text: /* drivers/video/msm_fb/mddi_client_dummy.c
   *
   * Support for "dummy" mddi client devices which require no
   * special initialization code.
   *
   * Copyright (C) 2007 Google Incorporated
   *
   * This software is licensed under the terms of the GNU General Public
   * License version 2, as published by the Free Software Foundation, and
   * may be copied, distributed, and modified under those terms.
   *
   * 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/slab.h>
  #include <linux/module.h>
  #include <linux/kernel.h>
  #include <linux/platform_device.h>
  
  #include <linux/platform_data/video-msm_fb.h>
  
  struct panel_info {
  	struct platform_device pdev;
  	struct msm_panel_data panel_data;
  };
  
  static int mddi_dummy_suspend(struct msm_panel_data *panel_data)
  {
  	return 0;
  }
  
  static int mddi_dummy_resume(struct msm_panel_data *panel_data)
  {
  	return 0;
  }
  
  static int mddi_dummy_blank(struct msm_panel_data *panel_data)
  {
  	return 0;
  }
  
  static int mddi_dummy_unblank(struct msm_panel_data *panel_data)
  {
  	return 0;
  }
  
  static int mddi_dummy_probe(struct platform_device *pdev)
  {
  	struct msm_mddi_client_data *client_data = pdev->dev.platform_data;
  	struct panel_info *panel =
  		devm_kzalloc(&pdev->dev, sizeof(struct panel_info), GFP_KERNEL);
  	if (!panel)
  		return -ENOMEM;
  	platform_set_drvdata(pdev, panel);
  	panel->panel_data.suspend = mddi_dummy_suspend;
  	panel->panel_data.resume = mddi_dummy_resume;
  	panel->panel_data.blank = mddi_dummy_blank;
  	panel->panel_data.unblank = mddi_dummy_unblank;
  	panel->panel_data.caps = MSMFB_CAP_PARTIAL_UPDATES;
  	panel->pdev.name = "msm_panel";
  	panel->pdev.id = pdev->id;
  	platform_device_add_resources(&panel->pdev,
  				      client_data->fb_resource, 1);
  	panel->panel_data.fb_data = client_data->private_client_data;
  	panel->pdev.dev.platform_data = &panel->panel_data;
  	return platform_device_register(&panel->pdev);
  }
  
  static struct platform_driver mddi_client_dummy = {
  	.probe = mddi_dummy_probe,
  	.driver = { .name = "mddi_c_dummy" },
  };
  
  static int __init mddi_client_dummy_init(void)
  {
  	platform_driver_register(&mddi_client_dummy);
  	return 0;
  }
  
  module_init(mddi_client_dummy_init);
  
  