drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c

   1 /*
   2  * Analog TV Connector driver
   3  *
   4  * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
   5  * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License version 2 as published by
   9  * the Free Software Foundation.
  10  */
  11
  12 #include <linux/slab.h>
  13 #include <linux/module.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/of.h>
  16
  17 #include "../dss/omapdss.h"
  18
  19 struct panel_drv_data {
  20         struct omap_dss_device dssdev;
  21
  22         struct device *dev;
  23 };
  24
  25 #define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev)
  26
  27 static int tvc_connect(struct omap_dss_device *src,
  28                        struct omap_dss_device *dst)
  29 {
  30         return 0;
  31 }
  32
  33 static void tvc_disconnect(struct omap_dss_device *src,
  34                            struct omap_dss_device *dst)
  35 {
  36 }
  37
  38 static const struct omap_dss_device_ops tvc_ops = {
  39         .connect                = tvc_connect,
  40         .disconnect             = tvc_disconnect,
  41 };
  42
  43 static int tvc_probe(struct platform_device *pdev)
  44 {
  45         struct panel_drv_data *ddata;
  46         struct omap_dss_device *dssdev;
  47
  48         ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
  49         if (!ddata)
  50                 return -ENOMEM;
  51
  52         platform_set_drvdata(pdev, ddata);
  53         ddata->dev = &pdev->dev;
  54
  55         dssdev = &ddata->dssdev;
  56         dssdev->ops = &tvc_ops;
  57         dssdev->dev = &pdev->dev;
  58         dssdev->type = OMAP_DISPLAY_TYPE_VENC;
  59         dssdev->display = true;
  60         dssdev->owner = THIS_MODULE;
  61         dssdev->of_ports = BIT(0);
  62
  63         omapdss_display_init(dssdev);
  64         omapdss_device_register(dssdev);
  65
  66         return 0;
  67 }
  68
  69 static int __exit tvc_remove(struct platform_device *pdev)
  70 {
  71         struct panel_drv_data *ddata = platform_get_drvdata(pdev);
  72
  73         omapdss_device_unregister(&ddata->dssdev);
  74
  75         return 0;
  76 }
  77
  78 static const struct of_device_id tvc_of_match[] = {
  79         { .compatible = "omapdss,svideo-connector", },
  80         { .compatible = "omapdss,composite-video-connector", },
  81         {},
  82 };
  83
  84 MODULE_DEVICE_TABLE(of, tvc_of_match);
  85
  86 static struct platform_driver tvc_connector_driver = {
  87         .probe  = tvc_probe,
  88         .remove = __exit_p(tvc_remove),
  89         .driver = {
  90                 .name   = "connector-analog-tv",
  91                 .of_match_table = tvc_of_match,
  92                 .suppress_bind_attrs = true,
  93         },
  94 };
  95
  96 module_platform_driver(tvc_connector_driver);
  97
  98 MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
  99 MODULE_DESCRIPTION("Analog TV Connector driver");
 100 MODULE_LICENSE("GPL");