projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| d480ace0 PM |
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/module.h> | |
| 19 | #include <linux/kernel.h> | |
| 20 | #include <linux/platform_device.h> | |
| 21 | ||
| 22 | #include <mach/msm_fb.h> | |
| 23 | ||
| 24 | struct panel_info { | |
| 25 | struct platform_device pdev; | |
| 26 | struct msm_panel_data panel_data; | |
| 27 | }; | |
| 28 | ||
| 29 | static int mddi_dummy_suspend(struct msm_panel_data *panel_data) | |
| 30 | { | |
| 31 | return 0; | |
| 32 | } | |
| 33 | ||
| 34 | static int mddi_dummy_resume(struct msm_panel_data *panel_data) | |
| 35 | { | |
| 36 | return 0; | |
| 37 | } | |
| 38 | ||
| 39 | static int mddi_dummy_blank(struct msm_panel_data *panel_data) | |
| 40 | { | |
| 41 | return 0; | |
| 42 | } | |
| 43 | ||
| 44 | static int mddi_dummy_unblank(struct msm_panel_data *panel_data) | |
| 45 | { | |
| 46 | return 0; | |
| 47 | } | |
| 48 | ||
| 49 | static int mddi_dummy_probe(struct platform_device *pdev) | |
| 50 | { | |
| 51 | struct msm_mddi_client_data *client_data = pdev->dev.platform_data; | |
| 52 | struct panel_info *panel = | |
| 53 | kzalloc(sizeof(struct panel_info), GFP_KERNEL); | |
| 54 | int ret; | |
| 55 | if (!panel) | |
| 56 | return -ENOMEM; | |
| 57 | platform_set_drvdata(pdev, panel); | |
| 58 | panel->panel_data.suspend = mddi_dummy_suspend; | |
| 59 | panel->panel_data.resume = mddi_dummy_resume; | |
| 60 | panel->panel_data.blank = mddi_dummy_blank; | |
| 61 | panel->panel_data.unblank = mddi_dummy_unblank; | |
| 62 | panel->panel_data.caps = MSMFB_CAP_PARTIAL_UPDATES; | |
| 63 | panel->pdev.name = "msm_panel"; | |
| 64 | panel->pdev.id = pdev->id; | |
| 65 | platform_device_add_resources(&panel->pdev, | |
| 66 | client_data->fb_resource, 1); | |
| 67 | panel->panel_data.fb_data = client_data->private_client_data; | |
| 68 | panel->pdev.dev.platform_data = &panel->panel_data; | |
| 69 | ret = platform_device_register(&panel->pdev); | |
| 70 | if (ret) { | |
| 71 | kfree(panel); | |
| 72 | return ret; | |
| 73 | } | |
| 74 | return 0; | |
| 75 | } | |
| 76 | ||
| 77 | static int mddi_dummy_remove(struct platform_device *pdev) | |
| 78 | { | |
| 79 | struct panel_info *panel = platform_get_drvdata(pdev); | |
| 80 | kfree(panel); | |
| 81 | return 0; | |
| 82 | } | |
| 83 | ||
| 84 | static struct platform_driver mddi_client_dummy = { | |
| 85 | .probe = mddi_dummy_probe, | |
| 86 | .remove = mddi_dummy_remove, | |
| 87 | .driver = { .name = "mddi_c_dummy" }, | |
| 88 | }; | |
| 89 | ||
| 90 | static int __init mddi_client_dummy_init(void) | |
| 91 | { | |
| 92 | platform_driver_register(&mddi_client_dummy); | |
| 93 | return 0; | |
| 94 | } | |
| 95 | ||
| 96 | module_init(mddi_client_dummy_init); | |
| 97 |