Merge branch '3.15/dss-dt' into 3.15/fbdev

Merge OMAP DSS DT support

21 files changed, 938 insertions, 44 deletions

diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 78e2fc7a4840..7d4e33cba6ed 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -364,7 +364,7 @@ config FB_SA1100
 
 config FB_IMX
 	tristate "Freescale i.MX1/21/25/27 LCD support"
-	depends on FB && IMX_HAVE_PLATFORM_IMX_FB
+	depends on FB && ARCH_MXC
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
diff --git a/drivers/video/exynos/Kconfig b/drivers/video/exynos/Kconfig
index 976594d578a9..eb6f2b059821 100644
--- a/drivers/video/exynos/Kconfig
+++ b/drivers/video/exynos/Kconfig
@@ -22,7 +22,8 @@ config EXYNOS_MIPI_DSI
 
 config EXYNOS_LCD_S6E8AX0
 	bool "S6E8AX0 MIPI AMOLED LCD Driver"
-	depends on (EXYNOS_MIPI_DSI && BACKLIGHT_CLASS_DEVICE && LCD_CLASS_DEVICE)
+	depends on EXYNOS_MIPI_DSI && BACKLIGHT_CLASS_DEVICE
+	depends on (LCD_CLASS_DEVICE = y)
 	default n
 	help
 	  If you have an S6E8AX0 MIPI AMOLED LCD Panel, say Y to enable its
diff --git a/drivers/video/omap2/displays-new/connector-analog-tv.c b/drivers/video/omap2/displays-new/connector-analog-tv.c
index 27f33ef8fca1..5ee3b5505f7f 100644
--- a/drivers/video/omap2/displays-new/connector-analog-tv.c
+++ b/drivers/video/omap2/displays-new/connector-analog-tv.c
@@ -12,6 +12,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
 
 #include <video/omapdss.h>
 #include <video/omap-panel-data.h>
@@ -42,6 +43,12 @@ static const struct omap_video_timings tvc_pal_timings = {
 	.interlace	= true,
 };
 
+static const struct of_device_id tvc_of_match[];
+
+struct tvc_of_data {
+	enum omap_dss_venc_type connector_type;
+};
+
 #define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
 
 static int tvc_connect(struct omap_dss_device *dssdev)
@@ -91,8 +98,12 @@ static int tvc_enable(struct omap_dss_device *dssdev)
 
 	in->ops.atv->set_timings(in, &ddata->timings);
 
-	in->ops.atv->set_type(in, ddata->connector_type);
-	in->ops.atv->invert_vid_out_polarity(in, ddata->invert_polarity);
+	if (!ddata->dev->of_node) {
+		in->ops.atv->set_type(in, ddata->connector_type);
+
+		in->ops.atv->invert_vid_out_polarity(in,
+			ddata->invert_polarity);
+	}
 
 	r = in->ops.atv->enable(in);
 	if (r)
@@ -205,6 +216,23 @@ static int tvc_probe_pdata(struct platform_device *pdev)
 	return 0;
 }
 
+static int tvc_probe_of(struct platform_device *pdev)
+{
+	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+	struct device_node *node = pdev->dev.of_node;
+	struct omap_dss_device *in;
+
+	in = omapdss_of_find_source_for_first_ep(node);
+	if (IS_ERR(in)) {
+		dev_err(&pdev->dev, "failed to find video source\n");
+		return PTR_ERR(in);
+	}
+
+	ddata->in = in;
+
+	return 0;
+}
+
 static int tvc_probe(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata;
@@ -222,6 +250,10 @@ static int tvc_probe(struct platform_device *pdev)
 		r = tvc_probe_pdata(pdev);
 		if (r)
 			return r;
+	} else if (pdev->dev.of_node) {
+		r = tvc_probe_of(pdev);
+		if (r)
+			return r;
 	} else {
 		return -ENODEV;
 	}
@@ -263,12 +295,19 @@ static int __exit tvc_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id tvc_of_match[] = {
+	{ .compatible = "omapdss,svideo-connector", },
+	{ .compatible = "omapdss,composite-video-connector", },
+	{},
+};
+
 static struct platform_driver tvc_connector_driver = {
 	.probe	= tvc_probe,
 	.remove	= __exit_p(tvc_remove),
 	.driver	= {
 		.name	= "connector-analog-tv",
 		.owner	= THIS_MODULE,
+		.of_match_table = tvc_of_match,
 	},
 };
 
diff --git a/drivers/video/omap2/displays-new/connector-dvi.c b/drivers/video/omap2/displays-new/connector-dvi.c
index d18e4b8c0731..74de2bc50c4f 100644
--- a/drivers/video/omap2/displays-new/connector-dvi.c
+++ b/drivers/video/omap2/displays-new/connector-dvi.c
@@ -277,6 +277,37 @@ static int dvic_probe_pdata(struct platform_device *pdev)
 	return 0;
 }
 
+static int dvic_probe_of(struct platform_device *pdev)
+{
+	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+	struct device_node *node = pdev->dev.of_node;
+	struct omap_dss_device *in;
+	struct device_node *adapter_node;
+	struct i2c_adapter *adapter;
+
+	in = omapdss_of_find_source_for_first_ep(node);
+	if (IS_ERR(in)) {
+		dev_err(&pdev->dev, "failed to find video source\n");
+		return PTR_ERR(in);
+	}
+
+	ddata->in = in;
+
+	adapter_node = of_parse_phandle(node, "ddc-i2c-bus", 0);
+	if (adapter_node) {
+		adapter = of_find_i2c_adapter_by_node(adapter_node);
+		if (adapter == NULL) {
+			dev_err(&pdev->dev, "failed to parse ddc-i2c-bus\n");
+			omap_dss_put_device(ddata->in);
+			return -EPROBE_DEFER;
+		}
+
+		ddata->i2c_adapter = adapter;
+	}
+
+	return 0;
+}
+
 static int dvic_probe(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata;
@@ -293,6 +324,10 @@ static int dvic_probe(struct platform_device *pdev)
 		r = dvic_probe_pdata(pdev);
 		if (r)
 			return r;
+	} else if (pdev->dev.of_node) {
+		r = dvic_probe_of(pdev);
+		if (r)
+			return r;
 	} else {
 		return -ENODEV;
 	}
@@ -342,12 +377,20 @@ static int __exit dvic_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id dvic_of_match[] = {
+	{ .compatible = "omapdss,dvi-connector", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, dvic_of_match);
+
 static struct platform_driver dvi_connector_driver = {
 	.probe	= dvic_probe,
 	.remove	= __exit_p(dvic_remove),
 	.driver	= {
 		.name	= "connector-dvi",
 		.owner	= THIS_MODULE,
+		.of_match_table = dvic_of_match,
 	},
 };
 
diff --git a/drivers/video/omap2/displays-new/connector-hdmi.c b/drivers/video/omap2/displays-new/connector-hdmi.c
index 9393e2d6473d..29ed21b9dce5 100644
--- a/drivers/video/omap2/displays-new/connector-hdmi.c
+++ b/drivers/video/omap2/displays-new/connector-hdmi.c
@@ -12,6 +12,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
 
 #include <drm/drm_edid.h>
 
@@ -301,6 +302,23 @@ static int hdmic_probe_pdata(struct platform_device *pdev)
 	return 0;
 }
 
+static int hdmic_probe_of(struct platform_device *pdev)
+{
+	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+	struct device_node *node = pdev->dev.of_node;
+	struct omap_dss_device *in;
+
+	in = omapdss_of_find_source_for_first_ep(node);
+	if (IS_ERR(in)) {
+		dev_err(&pdev->dev, "failed to find video source\n");
+		return PTR_ERR(in);
+	}
+
+	ddata->in = in;
+
+	return 0;
+}
+
 static int hdmic_probe(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata;
@@ -318,6 +336,10 @@ static int hdmic_probe(struct platform_device *pdev)
 		r = hdmic_probe_pdata(pdev);
 		if (r)
 			return r;
+	} else if (pdev->dev.of_node) {
+		r = hdmic_probe_of(pdev);
+		if (r)
+			return r;
 	} else {
 		return -ENODEV;
 	}
@@ -359,12 +381,20 @@ static int __exit hdmic_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id hdmic_of_match[] = {
+	{ .compatible = "omapdss,hdmi-connector", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, hdmic_of_match);
+
 static struct platform_driver hdmi_connector_driver = {
 	.probe	= hdmic_probe,
 	.remove	= __exit_p(hdmic_remove),
 	.driver	= {
 		.name	= "connector-hdmi",
 		.owner	= THIS_MODULE,
+		.of_match_table = hdmic_of_match,
 	},
 };
 
diff --git a/drivers/video/omap2/displays-new/encoder-tfp410.c b/drivers/video/omap2/displays-new/encoder-tfp410.c
index 4a291e756be9..b4e9a42a79e6 100644
--- a/drivers/video/omap2/displays-new/encoder-tfp410.c
+++ b/drivers/video/omap2/displays-new/encoder-tfp410.c
@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
+#include <linux/of_gpio.h>
 
 #include <video/omapdss.h>
 #include <video/omap-panel-data.h>
@@ -82,7 +83,8 @@ static int tfp410_enable(struct omap_dss_device *dssdev)
 		return 0;
 
 	in->ops.dpi->set_timings(in, &ddata->timings);
-	in->ops.dpi->set_data_lines(in, ddata->data_lines);
+	if (ddata->data_lines)
+		in->ops.dpi->set_data_lines(in, ddata->data_lines);
 
 	r = in->ops.dpi->enable(in);
 	if (r)
@@ -179,6 +181,33 @@ static int tfp410_probe_pdata(struct platform_device *pdev)
 	return 0;
 }
 
+static int tfp410_probe_of(struct platform_device *pdev)
+{
+	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+	struct device_node *node = pdev->dev.of_node;
+	struct omap_dss_device *in;
+	int gpio;
+
+	gpio = of_get_named_gpio(node, "powerdown-gpios", 0);
+
+	if (gpio_is_valid(gpio) || gpio == -ENOENT) {
+		ddata->pd_gpio = gpio;
+	} else {
+		dev_err(&pdev->dev, "failed to parse PD gpio\n");
+		return gpio;
+	}
+
+	in = omapdss_of_find_source_for_first_ep(node);
+	if (IS_ERR(in)) {
+		dev_err(&pdev->dev, "failed to find video source\n");
+		return PTR_ERR(in);
+	}
+
+	ddata->in = in;
+
+	return 0;
+}
+
 static int tfp410_probe(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata;
@@ -195,6 +224,10 @@ static int tfp410_probe(struct platform_device *pdev)
 		r = tfp410_probe_pdata(pdev);
 		if (r)
 			return r;
+	} else if (pdev->dev.of_node) {
+		r = tfp410_probe_of(pdev);
+		if (r)
+			return r;
 	} else {
 		return -ENODEV;
 	}
@@ -251,12 +284,20 @@ static int __exit tfp410_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id tfp410_of_match[] = {
+	{ .compatible = "omapdss,ti,tfp410", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, tfp410_of_match);
+
 static struct platform_driver tfp410_driver = {
 	.probe	= tfp410_probe,
 	.remove	= __exit_p(tfp410_remove),
 	.driver	= {
 		.name	= "tfp410",
 		.owner	= THIS_MODULE,
+		.of_match_table = tfp410_of_match,
 	},
 };
 
diff --git a/drivers/video/omap2/displays-new/encoder-tpd12s015.c b/drivers/video/omap2/displays-new/encoder-tpd12s015.c
index d5c936cb217f..7e33686171e3 100644
--- a/drivers/video/omap2/displays-new/encoder-tpd12s015.c
+++ b/drivers/video/omap2/displays-new/encoder-tpd12s015.c
@@ -15,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/gpio.h>
 #include <linux/platform_device.h>
+#include <linux/of_gpio.h>
 
 #include <video/omapdss.h>
 #include <video/omap-panel-data.h>
@@ -289,6 +290,49 @@ static int tpd_probe_pdata(struct platform_device *pdev)
 	return 0;
 }
 
+static int tpd_probe_of(struct platform_device *pdev)
+{
+	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+	struct device_node *node = pdev->dev.of_node;
+	struct omap_dss_device *in;
+	int gpio;
+
+	/* CT CP HPD GPIO */
+	gpio = of_get_gpio(node, 0);
+	if (!gpio_is_valid(gpio)) {
+		dev_err(&pdev->dev, "failed to parse CT CP HPD gpio\n");
+		return gpio;
+	}
+	ddata->ct_cp_hpd_gpio = gpio;
+
+	/* LS OE GPIO */
+	gpio = of_get_gpio(node, 1);
+	if (gpio_is_valid(gpio) || gpio == -ENOENT) {
+		ddata->ls_oe_gpio = gpio;
+	} else {
+		dev_err(&pdev->dev, "failed to parse LS OE gpio\n");
+		return gpio;
+	}
+
+	/* HPD GPIO */
+	gpio = of_get_gpio(node, 2);
+	if (!gpio_is_valid(gpio)) {
+		dev_err(&pdev->dev, "failed to parse HPD gpio\n");
+		return gpio;
+	}
+	ddata->hpd_gpio = gpio;
+
+	in = omapdss_of_find_source_for_first_ep(node);
+	if (IS_ERR(in)) {
+		dev_err(&pdev->dev, "failed to find video source\n");
+		return PTR_ERR(in);
+	}
+
+	ddata->in = in;
+
+	return 0;
+}
+
 static int tpd_probe(struct platform_device *pdev)
 {
 	struct omap_dss_device *in, *dssdev;
@@ -307,6 +351,10 @@ static int tpd_probe(struct platform_device *pdev)
 		r = tpd_probe_pdata(pdev);
 		if (r)
 			return r;
+	} else if (pdev->dev.of_node) {
+		r = tpd_probe_of(pdev);
+		if (r)
+			return r;
 	} else {
 		return -ENODEV;
 	}
@@ -379,12 +427,20 @@ static int __exit tpd_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id tpd_of_match[] = {
+	{ .compatible = "omapdss,ti,tpd12s015", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, tpd_of_match);
+
 static struct platform_driver tpd_driver = {
 	.probe	= tpd_probe,
 	.remove	= __exit_p(tpd_remove),
 	.driver	= {
 		.name	= "tpd12s015",
 		.owner	= THIS_MODULE,
+		.of_match_table = tpd_of_match,
 	},
 };
 
diff --git a/drivers/video/omap2/displays-new/panel-dsi-cm.c b/drivers/video/omap2/displays-new/panel-dsi-cm.c
index f317c878a259..d6f14e8717e8 100644
--- a/drivers/video/omap2/displays-new/panel-dsi-cm.c
+++ b/drivers/video/omap2/displays-new/panel-dsi-cm.c
@@ -22,6 +22,8 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/workqueue.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
 
 #include <video/omapdss.h>
 #include <video/omap-panel-data.h>
@@ -595,10 +597,13 @@ static int dsicm_power_on(struct panel_drv_data *ddata)
 		.lp_clk_max = 10000000,
 	};
 
-	r = in->ops.dsi->configure_pins(in, &ddata->pin_config);
-	if (r) {
-		dev_err(&ddata->pdev->dev, "failed to configure DSI pins\n");
-		goto err0;
+	if (ddata->pin_config.num_pins > 0) {
+		r = in->ops.dsi->configure_pins(in, &ddata->pin_config);
+		if (r) {
+			dev_err(&ddata->pdev->dev,
+				"failed to configure DSI pins\n");
+			goto err0;
+		}
 	}
 
 	r = in->ops.dsi->set_config(in, &dsi_config);
@@ -1156,6 +1161,41 @@ static int dsicm_probe_pdata(struct platform_device *pdev)
 	return 0;
 }
 
+static int dsicm_probe_of(struct platform_device *pdev)
+{
+	struct device_node *node = pdev->dev.of_node;
+	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+	struct omap_dss_device *in;
+	int gpio;
+
+	gpio = of_get_named_gpio(node, "reset-gpios", 0);
+	if (!gpio_is_valid(gpio)) {
+		dev_err(&pdev->dev, "failed to parse reset gpio\n");
+		return gpio;
+	}
+	ddata->reset_gpio = gpio;
+
+	gpio = of_get_named_gpio(node, "te-gpios", 0);
+	if (gpio_is_valid(gpio) || gpio == -ENOENT) {
+		ddata->ext_te_gpio = gpio;
+	} else {
+		dev_err(&pdev->dev, "failed to parse TE gpio\n");
+		return gpio;
+	}
+
+	in = omapdss_of_find_source_for_first_ep(node);
+	if (IS_ERR(in)) {
+		dev_err(&pdev->dev, "failed to find video source\n");
+		return PTR_ERR(in);
+	}
+
+	ddata->in = in;
+
+	/* TODO: ulps, backlight */
+
+	return 0;
+}
+
 static int dsicm_probe(struct platform_device *pdev)
 {
 	struct backlight_properties props;
@@ -1178,6 +1218,10 @@ static int dsicm_probe(struct platform_device *pdev)
 		r = dsicm_probe_pdata(pdev);
 		if (r)
 			return r;
+	} else if (pdev->dev.of_node) {
+		r = dsicm_probe_of(pdev);
+		if (r)
+			return r;
 	} else {
 		return -ENODEV;
 	}
@@ -1320,12 +1364,20 @@ static int __exit dsicm_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id dsicm_of_match[] = {
+	{ .compatible = "omapdss,panel-dsi-cm", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, dsicm_of_match);
+
 static struct platform_driver dsicm_driver = {
 	.probe = dsicm_probe,
 	.remove = __exit_p(dsicm_remove),
 	.driver = {
 		.name = "panel-dsi-cm",
 		.owner = THIS_MODULE,
+		.of_match_table = dsicm_of_match,
 	},
 };
 
diff --git a/drivers/video/omap2/displays-new/panel-sony-acx565akm.c b/drivers/video/omap2/displays-new/panel-sony-acx565akm.c
index 27f60ad6b2ab..c7ba4d8b928a 100644
--- a/drivers/video/omap2/displays-new/panel-sony-acx565akm.c
+++ b/drivers/video/omap2/displays-new/panel-sony-acx565akm.c
@@ -30,6 +30,8 @@
 #include <linux/backlight.h>
 #include <linux/fb.h>
 #include <linux/gpio.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
 
 #include <video/omapdss.h>
 #include <video/omap-panel-data.h>
@@ -547,7 +549,9 @@ static int acx565akm_panel_power_on(struct omap_dss_device *dssdev)
 	dev_dbg(&ddata->spi->dev, "%s\n", __func__);
 
 	in->ops.sdi->set_timings(in, &ddata->videomode);
-	in->ops.sdi->set_datapairs(in, ddata->datapairs);
+
+	if (ddata->datapairs > 0)
+		in->ops.sdi->set_datapairs(in, ddata->datapairs);
 
 	r = in->ops.sdi->enable(in);
 	if (r) {
@@ -726,6 +730,22 @@ static int acx565akm_probe_pdata(struct spi_device *spi)
 	return 0;
 }
 
+static int acx565akm_probe_of(struct spi_device *spi)
+{
+	struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
+	struct device_node *np = spi->dev.of_node;
+
+	ddata->reset_gpio = of_get_named_gpio(np, "reset-gpios", 0);
+
+	ddata->in = omapdss_of_find_source_for_first_ep(np);
+	if (IS_ERR(ddata->in)) {
+		dev_err(&spi->dev, "failed to find video source\n");
+		return PTR_ERR(ddata->in);
+	}
+
+	return 0;
+}
+
 static int acx565akm_probe(struct spi_device *spi)
 {
 	struct panel_drv_data *ddata;
@@ -753,7 +773,12 @@ static int acx565akm_probe(struct spi_device *spi)
 		r = acx565akm_probe_pdata(spi);
 		if (r)
 			return r;
+	} else if (spi->dev.of_node) {
+		r = acx565akm_probe_of(spi);
+		if (r)
+			return r;
 	} else {
+		dev_err(&spi->dev, "platform data missing!\n");
 		return -ENODEV;
 	}
 
@@ -864,10 +889,16 @@ static int acx565akm_remove(struct spi_device *spi)
 	return 0;
 }
 
+static const struct of_device_id acx565akm_of_match[] = {
+	{ .compatible = "omapdss,sony,acx565akm", },
+	{},
+};
+
 static struct spi_driver acx565akm_driver = {
 	.driver = {
 		.name	= "acx565akm",
 		.owner	= THIS_MODULE,
+		.of_match_table = acx565akm_of_match,
 	},
 	.probe	= acx565akm_probe,
 	.remove	= acx565akm_remove,
diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index d3aa91bdd6a8..8aec8bda27cc 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -1,7 +1,7 @@
 obj-$(CONFIG_OMAP2_DSS) += omapdss.o
 # Core DSS files
 omapdss-y := core.o dss.o dss_features.o dispc.o dispc_coefs.o display.o \
-	output.o
+	output.o dss-of.o
 # DSS compat layer files
 omapdss-y += manager.o manager-sysfs.o overlay.o overlay-sysfs.o apply.o \
 	dispc-compat.o display-sysfs.o
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index b801be4660e9..2bbdb7ff7daf 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2149,8 +2149,8 @@ static int dispc_ovl_calc_scaling_24xx(unsigned long pclk, unsigned long lclk,
 	*five_taps = false;
 
 	do {
-		in_height = DIV_ROUND_UP(height, *decim_y);
-		in_width = DIV_ROUND_UP(width, *decim_x);
+		in_height = height / *decim_y;
+		in_width = width / *decim_x;
 		*core_clk = dispc.feat->calc_core_clk(pclk, in_width,
 				in_height, out_width, out_height, mem_to_mem);
 		error = (in_width > maxsinglelinewidth || !*core_clk ||
@@ -2188,8 +2188,8 @@ static int dispc_ovl_calc_scaling_34xx(unsigned long pclk, unsigned long lclk,
 			dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
 
 	do {
-		in_height = DIV_ROUND_UP(height, *decim_y);
-		in_width = DIV_ROUND_UP(width, *decim_x);
+		in_height = height / *decim_y;
+		in_width = width / *decim_x;
 		*five_taps = in_height > out_height;
 
 		if (in_width > maxsinglelinewidth)
@@ -2257,7 +2257,7 @@ static int dispc_ovl_calc_scaling_44xx(unsigned long pclk, unsigned long lclk,
 {
 	u16 in_width, in_width_max;
 	int decim_x_min = *decim_x;
-	u16 in_height = DIV_ROUND_UP(height, *decim_y);
+	u16 in_height = height / *decim_y;
 	const int maxsinglelinewidth =
 				dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
 	const int maxdownscale = dss_feat_get_param_max(FEAT_PARAM_DOWNSCALE);
@@ -2276,7 +2276,7 @@ static int dispc_ovl_calc_scaling_44xx(unsigned long pclk, unsigned long lclk,
 		return -EINVAL;
 
 	do {
-		in_width = DIV_ROUND_UP(width, *decim_x);
+		in_width = width / *decim_x;
 	} while (*decim_x <= *x_predecim &&
 			in_width > maxsinglelinewidth && ++*decim_x);
 
@@ -2455,8 +2455,8 @@ static int dispc_ovl_setup_common(enum omap_plane plane,
 	if (r)
 		return r;
 
-	in_width = DIV_ROUND_UP(in_width, x_predecim);
-	in_height = DIV_ROUND_UP(in_height, y_predecim);
+	in_width = in_width / x_predecim;
+	in_height = in_height / y_predecim;
 
 	if (color_mode == OMAP_DSS_COLOR_YUV2 ||
 			color_mode == OMAP_DSS_COLOR_UYVY ||
@@ -3778,12 +3778,20 @@ static const struct dev_pm_ops dispc_pm_ops = {
 	.runtime_resume = dispc_runtime_resume,
 };
 
+static const struct of_device_id dispc_of_match[] = {
+	{ .compatible = "ti,omap2-dispc", },
+	{ .compatible = "ti,omap3-dispc", },
+	{ .compatible = "ti,omap4-dispc", },
+	{},
+};
+
 static struct platform_driver omap_dispchw_driver = {
 	.remove         = __exit_p(omap_dispchw_remove),
 	.driver         = {
 		.name   = "omapdss_dispc",
 		.owner  = THIS_MODULE,
 		.pm	= &dispc_pm_ops,
+		.of_match_table = dispc_of_match,
 	},
 };
 
diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index 9f19ae22944c..2412a0dd0c13 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -26,6 +26,7 @@
 #include <linux/module.h>
 #include <linux/jiffies.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
 
 #include <video/omapdss.h>
 #include "dss.h"
@@ -133,9 +134,32 @@ static int disp_num_counter;
 int omapdss_register_display(struct omap_dss_device *dssdev)
 {
 	struct omap_dss_driver *drv = dssdev->driver;
+	int id;
 
-	snprintf(dssdev->alias, sizeof(dssdev->alias),
-			"display%d", disp_num_counter++);
+	/*
+	 * 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.
+	 */
+
+	if (dssdev->dev->of_node) {
+		id = of_alias_get_id(dssdev->dev->of_node, "display");
+
+		if (id < 0)
+			id = disp_num_counter++;
+	} else {
+		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);
+
+	if (dssdev->name == NULL)
+		dssdev->name = dssdev->alias;
 
 	if (drv && drv->get_resolution == NULL)
 		drv->get_resolution = omapdss_default_get_resolution;
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index d806fd50aa94..157921db447a 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -30,6 +30,7 @@
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
 #include <linux/string.h>
+#include <linux/of.h>
 
 #include <video/omapdss.h>
 
@@ -49,6 +50,8 @@ static struct {
 	int data_lines;
 
 	struct omap_dss_device output;
+
+	bool port_initialized;
 } dpi;
 
 static struct platform_device *dpi_get_dsidev(enum omap_channel channel)
@@ -117,7 +120,7 @@ struct dpi_clk_calc_ctx {
 	/* outputs */
 
 	struct dsi_clock_info dsi_cinfo;
-	unsigned long long fck;
+	unsigned long fck;
 	struct dispc_clock_info dispc_cinfo;
 };
 
@@ -725,3 +728,47 @@ void __exit dpi_uninit_platform_driver(void)
 {
 	platform_driver_unregister(&omap_dpi_driver);
 }
+
+int __init dpi_init_port(struct platform_device *pdev, struct device_node *port)
+{
+	struct device_node *ep;
+	u32 datalines;
+	int r;
+
+	ep = omapdss_of_get_next_endpoint(port, NULL);
+	if (!ep)
+		return 0;
+
+	r = of_property_read_u32(ep, "data-lines", &datalines);
+	if (r) {
+		DSSERR("failed to parse datalines\n");
+		goto err_datalines;
+	}
+
+	dpi.data_lines = datalines;
+
+	of_node_put(ep);
+
+	dpi.pdev = pdev;
+
+	mutex_init(&dpi.lock);
+
+	dpi_init_output(pdev);
+
+	dpi.port_initialized = true;
+
+	return 0;
+
+err_datalines:
+	of_node_put(ep);
+
+	return r;
+}
+
+void __exit dpi_uninit_port(void)
+{
+	if (!dpi.port_initialized)
+		return;
+
+	dpi_uninit_output(dpi.pdev);
+}
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 0d82f731d2f0..f3e4e468b49a 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -38,6 +38,8 @@
 #include <linux/slab.h>
 #include <linux/debugfs.h>
 #include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
 
 #include <video/omapdss.h>
 #include <video/mipi_display.h>
@@ -386,6 +388,13 @@ struct dsi_packet_sent_handler_data {
 	struct completion *completion;
 };
 
+struct dsi_module_id_data {
+	u32 address;
+	int id;
+};
+
+static const struct of_device_id dsi_of_match[];
+
 #ifdef DSI_PERF_MEASURE
 static bool dsi_perf;
 module_param(dsi_perf, bool, 0644);
@@ -1151,7 +1160,10 @@ static int dsi_regulator_init(struct platform_device *dsidev)
 	if (dsi->vdds_dsi_reg != NULL)
 		return 0;
 
-	vdds_dsi = devm_regulator_get(&dsi->pdev->dev, "vdds_dsi");
+	if (dsi->pdev->dev.of_node)
+		vdds_dsi = devm_regulator_get(&dsi->pdev->dev, "vdd");
+	else
+		vdds_dsi = devm_regulator_get(&dsi->pdev->dev, "vdds_dsi");
 
 	/* DT HACK: try VCXIO to make omapdss work for o4 sdp/panda */
 	if (IS_ERR(vdds_dsi))
@@ -5370,12 +5382,69 @@ static void dsi_uninit_output(struct platform_device *dsidev)
 	omapdss_unregister_output(out);
 }
 
+static int dsi_probe_of(struct platform_device *pdev)
+{
+	struct device_node *node = pdev->dev.of_node;
+	struct dsi_data *dsi = dsi_get_dsidrv_data(pdev);
+	struct property *prop;
+	u32 lane_arr[10];
+	int len, num_pins;
+	int r, i;
+	struct device_node *ep;
+	struct omap_dsi_pin_config pin_cfg;
+
+	ep = omapdss_of_get_first_endpoint(node);
+	if (!ep)
+		return 0;
+
+	prop = of_find_property(ep, "lanes", &len);
+	if (prop == NULL) {
+		dev_err(&pdev->dev, "failed to find lane data\n");
+		r = -EINVAL;
+		goto err;
+	}
+
+	num_pins = len / sizeof(u32);
+
+	if (num_pins < 4 || num_pins % 2 != 0 ||
+		num_pins > dsi->num_lanes_supported * 2) {
+		dev_err(&pdev->dev, "bad number of lanes\n");
+		r = -EINVAL;
+		goto err;
+	}
+
+	r = of_property_read_u32_array(ep, "lanes", lane_arr, num_pins);
+	if (r) {
+		dev_err(&pdev->dev, "failed to read lane data\n");
+		goto err;
+	}
+
+	pin_cfg.num_pins = num_pins;
+	for (i = 0; i < num_pins; ++i)
+		pin_cfg.pins[i] = (int)lane_arr[i];
+
+	r = dsi_configure_pins(&dsi->output, &pin_cfg);
+	if (r) {
+		dev_err(&pdev->dev, "failed to configure pins");
+		goto err;
+	}
+
+	of_node_put(ep);
+
+	return 0;
+
+err:
+	of_node_put(ep);
+	return r;
+}
+
 /* DSI1 HW IP initialisation */
 static int omap_dsihw_probe(struct platform_device *dsidev)
 {
 	u32 rev;
 	int r, i;
 	struct dsi_data *dsi;
+	struct resource *dsi_mem;
 	struct resource *res;
 	struct resource temp_res;
 
@@ -5383,7 +5452,6 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
 	if (!dsi)
 		return -ENOMEM;
 
-	dsi->module_id = dsidev->id;
 	dsi->pdev = dsidev;
 	dev_set_drvdata(&dsidev->dev, dsi);
 
@@ -5421,6 +5489,8 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
 		res = &temp_res;
 	}
 
+	dsi_mem = res;
+
 	dsi->proto_base = devm_ioremap(&dsidev->dev, res->start,
 		resource_size(res));
 	if (!dsi->proto_base) {
@@ -5481,6 +5551,31 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
 		return r;
 	}
 
+	if (dsidev->dev.of_node) {
+		const struct of_device_id *match;
+		const struct dsi_module_id_data *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;
+	}
+
 	/* DSI VCs initialization */
 	for (i = 0; i < ARRAY_SIZE(dsi->vc); i++) {
 		dsi->vc[i].source = DSI_VC_SOURCE_L4;
@@ -5516,6 +5611,19 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
 
 	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);
+	}
+
 	dsi_runtime_put(dsidev);
 
 	if (dsi->module_id == 0)
@@ -5529,17 +5637,31 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
 	else if (dsi->module_id == 1)
 		dss_debugfs_create_file("dsi2_irqs", dsi2_dump_irqs);
 #endif
+
 	return 0;
 
+err_probe_of:
+	dsi_uninit_output(dsidev);
+	dsi_runtime_put(dsidev);
+
 err_runtime_get:
 	pm_runtime_disable(&dsidev->dev);
 	return r;
 }
 
+static int dsi_unregister_child(struct device *dev, void *data)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	platform_device_unregister(pdev);
+	return 0;
+}
+
 static int __exit omap_dsihw_remove(struct platform_device *dsidev)
 {
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 
+	device_for_each_child(&dsidev->dev, NULL, dsi_unregister_child);
+
 	WARN_ON(dsi->scp_clk_refcount > 0);
 
 	dsi_uninit_output(dsidev);
@@ -5577,6 +5699,23 @@ static const struct dev_pm_ops dsi_pm_ops = {
 	.runtime_resume = dsi_runtime_resume,
 };
 
+static const struct dsi_module_id_data dsi_of_data_omap3[] = {
+	{ .address = 0x4804fc00, .id = 0, },
+	{ },
+};
+
+static const struct dsi_module_id_data dsi_of_data_omap4[] = {
+	{ .address = 0x58004000, .id = 0, },
+	{ .address = 0x58005000, .id = 1, },
+	{ },
+};
+
+static const struct of_device_id dsi_of_match[] = {
+	{ .compatible = "ti,omap3-dsi", .data = dsi_of_data_omap3, },
+	{ .compatible = "ti,omap4-dsi", .data = dsi_of_data_omap4, },
+	{},
+};
+
 static struct platform_driver omap_dsihw_driver = {
 	.probe		= omap_dsihw_probe,
 	.remove         = __exit_p(omap_dsihw_remove),
@@ -5584,6 +5723,7 @@ static struct platform_driver omap_dsihw_driver = {
 		.name   = "omapdss_dsi",
 		.owner  = THIS_MODULE,
 		.pm	= &dsi_pm_ops,
+		.of_match_table = dsi_of_match,
 	},
 };
 
diff --git a/drivers/video/omap2/dss/dss-of.c b/drivers/video/omap2/dss/dss-of.c
new file mode 100644
index 000000000000..a4b20aaf6142
--- /dev/null
+++ b/drivers/video/omap2/dss/dss-of.c
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2013 Texas Instruments
+ * Author: Tomi Valkeinen <tomi.valkeinen@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.
+ */
+
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/seq_file.h>
+
+#include <video/omapdss.h>
+
+struct device_node *
+omapdss_of_get_next_port(const struct device_node *parent,
+			 struct device_node *prev)
+{
+	struct device_node *port = NULL;
+
+	if (!parent)
+		return NULL;
+
+	if (!prev) {
+		struct device_node *ports;
+		/*
+		 * It's the first call, we have to find a port subnode
+		 * within this node or within an optional 'ports' node.
+		 */
+		ports = of_get_child_by_name(parent, "ports");
+		if (ports)
+			parent = ports;
+
+		port = of_get_child_by_name(parent, "port");
+
+		/* release the 'ports' node */
+		of_node_put(ports);
+	} else {
+		struct device_node *ports;
+
+		ports = of_get_parent(prev);
+		if (!ports)
+			return NULL;
+
+		do {
+			port = of_get_next_child(ports, prev);
+			if (!port) {
+				of_node_put(ports);
+				return NULL;
+			}
+			prev = port;
+		} while (of_node_cmp(port->name, "port") != 0);
+	}
+
+	return port;
+}
+EXPORT_SYMBOL_GPL(omapdss_of_get_next_port);
+
+struct device_node *
+omapdss_of_get_next_endpoint(const struct device_node *parent,
+			     struct device_node *prev)
+{
+	struct device_node *ep = NULL;
+
+	if (!parent)
+		return NULL;
+
+	do {
+		ep = of_get_next_child(parent, prev);
+		if (!ep)
+			return NULL;
+		prev = ep;
+	} while (of_node_cmp(ep->name, "endpoint") != 0);
+
+	return ep;
+}
+EXPORT_SYMBOL_GPL(omapdss_of_get_next_endpoint);
+
+static struct device_node *
+omapdss_of_get_remote_device_node(const struct device_node *node)
+{
+	struct device_node *np;
+	int i;
+
+	np = of_parse_phandle(node, "remote-endpoint", 0);
+
+	if (!np)
+		return NULL;
+
+	np = of_get_next_parent(np);
+
+	for (i = 0; i < 3 && np; ++i) {
+		struct property *prop;
+
+		prop = of_find_property(np, "compatible", NULL);
+
+		if (prop)
+			return np;
+
+		np = of_get_next_parent(np);
+	}
+
+	return NULL;
+}
+
+struct device_node *
+omapdss_of_get_first_endpoint(const struct device_node *parent)
+{
+	struct device_node *port, *ep;
+
+	port = omapdss_of_get_next_port(parent, NULL);
+
+	if (!port)
+		return NULL;
+
+	ep = omapdss_of_get_next_endpoint(port, NULL);
+
+	of_node_put(port);
+
+	return ep;
+}
+EXPORT_SYMBOL_GPL(omapdss_of_get_first_endpoint);
+
+struct omap_dss_device *
+omapdss_of_find_source_for_first_ep(struct device_node *node)
+{
+	struct device_node *ep;
+	struct device_node *src_node;
+	struct omap_dss_device *src;
+
+	ep = omapdss_of_get_first_endpoint(node);
+	if (!ep)
+		return ERR_PTR(-EINVAL);
+
+	src_node = omapdss_of_get_remote_device_node(ep);
+
+	of_node_put(ep);
+
+	if (!src_node)
+		return ERR_PTR(-EINVAL);
+
+	src = omap_dss_find_output_by_node(src_node);
+
+	of_node_put(src_node);
+
+	if (!src)
+		return ERR_PTR(-EPROBE_DEFER);
+
+	return src;
+}
+EXPORT_SYMBOL_GPL(omapdss_of_find_source_for_first_ep);
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 96e400c51001..32b4ff0606ab 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -23,6 +23,7 @@
 #define DSS_SUBSYS_NAME "DSS"
 
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/io.h>
 #include <linux/export.h>
 #include <linux/err.h>
@@ -33,6 +34,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/gfp.h>
 #include <linux/sizes.h>
+#include <linux/of.h>
 
 #include <video/omapdss.h>
 
@@ -772,6 +774,56 @@ static int __init dss_init_features(struct platform_device *pdev)
 	return 0;
 }
 
+static int dss_init_ports(struct platform_device *pdev)
+{
+	struct device_node *parent = pdev->dev.of_node;
+	struct device_node *port;
+	int r;
+
+	if (parent == NULL)
+		return 0;
+
+	port = omapdss_of_get_next_port(parent, NULL);
+	if (!port) {
+#ifdef CONFIG_OMAP2_DSS_DPI
+		dpi_init_port(pdev, parent);
+#endif
+		return 0;
+	}
+
+	do {
+		u32 reg;
+
+		r = of_property_read_u32(port, "reg", &reg);
+		if (r)
+			reg = 0;
+
+#ifdef CONFIG_OMAP2_DSS_DPI
+		if (reg == 0)
+			dpi_init_port(pdev, port);
+#endif
+
+#ifdef CONFIG_OMAP2_DSS_SDI
+		if (reg == 1)
+			sdi_init_port(pdev, port);
+#endif
+
+	} while ((port = omapdss_of_get_next_port(parent, port)) != NULL);
+
+	return 0;
+}
+
+static void dss_uninit_ports(void)
+{
+#ifdef CONFIG_OMAP2_DSS_DPI
+	dpi_uninit_port();
+#endif
+
+#ifdef CONFIG_OMAP2_DSS_SDI
+	sdi_uninit_port();
+#endif
+}
+
 /* DSS HW IP initialisation */
 static int __init omap_dsshw_probe(struct platform_device *pdev)
 {
@@ -830,6 +882,8 @@ static int __init omap_dsshw_probe(struct platform_device *pdev)
 	dss.lcd_clk_source[0] = OMAP_DSS_CLK_SRC_FCK;
 	dss.lcd_clk_source[1] = OMAP_DSS_CLK_SRC_FCK;
 
+	dss_init_ports(pdev);
+
 	rev = dss_read_reg(DSS_REVISION);
 	printk(KERN_INFO "OMAP DSS rev %d.%d\n",
 			FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
@@ -849,6 +903,8 @@ err_setup_clocks:
 
 static int __exit omap_dsshw_remove(struct platform_device *pdev)
 {
+	dss_uninit_ports();
+
 	pm_runtime_disable(&pdev->dev);
 
 	dss_put_clocks();
@@ -886,12 +942,22 @@ static const struct dev_pm_ops dss_pm_ops = {
 	.runtime_resume = dss_runtime_resume,
 };
 
+static const struct of_device_id dss_of_match[] = {
+	{ .compatible = "ti,omap2-dss", },
+	{ .compatible = "ti,omap3-dss", },
+	{ .compatible = "ti,omap4-dss", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, dss_of_match);
+
 static struct platform_driver omap_dsshw_driver = {
 	.remove         = __exit_p(omap_dsshw_remove),
 	.driver         = {
 		.name   = "omapdss_dss",
 		.owner  = THIS_MODULE,
 		.pm	= &dss_pm_ops,
+		.of_match_table = dss_of_match,
 	},
 };
 
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 570f7ed2bcbc..918fec182424 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -250,6 +250,9 @@ bool dss_div_calc(unsigned long pck, unsigned long fck_min,
 int sdi_init_platform_driver(void) __init;
 void sdi_uninit_platform_driver(void) __exit;
 
+int sdi_init_port(struct platform_device *pdev, struct device_node *port) __init;
+void sdi_uninit_port(void) __exit;
+
 /* DSI */
 
 typedef bool (*dsi_pll_calc_func)(int regn, int regm, unsigned long fint,
@@ -361,6 +364,9 @@ static inline bool dsi_pll_calc(struct platform_device *dsidev,
 int dpi_init_platform_driver(void) __init;
 void dpi_uninit_platform_driver(void) __exit;
 
+int dpi_init_port(struct platform_device *pdev, struct device_node *port) __init;
+void dpi_uninit_port(void) __exit;
+
 /* DISPC */
 int dispc_init_platform_driver(void) __init;
 void dispc_uninit_platform_driver(void) __exit;
diff --git a/drivers/video/omap2/dss/hdmi4.c b/drivers/video/omap2/dss/hdmi4.c
index 895c252ae0a8..e9c3d9e6d450 100644
--- a/drivers/video/omap2/dss/hdmi4.c
+++ b/drivers/video/omap2/dss/hdmi4.c
@@ -88,7 +88,10 @@ static int hdmi_init_regulator(void)
 	if (hdmi.vdda_hdmi_dac_reg != NULL)
 		return 0;
 
-	reg = devm_regulator_get(&hdmi.pdev->dev, "vdda_hdmi_dac");
+	if (hdmi.pdev->dev.of_node)
+		reg = devm_regulator_get(&hdmi.pdev->dev, "vdda");
+	else
+		reg = devm_regulator_get(&hdmi.pdev->dev, "vdda_hdmi_dac");
 
 	/* DT HACK: try VDAC to make omapdss work for o4 sdp/panda */
 	if (IS_ERR(reg))
@@ -680,6 +683,11 @@ static const struct dev_pm_ops hdmi_pm_ops = {
 	.runtime_resume = hdmi_runtime_resume,
 };
 
+static const struct of_device_id hdmi_of_match[] = {
+	{ .compatible = "ti,omap4-hdmi", },
+	{},
+};
+
 static struct platform_driver omapdss_hdmihw_driver = {
 	.probe		= omapdss_hdmihw_probe,
 	.remove         = __exit_p(omapdss_hdmihw_remove),
@@ -687,6 +695,7 @@ static struct platform_driver omapdss_hdmihw_driver = {
 		.name   = "omapdss_hdmi",
 		.owner  = THIS_MODULE,
 		.pm	= &hdmi_pm_ops,
+		.of_match_table = hdmi_of_match,
 	},
 };
 
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 800b2bb4ed93..911dcc9173a6 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -26,6 +26,7 @@
 #include <linux/export.h>
 #include <linux/platform_device.h>
 #include <linux/string.h>
+#include <linux/of.h>
 
 #include <video/omapdss.h>
 #include "dss.h"
@@ -41,12 +42,14 @@ static struct {
 	int datapairs;
 
 	struct omap_dss_device output;
+
+	bool port_initialized;
 } sdi;
 
 struct sdi_clk_calc_ctx {
 	unsigned long pck_min, pck_max;
 
-	unsigned long long fck;
+	unsigned long fck;
 	struct dispc_clock_info dispc_cinfo;
 };
 
@@ -386,3 +389,45 @@ void __exit sdi_uninit_platform_driver(void)
 {
 	platform_driver_unregister(&omap_sdi_driver);
 }
+
+int __init sdi_init_port(struct platform_device *pdev, struct device_node *port)
+{
+	struct device_node *ep;
+	u32 datapairs;
+	int r;
+
+	ep = omapdss_of_get_next_endpoint(port, NULL);
+	if (!ep)
+		return 0;
+
+	r = of_property_read_u32(ep, "datapairs", &datapairs);
+	if (r) {
+		DSSERR("failed to parse datapairs\n");
+		goto err_datapairs;
+	}
+
+	sdi.datapairs = datapairs;
+
+	of_node_put(ep);
+
+	sdi.pdev = pdev;
+
+	sdi_init_output(pdev);
+
+	sdi.port_initialized = true;
+
+	return 0;
+
+err_datapairs:
+	of_node_put(ep);
+
+	return r;
+}
+
+void __exit sdi_uninit_port(void)
+{
+	if (!sdi.port_initialized)
+		return;
+
+	sdi_uninit_output(sdi.pdev);
+}
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 59ade34bd536..21d81113962b 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -34,6 +34,7 @@
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
 #include <linux/pm_runtime.h>
+#include <linux/of.h>
 
 #include <video/omapdss.h>
 
@@ -636,7 +637,10 @@ static int venc_init_regulator(void)
 	if (venc.vdda_dac_reg != NULL)
 		return 0;
 
-	vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda_dac");
+	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");
 
 	if (IS_ERR(vdda_dac)) {
 		if (PTR_ERR(vdda_dac) != -EPROBE_DEFER)
@@ -805,6 +809,48 @@ static void __exit venc_uninit_output(struct platform_device *pdev)
 	omapdss_unregister_output(out);
 }
 
+static int venc_probe_of(struct platform_device *pdev)
+{
+	struct device_node *node = pdev->dev.of_node;
+	struct device_node *ep;
+	u32 channels;
+	int r;
+
+	ep = omapdss_of_get_first_endpoint(node);
+	if (!ep)
+		return 0;
+
+	venc.invert_polarity = of_property_read_bool(ep, "ti,invert-polarity");
+
+	r = of_property_read_u32(ep, "ti,channels", &channels);
+	if (r) {
+		dev_err(&pdev->dev,
+			"failed to read property 'ti,channels': %d\n", r);
+		goto err;
+	}
+
+	switch (channels) {
+	case 1:
+		venc.type = OMAP_DSS_VENC_TYPE_COMPOSITE;
+		break;
+	case 2:
+		venc.type = OMAP_DSS_VENC_TYPE_SVIDEO;
+		break;
+	default:
+		dev_err(&pdev->dev, "bad channel propert '%d'\n", channels);
+		r = -EINVAL;
+		goto err;
+	}
+
+	of_node_put(ep);
+
+	return 0;
+err:
+	of_node_put(ep);
+
+	return 0;
+}
+
 /* VENC HW IP initialisation */
 static int omap_venchw_probe(struct platform_device *pdev)
 {
@@ -846,12 +892,21 @@ static int omap_venchw_probe(struct platform_device *pdev)
 
 	venc_runtime_put();
 
+	if (pdev->dev.of_node) {
+		r = venc_probe_of(pdev);
+		if (r) {
+			DSSERR("Invalid DT data\n");
+			goto err_probe_of;
+		}
+	}
+
 	dss_debugfs_create_file("venc", venc_dump_regs);
 
 	venc_init_output(pdev);
 
 	return 0;
 
+err_probe_of:
 err_runtime_get:
 	pm_runtime_disable(&pdev->dev);
 	return r;
@@ -895,6 +950,14 @@ static const struct dev_pm_ops venc_pm_ops = {
 	.runtime_resume = venc_runtime_resume,
 };
 
+
+static const struct of_device_id venc_of_match[] = {
+	{ .compatible = "ti,omap2-venc", },
+	{ .compatible = "ti,omap3-venc", },
+	{ .compatible = "ti,omap4-venc", },
+	{},
+};
+
 static struct platform_driver omap_venchw_driver = {
 	.probe		= omap_venchw_probe,
 	.remove         = __exit_p(omap_venchw_remove),
@@ -902,6 +965,7 @@ static struct platform_driver omap_venchw_driver = {
 		.name   = "omapdss_venc",
 		.owner  = THIS_MODULE,
 		.pm	= &venc_pm_ops,
+		.of_match_table = venc_of_match,
 	},
 };
 
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 8d02f164c8c6..ec2d132c782d 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2417,6 +2417,55 @@ static int omapfb_init_connections(struct omapfb2_device *fbdev,
 	return 0;
 }
 
+static struct omap_dss_device *
+omapfb_find_default_display(struct omapfb2_device *fbdev)
+{
+	const char *def_name;
+	int i;
+
+	/*
+	 * Search with the display name from the user or the board file,
+	 * comparing to display names and aliases
+	 */
+
+	def_name = omapdss_get_default_display_name();
+
+	if (def_name) {
+		for (i = 0; i < fbdev->num_displays; ++i) {
+			struct omap_dss_device *dssdev;
+
+			dssdev = fbdev->displays[i].dssdev;
+
+			if (dssdev->name && strcmp(def_name, dssdev->name) == 0)
+				return dssdev;
+
+			if (strcmp(def_name, dssdev->alias) == 0)
+				return dssdev;
+		}
+
+		/* def_name given but not found */
+		return NULL;
+	}
+
+	/* then look for DT alias display0 */
+	for (i = 0; i < fbdev->num_displays; ++i) {
+		struct omap_dss_device *dssdev;
+		int id;
+
+		dssdev = fbdev->displays[i].dssdev;
+
+		if (dssdev->dev->of_node == NULL)
+			continue;
+
+		id = of_alias_get_id(dssdev->dev->of_node, "display");
+		if (id == 0)
+			return dssdev;
+	}
+
+	/* return the first display we have in the list */
+	return fbdev->displays[0].dssdev;
+}
+
 static int omapfb_probe(struct platform_device *pdev)
 {
 	struct omapfb2_device *fbdev = NULL;
@@ -2494,23 +2543,7 @@ static int omapfb_probe(struct platform_device *pdev)
 	for (i = 0; i < fbdev->num_managers; i++)
 		fbdev->managers[i] = omap_dss_get_overlay_manager(i);
 
-	def_display = NULL;
-
-	for (i = 0; i < fbdev->num_displays; ++i) {
-		struct omap_dss_device *dssdev;
-		const char *def_name;
-
-		def_name = omapdss_get_default_display_name();
-
-		dssdev = fbdev->displays[i].dssdev;
-
-		if (def_name == NULL ||
-			(dssdev->name && strcmp(def_name, dssdev->name) == 0)) {
-			def_display = dssdev;
-			break;
-		}
-	}
-
+	def_display = omapfb_find_default_display(fbdev);
 	if (def_display == NULL) {
 		dev_err(fbdev->dev, "failed to find default display\n");
 		r = -EPROBE_DEFER;