lcd_manager(struct omap_dss_device *dssdev)
 
 	dpi.mgr_config.lcden_sig_polarity = 0;
 
-	dss_mgr_set_lcd_config(dssdev->manager, &dpi.mgr_config);
+	dss_mgr_set_lcd_config(mgr, &dpi.mgr_config);
 }
 
 int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
 {
+	struct omap_dss_output *out = dssdev->output;
 	int r;
 
 	mutex_lock(&dpi.lock);
@@ -181,10 +187,10 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
 		goto err_no_reg;
 	}
 
-	if (dssdev->manager == NULL) {
-		DSSERR("failed to enable display: no manager\n");
+	if (out == NULL || out->manager == NULL) {
+		DSSERR("failed to enable display: no output/manager\n");
 		r = -ENODEV;
-		goto err_no_mgr;
+		goto err_no_out_mgr;
 	}
 
 	r = omap_dss_start_device(dssdev);
@@ -225,7 +231,7 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
 
 	mdelay(2);
 
-	r = dss_mgr_enable(dssdev->manager);
+	r = dss_mgr_enable(out->manager);
 	if (r)
 		goto err_mgr_enable;
 
@@ -249,7 +255,7 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
 err_reg_enable:
 	omap_dss_stop_device(dssdev);
 err_start_dev:
-err_no_mgr:
+err_no_out_mgr:
 err_no_reg:
 	mutex_unlock(&dpi.lock);
 	return r;
@@ -258,9 +264,11 @@ EXPORT_SYMBOL(omapdss_dpi_display_enable);
 
 void omapdss_dpi_display_disable(struct omap_dss_device *dssdev)
 {
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
+
 	mutex_lock(&dpi.lock);
 
-	dss_mgr_disable(dssdev->manager);
+	dss_mgr_disable(mgr);
 
 	if (dpi_use_dsi_pll(dssdev)) {
 		dss_select_dispc_clk_source(OMAP_DSS_CLK_SRC_FCK);
@@ -296,12 +304,13 @@ int dpi_check_timings(struct omap_dss_device *dssdev,
 			struct omap_video_timings *timings)
 {
 	int r;
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
 	int lck_div, pck_div;
 	unsigned long fck;
 	unsigned long pck;
 	struct dispc_clock_info dispc_cinfo;
 
-	if (dss_mgr_check_timings(dssdev->manager, timings))
+	if (dss_mgr_check_timings(mgr, timings))
 		return -EINVAL;
 
 	if (timings->pixel_clock == 0)
@@ -436,10 +445,30 @@ static void __init dpi_probe_pdata(struct platform_device *dpidev)
 	}
 }
 
+static void __init dpi_init_output(struct platform_device *pdev)
+{
+	struct omap_dss_output *out = &dpi.output;
+
+	out->pdev = pdev;
+	out->id = OMAP_DSS_OUTPUT_DPI;
+	out->type = OMAP_DISPLAY_TYPE_DPI;
+
+	dss_register_output(out);
+}
+
+static void __exit dpi_uninit_output(struct platform_device *pdev)
+{
+	struct omap_dss_output *out = &dpi.output;
+
+	dss_unregister_output(out);
+}
+
 static int __init omap_dpi_probe(struct platform_device *pdev)
 {
 	mutex_init(&dpi.lock);
 
+	dpi_init_output(pdev);
+
 	dpi_probe_pdata(pdev);
 
 	return 0;
@@ -449,6 +478,8 @@ static int __exit omap_dpi_remove(struct platform_device *pdev)
 {
 	dss_unregister_child_devices(&pdev->dev);
 
+	dpi_uninit_output(pdev);
+
 	return 0;
 }
 

drivers/video/omap2/dss/dss.h

@@ -209,6 +209,9 @@ void dss_mgr_get_info(struct omap_overlay_manager *mgr,
 int dss_mgr_set_device(struct omap_overlay_manager *mgr,
 		struct omap_dss_device *dssdev);
 int dss_mgr_unset_device(struct omap_overlay_manager *mgr);
+int dss_mgr_set_output(struct omap_overlay_manager *mgr,
+		struct omap_dss_output *output);
+int dss_mgr_unset_output(struct omap_overlay_manager *mgr);
 void dss_mgr_set_timings(struct omap_overlay_manager *mgr,
 		const struct omap_video_timings *timings);
 void dss_mgr_set_lcd_config(struct omap_overlay_manager *mgr,
@@ -226,6 +229,11 @@ int dss_ovl_set_manager(struct omap_overlay *ovl,
 		struct omap_overlay_manager *mgr);
 int dss_ovl_unset_manager(struct omap_overlay *ovl);
 
+/* output */
+void dss_register_output(struct omap_dss_output *out);
+void dss_unregister_output(struct omap_dss_output *out);
+struct omap_dss_output *omapdss_get_output_from_dssdev(struct omap_dss_device *dssdev);
+
 /* display */
 int dss_suspend_all_devices(void);
 int dss_resume_all_devices(void);

drivers/video/omap2/dss/dss_features.c

@@ -47,6 +47,7 @@ struct omap_dss_features {
 	const int num_mgrs;
 	const int num_ovls;
 	const enum omap_display_type *supported_displays;
+	const enum omap_dss_output_id *supported_outputs;
 	const enum omap_color_mode *supported_color_modes;
 	const enum omap_overlay_caps *overlay_caps;
 	const char * const *clksrc_names;
@@ -172,6 +173,63 @@ static const enum omap_display_type omap5_dss_supported_displays[] = {
 	OMAP_DISPLAY_TYPE_DSI,
 };
 
+static const enum omap_dss_output_id omap2_dss_supported_outputs[] = {
+	/* OMAP_DSS_CHANNEL_LCD */
+	OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI,
+
+	/* OMAP_DSS_CHANNEL_DIGIT */
+	OMAP_DSS_OUTPUT_VENC,
+};
+
+static const enum omap_dss_output_id omap3430_dss_supported_outputs[] = {
+	/* OMAP_DSS_CHANNEL_LCD */
+	OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
+	OMAP_DSS_OUTPUT_SDI | OMAP_DSS_OUTPUT_DSI1,
+
+	/* OMAP_DSS_CHANNEL_DIGIT */
+	OMAP_DSS_OUTPUT_VENC,
+};
+
+static const enum omap_dss_output_id omap3630_dss_supported_outputs[] = {
+	/* OMAP_DSS_CHANNEL_LCD */
+	OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
+	OMAP_DSS_OUTPUT_DSI1,
+
+	/* OMAP_DSS_CHANNEL_DIGIT */
+	OMAP_DSS_OUTPUT_VENC,
+};
+
+static const enum omap_dss_output_id omap4_dss_supported_outputs[] = {
+	/* OMAP_DSS_CHANNEL_LCD */
+	OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
+	OMAP_DSS_OUTPUT_DSI1,
+
+	/* OMAP_DSS_CHANNEL_DIGIT */
+	OMAP_DSS_OUTPUT_VENC | OMAP_DSS_OUTPUT_HDMI |
+	OMAP_DSS_OUTPUT_DPI,
+
+	/* OMAP_DSS_CHANNEL_LCD2 */
+	OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
+	OMAP_DSS_OUTPUT_DSI2,
+};
+
+static const enum omap_dss_output_id omap5_dss_supported_outputs[] = {
+	/* OMAP_DSS_CHANNEL_LCD */
+	OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
+	OMAP_DSS_OUTPUT_DSI1 | OMAP_DSS_OUTPUT_DSI2,
+
+	/* OMAP_DSS_CHANNEL_DIGIT */
+	OMAP_DSS_OUTPUT_HDMI | OMAP_DSS_OUTPUT_DPI,
+
+	/* OMAP_DSS_CHANNEL_LCD2 */
+	OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
+	OMAP_DSS_OUTPUT_DSI1,
+
+	/* OMAP_DSS_CHANNEL_LCD3 */
+	OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
+	OMAP_DSS_OUTPUT_DSI2,
+};
+
 static const enum omap_color_mode omap2_dss_supported_color_modes[] = {
 	/* OMAP_DSS_GFX */
 	OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 |
@@ -554,6 +612,7 @@ static const struct omap_dss_features omap2_dss_features = {
 	.num_mgrs = 2,
 	.num_ovls = 3,
 	.supported_displays = omap2_dss_supported_displays,
+	.supported_outputs = omap2_dss_supported_outputs,
 	.supported_color_modes = omap2_dss_supported_color_modes,
 	.overlay_caps = omap2_dss_overlay_caps,
 	.clksrc_names = omap2_dss_clk_source_names,
@@ -574,6 +633,7 @@ static const struct omap_dss_features omap3430_dss_features = {
 	.num_mgrs = 2,
 	.num_ovls = 3,
 	.supported_displays = omap3430_dss_supported_displays,
+	.supported_outputs = omap3430_dss_supported_outputs,
 	.supported_color_modes = omap3_dss_supported_color_modes,
 	.overlay_caps = omap3430_dss_overlay_caps,
 	.clksrc_names = omap3_dss_clk_source_names,
@@ -597,6 +657,7 @@ static const struct omap_dss_features am35xx_dss_features = {
 	.num_mgrs = 2,
 	.num_ovls = 3,
 	.supported_displays = omap3430_dss_supported_displays,
+	.supported_outputs = omap3430_dss_supported_outputs,
 	.supported_color_modes = omap3_dss_supported_color_modes,
 	.overlay_caps = omap3430_dss_overlay_caps,
 	.clksrc_names = omap3_dss_clk_source_names,
@@ -616,6 +677,7 @@ static const struct omap_dss_features omap3630_dss_features = {
 	.num_mgrs = 2,
 	.num_ovls = 3,
 	.supported_displays = omap3630_dss_supported_displays,
+	.supported_outputs = omap3630_dss_supported_outputs,
 	.supported_color_modes = omap3_dss_supported_color_modes,
 	.overlay_caps = omap3630_dss_overlay_caps,
 	.clksrc_names = omap3_dss_clk_source_names,
@@ -637,6 +699,7 @@ static const struct omap_dss_features omap4430_es1_0_dss_features  = {
 	.num_mgrs = 3,
 	.num_ovls = 4,
 	.supported_displays = omap4_dss_supported_displays,
+	.supported_outputs = omap4_dss_supported_outputs,
 	.supported_color_modes = omap4_dss_supported_color_modes,
 	.overlay_caps = omap4_dss_overlay_caps,
 	.clksrc_names = omap4_dss_clk_source_names,
@@ -657,6 +720,7 @@ static const struct omap_dss_features omap4430_es2_0_1_2_dss_features = {
 	.num_mgrs = 3,
 	.num_ovls = 4,
 	.supported_displays = omap4_dss_supported_displays,
+	.supported_outputs = omap4_dss_supported_outputs,
 	.supported_color_modes = omap4_dss_supported_color_modes,
 	.overlay_caps = omap4_dss_overlay_caps,
 	.clksrc_names = omap4_dss_clk_source_names,
@@ -677,6 +741,7 @@ static const struct omap_dss_features omap4_dss_features = {
 	.num_mgrs = 3,
 	.num_ovls = 4,
 	.supported_displays = omap4_dss_supported_displays,
+	.supported_outputs = omap4_dss_supported_outputs,
 	.supported_color_modes = omap4_dss_supported_color_modes,
 	.overlay_caps = omap4_dss_overlay_caps,
 	.clksrc_names = omap4_dss_clk_source_names,
@@ -697,6 +762,7 @@ static const struct omap_dss_features omap5_dss_features = {
 	.num_mgrs = 3,
 	.num_ovls = 4,
 	.supported_displays = omap5_dss_supported_displays,
+	.supported_outputs = omap5_dss_supported_outputs,
 	.supported_color_modes = omap4_dss_supported_color_modes,
 	.overlay_caps = omap4_dss_overlay_caps,
 	.clksrc_names = omap5_dss_clk_source_names,
@@ -766,6 +832,11 @@ enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel
 	return omap_current_dss_features->supported_displays[channel];
 }
 
+enum omap_dss_output_id dss_feat_get_supported_outputs(enum omap_channel channel)
+{
+	return omap_current_dss_features->supported_outputs[channel];
+}
+
 enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane)
 {
 	return omap_current_dss_features->supported_color_modes[plane];

drivers/video/omap2/dss/dss_features.h

@@ -108,6 +108,7 @@ int dss_feat_get_num_ovls(void);
 unsigned long dss_feat_get_param_min(enum dss_range_param param);
 unsigned long dss_feat_get_param_max(enum dss_range_param param);
 enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel);
+enum omap_dss_output_id dss_feat_get_supported_outputs(enum omap_channel channel);
 enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane);
 enum omap_overlay_caps dss_feat_get_overlay_caps(enum omap_plane plane);
 bool dss_feat_color_mode_supported(enum omap_plane plane,

drivers/video/omap2/dss/hdmi.c

@@ -68,6 +68,8 @@ static struct {
 	int ct_cp_hpd_gpio;
 	int ls_oe_gpio;
 	int hpd_gpio;
+
+	struct omap_dss_output output;
 } hdmi;
 
 /*
@@ -502,6 +504,7 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)
 {
 	int r;
 	struct omap_video_timings *p;
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
 	unsigned long phy;
 
 	gpio_set_value(hdmi.ct_cp_hpd_gpio, 1);
@@ -518,7 +521,7 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)
 	if (r)
 		goto err_runtime_get;
 
-	dss_mgr_disable(dssdev->manager);
+	dss_mgr_disable(mgr);
 
 	p = &hdmi.ip_data.cfg.timings;
 
@@ -560,13 +563,13 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)
 	dispc_enable_gamma_table(0);
 
 	/* tv size */
-	dss_mgr_set_timings(dssdev->manager, p);
+	dss_mgr_set_timings(mgr, p);
 
 	r = hdmi.ip_data.ops->video_enable(&hdmi.ip_data);
 	if (r)
 		goto err_vid_enable;
 
-	r = dss_mgr_enable(dssdev->manager);
+	r = dss_mgr_enable(mgr);
 	if (r)
 		goto err_mgr_enable;
 
@@ -590,7 +593,9 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)
 
 static void hdmi_power_off(struct omap_dss_device *dssdev)
 {
-	dss_mgr_disable(dssdev->manager);
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
+
+	dss_mgr_disable(mgr);
 
 	hdmi.ip_data.ops->video_disable(&hdmi.ip_data);
 	hdmi.ip_data.ops->phy_disable(&hdmi.ip_data);
@@ -687,14 +692,15 @@ bool omapdss_hdmi_detect(void)
 
 int omapdss_hdmi_display_enable(struct omap_dss_device *dssdev)
 {
+	struct omap_dss_output *out = dssdev->output;
 	int r = 0;
 
 	DSSDBG("ENTER hdmi_display_enable\n");
 
 	mutex_lock(&hdmi.lock);
 
-	if (dssdev->manager == NULL) {
-		DSSERR("failed to enable display: no manager\n");
+	if (out == NULL || out->manager == NULL) {
+		DSSERR("failed to enable display: no output/manager\n");
 		r = -ENODEV;
 		goto err0;
 	}
@@ -970,6 +976,24 @@ static void __init hdmi_probe_pdata(struct platform_device *pdev)
 	}
 }
 
+static void __init hdmi_init_output(struct platform_device *pdev)
+{
+	struct omap_dss_output *out = &hdmi.output;
+
+	out->pdev = pdev;
+	out->id = OMAP_DSS_OUTPUT_HDMI;
+	out->type = OMAP_DISPLAY_TYPE_HDMI;
+
+	dss_register_output(out);
+}
+
+static void __exit hdmi_uninit_output(struct platform_device *pdev)
+{
+	struct omap_dss_output *out = &hdmi.output;
+
+	dss_unregister_output(out);
+}
+
 /* HDMI HW IP initialisation */
 static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
 {
@@ -1013,6 +1037,8 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
 
 	dss_debugfs_create_file("hdmi", hdmi_dump_regs);
 
+	hdmi_init_output(pdev);
+
 	hdmi_probe_pdata(pdev);
 
 	return 0;
@@ -1033,6 +1059,8 @@ static int __exit omapdss_hdmihw_remove(struct platform_device *pdev)
 
 	hdmi_panel_exit();
 
+	hdmi_uninit_output(pdev);
+
 	pm_runtime_disable(&pdev->dev);
 
 	hdmi_put_clocks();

drivers/video/omap2/dss/manager-sysfs.c

@@ -38,8 +38,10 @@ static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
 
 static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%s\n",
-			mgr->device ? mgr->device->name : "<none>");
+	struct omap_dss_device *dssdev = mgr->get_device(mgr);
+
+	return snprintf(buf, PAGE_SIZE, "%s\n", dssdev ?
+			dssdev->name : "<none>");
 }
 
 static ssize_t manager_display_store(struct omap_overlay_manager *mgr,
@@ -67,18 +69,29 @@ static ssize_t manager_display_store(struct omap_overlay_manager *mgr,
 	if (dssdev)
 		DSSDBG("display %s found\n", dssdev->name);
 
-	if (mgr->device) {
-		r = mgr->unset_device(mgr);
+	if (mgr->output) {
+		r = mgr->unset_output(mgr);
 		if (r) {
-			DSSERR("failed to unset display\n");
+			DSSERR("failed to unset current output\n");
 			goto put_device;
 		}
 	}
 
 	if (dssdev) {
-		r = mgr->set_device(mgr, dssdev);
+		struct omap_dss_output *out = dssdev->output;
+
+		/*
+		 * a registered device should have an output connected to it
+		 * already
+		 */
+		if (!out) {
+			DSSERR("device has no output connected to it\n");
+			goto put_device;
+		}
+
+		r = mgr->set_output(mgr, out);
 		if (r) {
-			DSSERR("failed to set manager\n");
+			DSSERR("failed to set manager output\n");
 			goto put_device;
 		}
 

drivers/video/omap2/dss/manager.c

@@ -36,9 +36,15 @@
 static int num_managers;
 static struct omap_overlay_manager *managers;
 
+static inline struct omap_dss_device *dss_mgr_get_device(struct omap_overlay_manager *mgr)
+{
+	return mgr->output ? mgr->output->device : NULL;
+}
+
 static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
 {
 	unsigned long timeout = msecs_to_jiffies(500);
+	struct omap_dss_device *dssdev = mgr->get_device(mgr);
 	u32 irq;
 	int r;
 
@@ -46,9 +52,9 @@ static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
 	if (r)
 		return r;
 
-	if (mgr->device->type == OMAP_DISPLAY_TYPE_VENC)
+	if (dssdev->type == OMAP_DISPLAY_TYPE_VENC)
 		irq = DISPC_IRQ_EVSYNC_ODD;
-	else if (mgr->device->type == OMAP_DISPLAY_TYPE_HDMI)
+	else if (dssdev->type == OMAP_DISPLAY_TYPE_HDMI)
 		irq = DISPC_IRQ_EVSYNC_EVEN;
 	else
 		irq = dispc_mgr_get_vsync_irq(mgr->id);
@@ -93,17 +99,20 @@ int dss_init_overlay_managers(struct platform_device *pdev)
 			break;
 		}
 
-		mgr->set_device = &dss_mgr_set_device;
-		mgr->unset_device = &dss_mgr_unset_device;
+		mgr->set_output = &dss_mgr_set_output;
+		mgr->unset_output = &dss_mgr_unset_output;
 		mgr->apply = &omap_dss_mgr_apply;
 		mgr->set_manager_info = &dss_mgr_set_info;
 		mgr->get_manager_info = &dss_mgr_get_info;
 		mgr->wait_for_go = &dss_mgr_wait_for_go;
 		mgr->wait_for_vsync = &dss_mgr_wait_for_vsync;
+		mgr->get_device = &dss_mgr_get_device;
 
 		mgr->caps = 0;
 		mgr->supported_displays =
 			dss_feat_get_supported_displays(mgr->id);
+		mgr->supported_outputs =
+			dss_feat_get_supported_outputs(mgr->id);
 
 		INIT_LIST_HEAD(&mgr->overlays);
 

drivers/video/omap2/dss/output.c

+/*
+ * Copyright (C) 2012 Texas Instruments Ltd
+ * Author: Archit Taneja <archit@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <video/omapdss.h>
+
+#include "dss.h"
+
+static LIST_HEAD(output_list);
+static DEFINE_MUTEX(output_lock);
+
+int omapdss_output_set_device(struct omap_dss_output *out,
+		struct omap_dss_device *dssdev)
+{
+	int r;
+
+	mutex_lock(&output_lock);
+
+	if (out->device) {
+		DSSERR("output already has device %s connected to it\n",
+			out->device->name);
+		r = -EINVAL;
+		goto err;
+	}
+
+	if (out->type != dssdev->type) {
+		DSSERR("output type and display type don't match\n");
+		r = -EINVAL;
+		goto err;
+	}
+
+	out->device = dssdev;
+	dssdev->output = out;
+
+	mutex_unlock(&output_lock);
+
+	return 0;
+err:
+	mutex_unlock(&output_lock);
+
+	return r;
+}
+EXPORT_SYMBOL(omapdss_output_set_device);
+
+int omapdss_output_unset_device(struct omap_dss_output *out)
+{
+	int r;
+
+	mutex_lock(&output_lock);
+
+	if (!out->device) {
+		DSSERR("output doesn't have a device connected to it\n");
+		r = -EINVAL;
+		goto err;
+	}
+
+	if (out->device->state != OMAP_DSS_DISPLAY_DISABLED) {
+		DSSERR("device %s is not disabled, cannot unset device\n",
+				out->device->name);
+		r = -EINVAL;
+		goto err;
+	}
+
+	out->device->output = NULL;
+	out->device = NULL;
+
+	mutex_unlock(&output_lock);
+
+	return 0;
+err:
+	mutex_unlock(&output_lock);
+
+	return r;
+}
+EXPORT_SYMBOL(omapdss_output_unset_device);
+
+void dss_register_output(struct omap_dss_output *out)
+{
+	list_add_tail(&out->list, &output_list);
+}
+
+void dss_unregister_output(struct omap_dss_output *out)
+{
+	list_del(&out->list);
+}
+
+struct omap_dss_output *omap_dss_get_output(enum omap_dss_output_id id)
+{
+	struct omap_dss_output *out;
+
+	list_for_each_entry(out, &output_list, list) {
+		if (out->id == id)
+			return out;
+	}
+
+	return NULL;
+}
+
+struct omap_dss_output *omapdss_get_output_from_dssdev(struct omap_dss_device *dssdev)
+{
+	struct omap_dss_output *out = NULL;
+	enum omap_dss_output_id id;
+
+	switch (dssdev->type) {
+	case OMAP_DISPLAY_TYPE_DPI:
+		out = omap_dss_get_output(OMAP_DSS_OUTPUT_DPI);
+		break;
+	case OMAP_DISPLAY_TYPE_DBI:
+		out = omap_dss_get_output(OMAP_DSS_OUTPUT_DBI);
+		break;
+	case OMAP_DISPLAY_TYPE_SDI:
+		out = omap_dss_get_output(OMAP_DSS_OUTPUT_SDI);
+		break;
+	case OMAP_DISPLAY_TYPE_VENC:
+		out = omap_dss_get_output(OMAP_DSS_OUTPUT_VENC);
+		break;
+	case OMAP_DISPLAY_TYPE_HDMI:
+		out = omap_dss_get_output(OMAP_DSS_OUTPUT_HDMI);
+		break;
+	case OMAP_DISPLAY_TYPE_DSI:
+		id = dssdev->phy.dsi.module == 0 ? OMAP_DSS_OUTPUT_DSI1 :
+					OMAP_DSS_OUTPUT_DSI2;
+		out = omap_dss_get_output(id);
+		break;
+	default:
+		break;
+	}
+
+	return out;
+}

drivers/video/omap2/dss/overlay.c

@@ -38,6 +38,13 @@
 static int num_overlays;
 static struct omap_overlay *overlays;
 
+static inline struct omap_dss_device *dss_ovl_get_device(struct omap_overlay *ovl)
+{
+	return ovl->manager ?
+		(ovl->manager->output ? ovl->manager->output->device : NULL) :
+		NULL;
+}
+
 int omap_dss_get_num_overlays(void)
 {
 	return num_overlays;
@@ -94,6 +101,7 @@ void dss_init_overlays(struct platform_device *pdev)
 		ovl->set_overlay_info = &dss_ovl_set_info;
 		ovl->get_overlay_info = &dss_ovl_get_info;
 		ovl->wait_for_go = &dss_mgr_wait_for_go_ovl;
+		ovl->get_device = &dss_ovl_get_device;
 
 		ovl->caps = dss_feat_get_overlay_caps(ovl->id);
 		ovl->supported_modes =

drivers/video/omap2/dss/rfbi.c

@@ -116,6 +116,8 @@ static struct {
 	int pixel_size;
 	int data_lines;
 	struct rfbi_timings intf_timings;
+
+	struct omap_dss_output output;
 } rfbi;
 
 static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val)
@@ -310,6 +312,7 @@ static int rfbi_transfer_area(struct omap_dss_device *dssdev,
 {
 	u32 l;
 	int r;
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
 	u16 width = rfbi.timings.x_res;
 	u16 height = rfbi.timings.y_res;
 
@@ -318,9 +321,9 @@ static int rfbi_transfer_area(struct omap_dss_device *dssdev,
 
 	DSSDBG("rfbi_transfer_area %dx%d\n", width, height);
 
-	dss_mgr_set_timings(dssdev->manager, &rfbi.timings);
+	dss_mgr_set_timings(mgr, &rfbi.timings);
 
-	r = dss_mgr_enable(dssdev->manager);
+	r = dss_mgr_enable(mgr);
 	if (r)
 		return r;
 
@@ -849,6 +852,7 @@ static void rfbi_dump_regs(struct seq_file *s)
 
 static void rfbi_config_lcd_manager(struct omap_dss_device *dssdev)
 {
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
 	struct dss_lcd_mgr_config mgr_config;
 
 	mgr_config.io_pad_mode = DSS_IO_PAD_MODE_RFBI;
@@ -860,7 +864,7 @@ static void rfbi_config_lcd_manager(struct omap_dss_device *dssdev)
 	mgr_config.video_port_width = rfbi.pixel_size;
 	mgr_config.lcden_sig_polarity = 0;
 
-	dss_mgr_set_lcd_config(dssdev->manager, &mgr_config);
+	dss_mgr_set_lcd_config(mgr, &mgr_config);
 
 	/*
 	 * Set rfbi.timings with default values, the x_res and y_res fields
@@ -881,15 +885,16 @@ static void rfbi_config_lcd_manager(struct omap_dss_device *dssdev)
 	rfbi.timings.de_level = OMAPDSS_SIG_ACTIVE_HIGH;
 	rfbi.timings.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES;
 
-	dss_mgr_set_timings(dssdev->manager, &rfbi.timings);
+	dss_mgr_set_timings(mgr, &rfbi.timings);
 }
 
 int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev)
 {
+	struct omap_dss_output *out = dssdev->output;
 	int r;
 
-	if (dssdev->manager == NULL) {
-		DSSERR("failed to enable display: no manager\n");
+	if (out == NULL || out->manager == NULL) {
+		DSSERR("failed to enable display: no output/manager\n");
 		return -ENODEV;
 	}
 
@@ -1002,6 +1007,24 @@ static void __init rfbi_probe_pdata(struct platform_device *rfbidev)
 	}
 }
 
+static void __init rfbi_init_output(struct platform_device *pdev)
+{
+	struct omap_dss_output *out = &rfbi.output;
+
+	out->pdev = pdev;
+	out->id = OMAP_DSS_OUTPUT_DBI;
+	out->type = OMAP_DISPLAY_TYPE_DBI;
+
+	dss_register_output(out);
+}
+
+static void __exit rfbi_uninit_output(struct platform_device *pdev)
+{
+	struct omap_dss_output *out = &rfbi.output;
+
+	dss_unregister_output(out);
+}
+
 /* RFBI HW IP initialisation */
 static int __init omap_rfbihw_probe(struct platform_device *pdev)
 {
@@ -1053,6 +1076,8 @@ static int __init omap_rfbihw_probe(struct platform_device *pdev)
 
 	dss_debugfs_create_file("rfbi", rfbi_dump_regs);
 
+	rfbi_init_output(pdev);
+
 	rfbi_probe_pdata(pdev);
 
 	return 0;
@@ -1065,7 +1090,11 @@ static int __init omap_rfbihw_probe(struct platform_device *pdev)
 static int __exit omap_rfbihw_remove(struct platform_device *pdev)
 {
 	dss_unregister_child_devices(&pdev->dev);
+
+	rfbi_uninit_output(pdev);
+
 	pm_runtime_disable(&pdev->dev);
+
 	return 0;
 }
 

drivers/video/omap2/dss/sdi.c

@@ -36,10 +36,14 @@ static struct {
 	struct dss_lcd_mgr_config mgr_config;
 	struct omap_video_timings timings;
 	int datapairs;
+
+	struct omap_dss_output output;
 } sdi;
 
 static void sdi_config_lcd_manager(struct omap_dss_device *dssdev)
 {
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
+
 	sdi.mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS;
 
 	sdi.mgr_config.stallmode = false;
@@ -48,19 +52,20 @@ static void sdi_config_lcd_manager(struct omap_dss_device *dssdev)
 	sdi.mgr_config.video_port_width = 24;
 	sdi.mgr_config.lcden_sig_polarity = 1;
 
-	dss_mgr_set_lcd_config(dssdev->manager, &sdi.mgr_config);
+	dss_mgr_set_lcd_config(mgr, &sdi.mgr_config);
 }
 
 int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
 {
+	struct omap_dss_output *out = dssdev->output;
 	struct omap_video_timings *t = &sdi.timings;
 	struct dss_clock_info dss_cinfo;
 	struct dispc_clock_info dispc_cinfo;
 	unsigned long pck;
 	int r;
 
-	if (dssdev->manager == NULL) {
-		DSSERR("failed to enable display: no manager\n");
+	if (out == NULL || out->manager == NULL) {
+		DSSERR("failed to enable display: no output/manager\n");
 		return -ENODEV;
 	}
 
@@ -99,7 +104,7 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
 	}
 
 
-	dss_mgr_set_timings(dssdev->manager, t);
+	dss_mgr_set_timings(out->manager, t);
 
 	r = dss_set_clock_div(&dss_cinfo);
 	if (r)
@@ -118,8 +123,7 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
 	 * need to care about the shadow register mechanism for pck-free. The
 	 * exact reason for this is unknown.
 	 */
-	dispc_mgr_set_clock_div(dssdev->manager->id,
-			&sdi.mgr_config.clock_info);
+	dispc_mgr_set_clock_div(out->manager->id, &sdi.mgr_config.clock_info);
 
 	dss_sdi_init(sdi.datapairs);
 	r = dss_sdi_enable();
@@ -127,7 +131,7 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
 		goto err_sdi_enable;
 	mdelay(2);
 
-	r = dss_mgr_enable(dssdev->manager);
+	r = dss_mgr_enable(out->manager);
 	if (r)
 		goto err_mgr_enable;
 
@@ -150,7 +154,9 @@ EXPORT_SYMBOL(omapdss_sdi_display_enable);
 
 void omapdss_sdi_display_disable(struct omap_dss_device *dssdev)
 {
-	dss_mgr_disable(dssdev->manager);
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
+
+	dss_mgr_disable(mgr);
 
 	dss_sdi_disable();
 
@@ -255,8 +261,28 @@ static void __init sdi_probe_pdata(struct platform_device *sdidev)
 	}
 }
 
+static void __init sdi_init_output(struct platform_device *pdev)
+{
+	struct omap_dss_output *out = &sdi.output;
+
+	out->pdev = pdev;
+	out->id = OMAP_DSS_OUTPUT_SDI;
+	out->type = OMAP_DISPLAY_TYPE_SDI;
+
+	dss_register_output(out);
+}
+
+static void __exit sdi_uninit_output(struct platform_device *pdev)
+{
+	struct omap_dss_output *out = &sdi.output;
+
+	dss_unregister_output(out);
+}
+
 static int __init omap_sdi_probe(struct platform_device *pdev)
 {
+	sdi_init_output(pdev);
+
 	sdi_probe_pdata(pdev);
 
 	return 0;
@@ -266,6 +292,8 @@ static int __exit omap_sdi_remove(struct platform_device *pdev)
 {
 	dss_unregister_child_devices(&pdev->dev);
 
+	sdi_uninit_output(pdev);
+
 	return 0;
 }
 

drivers/video/omap2/dss/venc.c

@@ -303,6 +303,8 @@ static struct {
 	struct omap_video_timings timings;
 	enum omap_dss_venc_type type;
 	bool invert_polarity;
+
+	struct omap_dss_output output;
 } venc;
 
 static inline void venc_write_reg(int idx, u32 val)
@@ -427,6 +429,7 @@ static const struct venc_config *venc_timings_to_config(
 
 static int venc_power_on(struct omap_dss_device *dssdev)
 {
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
 	u32 l;
 	int r;
 
@@ -452,13 +455,13 @@ static int venc_power_on(struct omap_dss_device *dssdev)
 
 	venc_write_reg(VENC_OUTPUT_CONTROL, l);
 
-	dss_mgr_set_timings(dssdev->manager, &venc.timings);
+	dss_mgr_set_timings(mgr, &venc.timings);
 
 	r = regulator_enable(venc.vdda_dac_reg);
 	if (r)
 		goto err1;
 
-	r = dss_mgr_enable(dssdev->manager);
+	r = dss_mgr_enable(mgr);
 	if (r)
 		goto err2;
 
@@ -477,10 +480,12 @@ static int venc_power_on(struct omap_dss_device *dssdev)
 
 static void venc_power_off(struct omap_dss_device *dssdev)
 {
+	struct omap_overlay_manager *mgr = dssdev->output->manager;
+
 	venc_write_reg(VENC_OUTPUT_CONTROL, 0);
 	dss_set_dac_pwrdn_bgz(0);
 
-	dss_mgr_disable(dssdev->manager);
+	dss_mgr_disable(mgr);
 
 	regulator_disable(venc.vdda_dac_reg);
 
@@ -495,14 +500,15 @@ unsigned long venc_get_pixel_clock(void)
 
 int omapdss_venc_display_enable(struct omap_dss_device *dssdev)
 {
+	struct omap_dss_output *out = dssdev->output;
 	int r;
 
 	DSSDBG("venc_display_enable\n");
 
 	mutex_lock(&venc.venc_lock);
 
-	if (dssdev->manager == NULL) {
-		DSSERR("Failed to enable display: no manager\n");
+	if (out == NULL || out->manager == NULL) {
+		DSSERR("Failed to enable display: no output/manager\n");
 		r = -ENODEV;
 		goto err0;
 	}
@@ -797,6 +803,24 @@ static void __init venc_probe_pdata(struct platform_device *vencdev)
 	}
 }
 
+static void __init venc_init_output(struct platform_device *pdev)
+{
+	struct omap_dss_output *out = &venc.output;
+
+	out->pdev = pdev;
+	out->id = OMAP_DSS_OUTPUT_VENC;
+	out->type = OMAP_DISPLAY_TYPE_VENC;
+
+	dss_register_output(out);
+}
+
+static void __exit venc_uninit_output(struct platform_device *pdev)
+{
+	struct omap_dss_output *out = &venc.output;
+
+	dss_unregister_output(out);
+}
+
 /* VENC HW IP initialisation */
 static int __init omap_venchw_probe(struct platform_device *pdev)
 {
@@ -844,6 +868,8 @@ static int __init omap_venchw_probe(struct platform_device *pdev)
 
 	dss_debugfs_create_file("venc", venc_dump_regs);
 
+	venc_init_output(pdev);
+
 	venc_probe_pdata(pdev);
 
 	return 0;
@@ -866,6 +892,8 @@ static int __exit omap_venchw_remove(struct platform_device *pdev)
 
 	venc_panel_exit();
 
+	venc_uninit_output(pdev);
+
 	pm_runtime_disable(&pdev->dev);
 	venc_put_clocks();
 

drivers/video/omap2/omapfb/omapfb-ioctl.c

@@ -599,6 +599,7 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 	struct omapfb_info *ofbi = FB2OFB(fbi);
 	struct omapfb2_device *fbdev = ofbi->fbdev;
 	struct omap_dss_device *display = fb2display(fbi);
+	struct omap_overlay_manager *mgr;
 
 	union {
 		struct omapfb_update_window_old	uwnd_o;
@@ -786,12 +787,14 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
 
 	case OMAPFB_WAITFORVSYNC:
 		DBG("ioctl WAITFORVSYNC\n");
-		if (!display) {
+		if (!display && !display->output && !display->output->manager) {
 			r = -EINVAL;
 			break;
 		}
 
-		r = display->manager->wait_for_vsync(display->manager);
+		mgr = display->output->manager;
+
+		r = mgr->wait_for_vsync(mgr);
 		break;
 
 	case OMAPFB_WAITFORGO:

drivers/video/omap2/omapfb/omapfb-main.c

@@ -2379,6 +2379,7 @@ static int __init omapfb_probe(struct platform_device *pdev)
 	struct omap_overlay *ovl;
 	struct omap_dss_device *def_display;
 	struct omap_dss_device *dssdev;
+	struct omap_dss_device *ovl_device;
 
 	DBG("omapfb_probe\n");
 
@@ -2452,8 +2453,9 @@ static int __init omapfb_probe(struct platform_device *pdev)
 	/* gfx overlay should be the default one. find a display
 	 * connected to that, and use it as default display */
 	ovl = omap_dss_get_overlay(0);
-	if (ovl->manager && ovl->manager->device) {
-		def_display = ovl->manager->device;
+	ovl_device = ovl->get_device(ovl);
+	if (ovl_device) {
+		def_display = ovl_device;
 	} else {
 		dev_warn(&pdev->dev, "cannot find default display\n");
 		def_display = NULL;

drivers/video/omap2/omapfb/omapfb.h

@@ -148,8 +148,9 @@ static inline struct omap_dss_device *fb2display(struct fb_info *fbi)
 
 	/* XXX: returns the display connected to first attached overlay */
 	for (i = 0; i < ofbi->num_overlays; i++) {
-		if (ofbi->overlays[i]->manager)
-			return ofbi->overlays[i]->manager->device;
+		struct omap_overlay *ovl = ofbi->overlays[i];
+
+		return ovl->get_device(ovl);
 	}
 
 	return NULL;

include/video/omapdss.h

@@ -208,6 +208,16 @@ enum omap_hdmi_flags {
 	OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP = 1 << 0,
 };
 
+enum omap_dss_output_id {
+	OMAP_DSS_OUTPUT_DPI	= 1 << 0,
+	OMAP_DSS_OUTPUT_DBI	= 1 << 1,
+	OMAP_DSS_OUTPUT_SDI	= 1 << 2,
+	OMAP_DSS_OUTPUT_DSI1	= 1 << 3,
+	OMAP_DSS_OUTPUT_DSI2	= 1 << 4,
+	OMAP_DSS_OUTPUT_VENC	= 1 << 5,
+	OMAP_DSS_OUTPUT_HDMI	= 1 << 6,
+};
+
 /* RFBI */
 
 struct rfbi_timings {
@@ -425,6 +435,8 @@ struct omap_overlay {
 			struct omap_overlay_info *info);
 
 	int (*wait_for_go)(struct omap_overlay *ovl);
+
+	struct omap_dss_device *(*get_device)(struct omap_overlay *ovl);
 };
 
 struct omap_overlay_manager_info {
@@ -449,9 +461,10 @@ struct omap_overlay_manager {
 	enum omap_overlay_manager_caps caps;
 	struct list_head overlays;
 	enum omap_display_type supported_displays;
+	enum omap_dss_output_id supported_outputs;
 
 	/* dynamic fields */
-	struct omap_dss_device *device;
+	struct omap_dss_output *output;
 
 	/*
 	 * The following functions do not block:
@@ -464,9 +477,9 @@ struct omap_overlay_manager {
 	 * interrupt context
 	 */
 
-	int (*set_device)(struct omap_overlay_manager *mgr,
-		struct omap_dss_device *dssdev);
-	int (*unset_device)(struct omap_overlay_manager *mgr);
+	int (*set_output)(struct omap_overlay_manager *mgr,
+		struct omap_dss_output *output);
+	int (*unset_output)(struct omap_overlay_manager *mgr);
 
 	int (*set_manager_info)(struct omap_overlay_manager *mgr,
 			struct omap_overlay_manager_info *info);
@@ -476,6 +489,8 @@ struct omap_overlay_manager {
 	int (*apply)(struct omap_overlay_manager *mgr);
 	int (*wait_for_go)(struct omap_overlay_manager *mgr);
 	int (*wait_for_vsync)(struct omap_overlay_manager *mgr);
+
+	struct omap_dss_device *(*get_device)(struct omap_overlay_manager *mgr);
 };
 
 /* 22 pins means 1 clk lane and 10 data lanes */
@@ -493,6 +508,24 @@ struct omap_dsi_pin_config {
 	int pins[OMAP_DSS_MAX_DSI_PINS];
 };
 
+struct omap_dss_output {
+	struct list_head list;
+
+	/* display type supported by the output */
+	enum omap_display_type type;
+
+	/* output instance */
+	enum omap_dss_output_id id;
+
+	/* output's platform device pointer */
+	struct platform_device *pdev;
+
+	/* dynamic fields */
+	struct omap_overlay_manager *manager;
+
+	struct omap_dss_device *device;
+};
+
 struct omap_dss_device {
 	struct device dev;
 
@@ -591,7 +624,7 @@ struct omap_dss_device {
 
 	enum omap_display_caps caps;
 
-	struct omap_overlay_manager *manager;
+	struct omap_dss_output *output;
 
 	enum omap_dss_display_state state;
 
@@ -702,6 +735,11 @@ struct omap_overlay_manager *omap_dss_get_overlay_manager(int num);
 int omap_dss_get_num_overlays(void);
 struct omap_overlay *omap_dss_get_overlay(int num);
 
+struct omap_dss_output *omap_dss_get_output(enum omap_dss_output_id id);
+int omapdss_output_set_device(struct omap_dss_output *out,
+		struct omap_dss_device *dssdev);
+int omapdss_output_unset_device(struct omap_dss_output *out);
+
 void omapdss_default_get_resolution(struct omap_dss_device *dssdev,
 		u16 *xres, u16 *yres);
 int omapdss_default_get_recommended_bpp(struct omap_dss_device *dssdev);