diff --git a/drivers/gpu/drm/omapdrm/dss/display.c b/drivers/gpu/drm/omapdrm/dss/display.c
index 26cb59be045e..ac2e297e7e1b 100644
--- a/drivers/gpu/drm/omapdrm/dss/display.c
+++ b/drivers/gpu/drm/omapdrm/dss/display.c
@@ -87,26 +87,17 @@ int omapdss_register_display(struct omap_dss_device *dssdev)
 	int id;
 
 	/*
-	 * Note: this presumes all the displays are either using DT or non-DT,
-	 * which normally should be the case. This also presumes that all
-	 * displays either have an DT alias, or none has.
+	 * Note: this presumes that all displays either have an DT alias, or
+	 * none has.
 	 */
-
-	if (dssdev->dev->of_node) {
-		id = of_alias_get_id(dssdev->dev->of_node, "display");
-
-		if (id < 0)
-			id = disp_num_counter++;
-	} else {
+	id = of_alias_get_id(dssdev->dev->of_node, "display");
+	if (id < 0)
 		id = disp_num_counter++;
-	}
 
 	snprintf(dssdev->alias, sizeof(dssdev->alias), "display%d", id);
 
 	/* Use 'label' property for name, if it exists */
-	if (dssdev->dev->of_node)
-		of_property_read_string(dssdev->dev->of_node, "label",
-			&dssdev->name);
+	of_property_read_string(dssdev->dev->of_node, "label", &dssdev->name);
 
 	if (dssdev->name == NULL)
 		dssdev->name = dssdev->alias;
diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index 0b4f5bce4d13..835f49004bc3 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -5276,12 +5276,12 @@ static int dsi_init_pll_data(struct platform_device *dsidev)
 static int dsi_bind(struct device *dev, struct device *master, void *data)
 {
 	struct platform_device *dsidev = to_platform_device(dev);
+	const struct dsi_module_id_data *d;
 	u32 rev;
 	int r, i;
 	struct dsi_data *dsi;
 	struct resource *dsi_mem;
 	struct resource *res;
-	struct resource temp_res;
 
 	dsi = devm_kzalloc(&dsidev->dev, sizeof(*dsi), GFP_KERNEL);
 	if (!dsi)
@@ -5311,55 +5311,17 @@ static int dsi_bind(struct device *dev, struct device *master, void *data)
 	dsi->te_timer.data = 0;
 #endif
 
-	res = platform_get_resource_byname(dsidev, IORESOURCE_MEM, "proto");
-	if (!res) {
-		res = platform_get_resource(dsidev, IORESOURCE_MEM, 0);
-		if (!res) {
-			DSSERR("can't get IORESOURCE_MEM DSI\n");
-			return -EINVAL;
-		}
-
-		temp_res.start = res->start;
-		temp_res.end = temp_res.start + DSI_PROTO_SZ - 1;
-		res = &temp_res;
-	}
-
-	dsi_mem = res;
-
-	dsi->proto_base = devm_ioremap_resource(&dsidev->dev, res);
+	dsi_mem = platform_get_resource_byname(dsidev, IORESOURCE_MEM, "proto");
+	dsi->proto_base = devm_ioremap_resource(&dsidev->dev, dsi_mem);
 	if (IS_ERR(dsi->proto_base))
 		return PTR_ERR(dsi->proto_base);
 
 	res = platform_get_resource_byname(dsidev, IORESOURCE_MEM, "phy");
-	if (!res) {
-		res = platform_get_resource(dsidev, IORESOURCE_MEM, 0);
-		if (!res) {
-			DSSERR("can't get IORESOURCE_MEM DSI\n");
-			return -EINVAL;
-		}
-
-		temp_res.start = res->start + DSI_PHY_OFFSET;
-		temp_res.end = temp_res.start + DSI_PHY_SZ - 1;
-		res = &temp_res;
-	}
-
 	dsi->phy_base = devm_ioremap_resource(&dsidev->dev, res);
 	if (IS_ERR(dsi->phy_base))
 		return PTR_ERR(dsi->phy_base);
 
 	res = platform_get_resource_byname(dsidev, IORESOURCE_MEM, "pll");
-	if (!res) {
-		res = platform_get_resource(dsidev, IORESOURCE_MEM, 0);
-		if (!res) {
-			DSSERR("can't get IORESOURCE_MEM DSI\n");
-			return -EINVAL;
-		}
-
-		temp_res.start = res->start + DSI_PLL_OFFSET;
-		temp_res.end = temp_res.start + DSI_PLL_SZ - 1;
-		res = &temp_res;
-	}
-
 	dsi->pll_base = devm_ioremap_resource(&dsidev->dev, res);
 	if (IS_ERR(dsi->pll_base))
 		return PTR_ERR(dsi->pll_base);
@@ -5377,31 +5339,17 @@ static int dsi_bind(struct device *dev, struct device *master, void *data)
 		return r;
 	}
 
-	if (dsidev->dev.of_node) {
-		const struct of_device_id *match;
-		const struct dsi_module_id_data *d;
+	d = of_match_node(dsi_of_match, dsidev->dev.of_node)->data;
+	while (d->address != 0 && d->address != dsi_mem->start)
+		d++;
 
-		match = of_match_node(dsi_of_match, dsidev->dev.of_node);
-		if (!match) {
-			DSSERR("unsupported DSI module\n");
-			return -ENODEV;
-		}
-
-		d = match->data;
-
-		while (d->address != 0 && d->address != dsi_mem->start)
-			d++;
-
-		if (d->address == 0) {
-			DSSERR("unsupported DSI module\n");
-			return -ENODEV;
-		}
-
-		dsi->module_id = d->id;
-	} else {
-		dsi->module_id = dsidev->id;
+	if (d->address == 0) {
+		DSSERR("unsupported DSI module\n");
+		return -ENODEV;
 	}
 
+	dsi->module_id = d->id;
+
 	/* DSI VCs initialization */
 	for (i = 0; i < ARRAY_SIZE(dsi->vc); i++) {
 		dsi->vc[i].source = DSI_VC_SOURCE_L4;
@@ -5437,19 +5385,16 @@ static int dsi_bind(struct device *dev, struct device *master, void *data)
 
 	dsi_init_output(dsidev);
 
-	if (dsidev->dev.of_node) {
-		r = dsi_probe_of(dsidev);
-		if (r) {
-			DSSERR("Invalid DSI DT data\n");
-			goto err_probe_of;
-		}
-
-		r = of_platform_populate(dsidev->dev.of_node, NULL, NULL,
-			&dsidev->dev);
-		if (r)
-			DSSERR("Failed to populate DSI child devices: %d\n", r);
+	r = dsi_probe_of(dsidev);
+	if (r) {
+		DSSERR("Invalid DSI DT data\n");
+		goto err_probe_of;
 	}
 
+	r = of_platform_populate(dsidev->dev.of_node, NULL, NULL, &dsidev->dev);
+	if (r)
+		DSSERR("Failed to populate DSI child devices: %d\n", r);
+
 	dsi_runtime_put(dsidev);
 
 	if (dsi->module_id == 0)
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
index 87c53034c634..284b4942b9ac 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
@@ -696,11 +696,9 @@ static int hdmi4_bind(struct device *dev, struct device *master, void *data)
 	mutex_init(&hdmi.lock);
 	spin_lock_init(&hdmi.audio_playing_lock);
 
-	if (pdev->dev.of_node) {
-		r = hdmi_probe_of(pdev);
-		if (r)
-			return r;
-	}
+	r = hdmi_probe_of(pdev);
+	if (r)
+		return r;
 
 	r = hdmi_wp_init(pdev, &hdmi.wp);
 	if (r)
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5.c b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
index d13dce7e8079..441e1999d86a 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi5.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
@@ -728,11 +728,9 @@ static int hdmi5_bind(struct device *dev, struct device *master, void *data)
 	mutex_init(&hdmi.lock);
 	spin_lock_init(&hdmi.audio_playing_lock);
 
-	if (pdev->dev.of_node) {
-		r = hdmi_probe_of(pdev);
-		if (r)
-			return r;
-	}
+	r = hdmi_probe_of(pdev);
+	if (r)
+		return r;
 
 	r = hdmi_wp_init(pdev, &hdmi.wp);
 	if (r)
diff --git a/drivers/gpu/drm/omapdrm/dss/venc.c b/drivers/gpu/drm/omapdrm/dss/venc.c
index fbdc838586f9..8e836fddc390 100644
--- a/drivers/gpu/drm/omapdrm/dss/venc.c
+++ b/drivers/gpu/drm/omapdrm/dss/venc.c
@@ -643,11 +643,7 @@ static int venc_init_regulator(void)
 	if (venc.vdda_dac_reg != NULL)
 		return 0;
 
-	if (venc.pdev->dev.of_node)
-		vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda");
-	else
-		vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda_dac");
-
+	vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda");
 	if (IS_ERR(vdda_dac)) {
 		if (PTR_ERR(vdda_dac) != -EPROBE_DEFER)
 			DSSERR("can't get VDDA_DAC regulator\n");
@@ -888,12 +884,10 @@ static int venc_bind(struct device *dev, struct device *master, void *data)
 
 	venc_runtime_put();
 
-	if (pdev->dev.of_node) {
-		r = venc_probe_of(pdev);
-		if (r) {
-			DSSERR("Invalid DT data\n");
-			goto err_probe_of;
-		}
+	r = venc_probe_of(pdev);
+	if (r) {
+		DSSERR("Invalid DT data\n");
+		goto err_probe_of;
 	}
 
 	dss_debugfs_create_file("venc", venc_dump_regs);