blob: d2a091cebe2c31f42edabb2524d7053acc5956e3 [file] [log] [blame]
Pavel Machekd480ace2009-09-22 16:47:03 -07001/* 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
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090018#include <linux/slab.h>
Pavel Machekd480ace2009-09-22 16:47:03 -070019#include <linux/module.h>
20#include <linux/kernel.h>
21#include <linux/platform_device.h>
22
23#include <mach/msm_fb.h>
24
25struct panel_info {
26 struct platform_device pdev;
27 struct msm_panel_data panel_data;
28};
29
30static int mddi_dummy_suspend(struct msm_panel_data *panel_data)
31{
32 return 0;
33}
34
35static int mddi_dummy_resume(struct msm_panel_data *panel_data)
36{
37 return 0;
38}
39
40static int mddi_dummy_blank(struct msm_panel_data *panel_data)
41{
42 return 0;
43}
44
45static int mddi_dummy_unblank(struct msm_panel_data *panel_data)
46{
47 return 0;
48}
49
50static int mddi_dummy_probe(struct platform_device *pdev)
51{
52 struct msm_mddi_client_data *client_data = pdev->dev.platform_data;
53 struct panel_info *panel =
54 kzalloc(sizeof(struct panel_info), GFP_KERNEL);
55 int ret;
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 ret = platform_device_register(&panel->pdev);
71 if (ret) {
72 kfree(panel);
73 return ret;
74 }
75 return 0;
76}
77
78static int mddi_dummy_remove(struct platform_device *pdev)
79{
80 struct panel_info *panel = platform_get_drvdata(pdev);
81 kfree(panel);
82 return 0;
83}
84
85static struct platform_driver mddi_client_dummy = {
86 .probe = mddi_dummy_probe,
87 .remove = mddi_dummy_remove,
88 .driver = { .name = "mddi_c_dummy" },
89};
90
91static int __init mddi_client_dummy_init(void)
92{
93 platform_driver_register(&mddi_client_dummy);
94 return 0;
95}
96
97module_init(mddi_client_dummy_init);
98