1/* drivers/video/msm_fb/mddi_client_dummy.c
2 *
3 * Support for "dummy" mddi client devices which require no
4 * special initialization code.
5 *
6 * Copyright (C) 2007 Google Incorporated
7 *
8 * This software is licensed under the terms of the GNU General Public
9 * License version 2, as published by the Free Software Foundation, and
10 * may be copied, distributed, and modified under those terms.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 */
17
18#include <linux/device.h>
19#include <linux/slab.h>
20#include <linux/module.h>
21#include <linux/kernel.h>
22#include <linux/platform_device.h>
23
24#include <linux/platform_data/video-msm_fb.h>
25
26struct panel_info {
27	struct platform_device pdev;
28	struct msm_panel_data panel_data;
29};
30
31static int mddi_dummy_suspend(struct msm_panel_data *panel_data)
32{
33	return 0;
34}
35
36static int mddi_dummy_resume(struct msm_panel_data *panel_data)
37{
38	return 0;
39}
40
41static int mddi_dummy_blank(struct msm_panel_data *panel_data)
42{
43	return 0;
44}
45
46static int mddi_dummy_unblank(struct msm_panel_data *panel_data)
47{
48	return 0;
49}
50
51static int mddi_dummy_probe(struct platform_device *pdev)
52{
53	struct msm_mddi_client_data *client_data = pdev->dev.platform_data;
54	struct panel_info *panel =
55		devm_kzalloc(&pdev->dev, sizeof(struct panel_info), GFP_KERNEL);
56	if (!panel)
57		return -ENOMEM;
58	platform_set_drvdata(pdev, panel);
59	panel->panel_data.suspend = mddi_dummy_suspend;
60	panel->panel_data.resume = mddi_dummy_resume;
61	panel->panel_data.blank = mddi_dummy_blank;
62	panel->panel_data.unblank = mddi_dummy_unblank;
63	panel->panel_data.caps = MSMFB_CAP_PARTIAL_UPDATES;
64	panel->pdev.name = "msm_panel";
65	panel->pdev.id = pdev->id;
66	platform_device_add_resources(&panel->pdev,
67				      client_data->fb_resource, 1);
68	panel->panel_data.fb_data = client_data->private_client_data;
69	panel->pdev.dev.platform_data = &panel->panel_data;
70	return platform_device_register(&panel->pdev);
71}
72
73static struct platform_driver mddi_client_dummy = {
74	.probe = mddi_dummy_probe,
75	.driver = { .name = "mddi_c_dummy" },
76};
77
78static int __init mddi_client_dummy_init(void)
79{
80	platform_driver_register(&mddi_client_dummy);
81	return 0;
82}
83
84module_init(mddi_client_dummy_init);
85
86