1 /* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 and
5 * only version 2 as published by the Free Software Foundation.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15 * 02110-1301, USA.
16 */
17
18 #include <linux/module.h>
19 #include <linux/moduleparam.h>
20 #include <linux/kernel.h>
21 #include <linux/slab.h>
22 #include <linux/delay.h>
23 #include <linux/mm.h>
24 #include <linux/fb.h>
25 #include <linux/init.h>
26 #include <linux/ioport.h>
27 #include <linux/device.h>
28 #include <linux/dma-mapping.h>
29 #include <linux/uaccess.h>
30 #include <linux/workqueue.h>
31 #include <linux/string.h>
32 #include <linux/version.h>
33 #include <linux/proc_fs.h>
34 #include <linux/vmalloc.h>
35 #include <linux/debugfs.h>
36
37 #include "msm_fb_panel.h"
38
panel_next_on(struct platform_device * pdev)39 int panel_next_on(struct platform_device *pdev)
40 {
41 int ret = 0;
42 struct msm_fb_panel_data *pdata;
43 struct msm_fb_panel_data *next_pdata;
44 struct platform_device *next_pdev;
45
46 pdata = (struct msm_fb_panel_data *)pdev->dev.platform_data;
47
48 if (pdata) {
49 next_pdev = pdata->next;
50 if (next_pdev) {
51 next_pdata =
52 (struct msm_fb_panel_data *)next_pdev->dev.
53 platform_data;
54 if ((next_pdata) && (next_pdata->on))
55 ret = next_pdata->on(next_pdev);
56 }
57 }
58
59 return ret;
60 }
61
panel_next_off(struct platform_device * pdev)62 int panel_next_off(struct platform_device *pdev)
63 {
64 int ret = 0;
65 struct msm_fb_panel_data *pdata;
66 struct msm_fb_panel_data *next_pdata;
67 struct platform_device *next_pdev;
68
69 pdata = (struct msm_fb_panel_data *)pdev->dev.platform_data;
70
71 if (pdata) {
72 next_pdev = pdata->next;
73 if (next_pdev) {
74 next_pdata =
75 (struct msm_fb_panel_data *)next_pdev->dev.
76 platform_data;
77 if ((next_pdata) && (next_pdata->on))
78 ret = next_pdata->off(next_pdev);
79 }
80 }
81
82 return ret;
83 }
84
msm_fb_device_alloc(struct msm_fb_panel_data * pdata,u32 type,u32 id)85 struct platform_device *msm_fb_device_alloc(struct msm_fb_panel_data *pdata,
86 u32 type, u32 id)
87 {
88 struct platform_device *this_dev = NULL;
89 char dev_name[16];
90
91 switch (type) {
92 case EBI2_PANEL:
93 snprintf(dev_name, sizeof(dev_name), "ebi2_lcd");
94 break;
95
96 case MDDI_PANEL:
97 snprintf(dev_name, sizeof(dev_name), "mddi");
98 break;
99
100 case EXT_MDDI_PANEL:
101 snprintf(dev_name, sizeof(dev_name), "mddi_ext");
102 break;
103
104 case TV_PANEL:
105 snprintf(dev_name, sizeof(dev_name), "tvenc");
106 break;
107
108 case HDMI_PANEL:
109 case LCDC_PANEL:
110 snprintf(dev_name, sizeof(dev_name), "lcdc");
111 break;
112
113 default:
114 return NULL;
115 }
116
117 if (pdata != NULL)
118 pdata->next = NULL;
119 else
120 return NULL;
121
122 this_dev =
123 platform_device_alloc(dev_name, ((u32) type << 16) | (u32) id);
124
125 if (this_dev) {
126 if (platform_device_add_data
127 (this_dev, pdata, sizeof(struct msm_fb_panel_data))) {
128 printk
129 ("msm_fb_device_alloc: platform_device_add_data failed!\n");
130 platform_device_put(this_dev);
131 return NULL;
132 }
133 }
134
135 return this_dev;
136 }
137