drivers/gpu/drm/exynos/exynos_ddc.c

   1 /*
   2  * Copyright (C) 2011 Samsung Electronics Co.Ltd
   3  * Authors:
   4  *      Seung-Woo Kim <sw0312.kim@samsung.com>
   5  *      Inki Dae <inki.dae@samsung.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 as published by the
   9  * Free Software Foundation;  either version 2 of the  License, or (at your
  10  * option) any later version.
  11  *
  12  */
  13
  14 #include <drm/drmP.h>
  15
  16 #include <linux/kernel.h>
  17 #include <linux/i2c.h>
  18
  19
  20 #include "exynos_drm_drv.h"
  21 #include "exynos_hdmi.h"
  22
  23 static int s5p_ddc_probe(struct i2c_client *client,
  24                         const struct i2c_device_id *dev_id)
  25 {
  26         hdmi_attach_ddc_client(client);
  27
  28         dev_info(&client->adapter->dev,
  29                 "attached %s into i2c adapter successfully\n",
  30                 client->name);
  31
  32         return 0;
  33 }
  34
  35 static int s5p_ddc_remove(struct i2c_client *client)
  36 {
  37         dev_info(&client->adapter->dev,
  38                 "detached %s from i2c adapter successfully\n",
  39                 client->name);
  40
  41         return 0;
  42 }
  43
  44 static struct i2c_device_id ddc_idtable[] = {
  45         {"s5p_ddc", 0},
  46         {"exynos5-hdmiddc", 0},
  47         { },
  48 };
  49
  50 #ifdef CONFIG_OF
  51 static struct of_device_id hdmiddc_match_types[] = {
  52         {
  53                 .compatible = "samsung,exynos5-hdmiddc",
  54         }, {
  55                 .compatible = "samsung,exynos4210-hdmiddc",
  56         }, {
  57                 /* end node */
  58         }
  59 };
  60 #endif
  61
  62 struct i2c_driver ddc_driver = {
  63         .driver = {
  64                 .name = "exynos-hdmiddc",
  65                 .owner = THIS_MODULE,
  66                 .of_match_table = of_match_ptr(hdmiddc_match_types),
  67         },
  68         .id_table       = ddc_idtable,
  69         .probe          = s5p_ddc_probe,
  70         .remove         = s5p_ddc_remove,
  71         .command                = NULL,
  72 };