OMAPDSS: Add new Analog TV Connector driver

Add Analog TV Connector driver which uses the new DSS device model and
DSS ops.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

3 files changed, 271 insertions, 0 deletions

diff --git a/drivers/video/omap2/displays-new/Kconfig b/drivers/video/omap2/displays-new/Kconfig
index 9a66413959a1..532663814532 100644
--- a/drivers/video/omap2/displays-new/Kconfig
+++ b/drivers/video/omap2/displays-new/Kconfig
@@ -23,4 +23,9 @@ config DISPLAY_CONNECTOR_HDMI
         help
           Driver for a generic HDMI connector.
 
+config DISPLAY_CONNECTOR_ANALOG_TV
+        tristate "Analog TV Connector"
+        help
+          Driver for a generic analog TV connector.
+
 endmenu
diff --git a/drivers/video/omap2/displays-new/Makefile b/drivers/video/omap2/displays-new/Makefile
index 1007b5f53fbc..083bf0895573 100644
--- a/drivers/video/omap2/displays-new/Makefile
+++ b/drivers/video/omap2/displays-new/Makefile
@@ -2,3 +2,4 @@ obj-$(CONFIG_DISPLAY_ENCODER_TFP410) += encoder-tfp410.o
 obj-$(CONFIG_DISPLAY_ENCODER_TPD12S015) += encoder-tpd12s015.o
 obj-$(CONFIG_DISPLAY_CONNECTOR_DVI) += connector-dvi.o
 obj-$(CONFIG_DISPLAY_CONNECTOR_HDMI) += connector-hdmi.o
+obj-$(CONFIG_DISPLAY_CONNECTOR_ANALOG_TV) += connector-analog-tv.o
diff --git a/drivers/video/omap2/displays-new/connector-analog-tv.c b/drivers/video/omap2/displays-new/connector-analog-tv.c
new file mode 100644
index 000000000000..5338f362293b
--- /dev/null
+++ b/drivers/video/omap2/displays-new/connector-analog-tv.c
@@ -0,0 +1,265 @@
+/*
+ * Analog TV Connector driver
+ *
+ * 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.
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <video/omapdss.h>
+#include <video/omap-panel-data.h>
+
+struct panel_drv_data {
+        struct omap_dss_device dssdev;
+        struct omap_dss_device *in;
+
+        struct device *dev;
+
+        struct omap_video_timings timings;
+
+        enum omap_dss_venc_type connector_type;
+        bool invert_polarity;
+};
+
+#define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
+
+static int tvc_connect(struct omap_dss_device *dssdev)
+{
+        struct panel_drv_data *ddata = to_panel_data(dssdev);
+        struct omap_dss_device *in = ddata->in;
+        int r;
+
+        dev_dbg(ddata->dev, "connect\n");
+
+        if (omapdss_device_is_connected(dssdev))
+                return 0;
+
+        r = in->ops.atv->connect(in, dssdev);
+        if (r)
+                return r;
+
+        return 0;
+}
+
+static void tvc_disconnect(struct omap_dss_device *dssdev)
+{
+        struct panel_drv_data *ddata = to_panel_data(dssdev);
+        struct omap_dss_device *in = ddata->in;
+
+        dev_dbg(ddata->dev, "disconnect\n");
+
+        if (!omapdss_device_is_connected(dssdev))
+                return;
+
+        in->ops.atv->disconnect(in, dssdev);
+}
+
+static int tvc_enable(struct omap_dss_device *dssdev)
+{
+        struct panel_drv_data *ddata = to_panel_data(dssdev);
+        struct omap_dss_device *in = ddata->in;
+        int r;
+
+        dev_dbg(ddata->dev, "enable\n");
+
+        if (!omapdss_device_is_connected(dssdev))
+                return -ENODEV;
+
+        if (omapdss_device_is_enabled(dssdev))
+                return 0;
+
+        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);
+
+        r = in->ops.atv->enable(in);
+        if (r)
+                return r;
+
+        dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+        return r;
+}
+
+static void tvc_disable(struct omap_dss_device *dssdev)
+{
+        struct panel_drv_data *ddata = to_panel_data(dssdev);
+        struct omap_dss_device *in = ddata->in;
+
+        dev_dbg(ddata->dev, "disable\n");
+
+        if (!omapdss_device_is_enabled(dssdev))
+                return;
+
+        in->ops.atv->disable(in);
+
+        dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+}
+
+static void tvc_set_timings(struct omap_dss_device *dssdev,
+                struct omap_video_timings *timings)
+{
+        struct panel_drv_data *ddata = to_panel_data(dssdev);
+        struct omap_dss_device *in = ddata->in;
+
+        ddata->timings = *timings;
+        dssdev->panel.timings = *timings;
+
+        in->ops.atv->set_timings(in, timings);
+}
+
+static void tvc_get_timings(struct omap_dss_device *dssdev,
+                struct omap_video_timings *timings)
+{
+        struct panel_drv_data *ddata = to_panel_data(dssdev);
+
+        *timings = ddata->timings;
+}
+
+static int tvc_check_timings(struct omap_dss_device *dssdev,
+                struct omap_video_timings *timings)
+{
+        struct panel_drv_data *ddata = to_panel_data(dssdev);
+        struct omap_dss_device *in = ddata->in;
+
+        return in->ops.atv->check_timings(in, timings);
+}
+
+static u32 tvc_get_wss(struct omap_dss_device *dssdev)
+{
+        struct panel_drv_data *ddata = to_panel_data(dssdev);
+        struct omap_dss_device *in = ddata->in;
+
+        return in->ops.atv->get_wss(in);
+}
+
+static int tvc_set_wss(struct omap_dss_device *dssdev, u32 wss)
+{
+        struct panel_drv_data *ddata = to_panel_data(dssdev);
+        struct omap_dss_device *in = ddata->in;
+
+        return in->ops.atv->set_wss(in, wss);
+}
+
+static struct omap_dss_driver tvc_driver = {
+        .connect                = tvc_connect,
+        .disconnect             = tvc_disconnect,
+
+        .enable                 = tvc_enable,
+        .disable                = tvc_disable,
+
+        .set_timings            = tvc_set_timings,
+        .get_timings            = tvc_get_timings,
+        .check_timings          = tvc_check_timings,
+
+        .get_resolution         = omapdss_default_get_resolution,
+
+        .get_wss                = tvc_get_wss,
+        .set_wss                = tvc_set_wss,
+};
+
+static int tvc_probe_pdata(struct platform_device *pdev)
+{
+        struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+        struct connector_atv_platform_data *pdata;
+        struct omap_dss_device *in, *dssdev;
+
+        pdata = dev_get_platdata(&pdev->dev);
+
+        in = omap_dss_find_output(pdata->source);
+        if (in == NULL) {
+                dev_err(&pdev->dev, "Failed to find video source\n");
+                return -ENODEV;
+        }
+
+        ddata->in = in;
+
+        ddata->connector_type = pdata->connector_type;
+        ddata->invert_polarity = ddata->invert_polarity;
+
+        dssdev = &ddata->dssdev;
+        dssdev->name = pdata->name;
+
+        return 0;
+}
+
+static int tvc_probe(struct platform_device *pdev)
+{
+        struct panel_drv_data *ddata;
+        struct omap_dss_device *dssdev;
+        int r;
+
+        ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
+        if (!ddata)
+                return -ENOMEM;
+
+        platform_set_drvdata(pdev, ddata);
+        ddata->dev = &pdev->dev;
+
+        if (dev_get_platdata(&pdev->dev)) {
+                r = tvc_probe_pdata(pdev);
+                if (r)
+                        return r;
+        } else {
+                return -ENODEV;
+        }
+
+        ddata->timings = omap_dss_pal_timings;
+
+        dssdev = &ddata->dssdev;
+        dssdev->driver = &tvc_driver;
+        dssdev->dev = &pdev->dev;
+        dssdev->type = OMAP_DISPLAY_TYPE_VENC;
+        dssdev->owner = THIS_MODULE;
+        dssdev->panel.timings = omap_dss_pal_timings;
+
+        r = omapdss_register_display(dssdev);
+        if (r) {
+                dev_err(&pdev->dev, "Failed to register panel\n");
+                goto err_reg;
+        }
+
+        return 0;
+err_reg:
+        omap_dss_put_device(ddata->in);
+        return r;
+}
+
+static int __exit tvc_remove(struct platform_device *pdev)
+{
+        struct panel_drv_data *ddata = platform_get_drvdata(pdev);
+        struct omap_dss_device *dssdev = &ddata->dssdev;
+        struct omap_dss_device *in = ddata->in;
+
+        omapdss_unregister_display(&ddata->dssdev);
+
+        tvc_disable(dssdev);
+        tvc_disconnect(dssdev);
+
+        omap_dss_put_device(in);
+
+        return 0;
+}
+
+static struct platform_driver tvc_connector_driver = {
+        .probe  = tvc_probe,
+        .remove = __exit_p(tvc_remove),
+        .driver = {
+                .name   = "connector-analog-tv",
+                .owner  = THIS_MODULE,
+        },
+};
+
+module_platform_driver(tvc_connector_driver);
+
+MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
+MODULE_DESCRIPTION("Analog TV Connector driver");
+MODULE_LICENSE("GPL");