1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
/*
* LCD panel driver for Sharp LQ043T1DG01
*
* Copyright (C) 2009 Texas Instruments Inc
* Author: Vaibhav Hiremath <hvaibhav@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* 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.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/err.h>
#include <plat/display.h>
static struct omap_video_timings sharp_lq_timings = {
.x_res = 480,
.y_res = 272,
.pixel_clock = 9000,
.hsw = 42,
.hfp = 3,
.hbp = 2,
.vsw = 11,
.vfp = 3,
.vbp = 2,
};
static int sharp_lq_panel_power_on(struct omap_dss_device *dssdev)
{
int r;
if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
return 0;
r = omapdss_dpi_display_enable(dssdev);
if (r)
goto err0;
/* wait couple of vsyncs until enabling the LCD */
msleep(50);
if (dssdev->platform_enable) {
r = dssdev->platform_enable(dssdev);
if (r)
goto err1;
}
return 0;
err1:
omapdss_dpi_display_disable(dssdev);
err0:
return r;
}
static void sharp_lq_panel_power_off(struct omap_dss_device *dssdev)
{
if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
return;
if (dssdev->platform_disable)
dssdev->platform_disable(dssdev);
/* wait at least 5 vsyncs after disabling the LCD */
msleep(100);
omapdss_dpi_display_disable(dssdev);
}
static int sharp_lq_panel_probe(struct omap_dss_device *dssdev)
{
dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IEO;
dssdev->panel.acb = 0x0;
dssdev->panel.timings = sharp_lq_timings;
return 0;
}
static void sharp_lq_panel_remove(struct omap_dss_device *dssdev)
{
}
static int sharp_lq_panel_enable(struct omap_dss_device *dssdev)
{
int r = 0;
r = sharp_lq_panel_power_on(dssdev);
if (r)
return r;
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return 0;
}
static void sharp_lq_panel_disable(struct omap_dss_device *dssdev)
{
sharp_lq_panel_power_off(dssdev);
dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
}
static int sharp_lq_panel_suspend(struct omap_dss_device *dssdev)
{
sharp_lq_panel_power_off(dssdev);
dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
return 0;
}
static int sharp_lq_panel_resume(struct omap_dss_device *dssdev)
{
int r = 0;
r = sharp_lq_panel_power_on(dssdev);
if (r)
return r;
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return 0;
}
static struct omap_dss_driver sharp_lq_driver = {
.probe = sharp_lq_panel_probe,
.remove = sharp_lq_panel_remove,
.enable = sharp_lq_panel_enable,
.disable = sharp_lq_panel_disable,
.suspend = sharp_lq_panel_suspend,
.resume = sharp_lq_panel_resume,
.driver = {
.name = "sharp_lq_panel",
.owner = THIS_MODULE,
},
};
static int __init sharp_lq_panel_drv_init(void)
{
return omap_dss_register_driver(&sharp_lq_driver);
}
static void __exit sharp_lq_panel_drv_exit(void)
{
omap_dss_unregister_driver(&sharp_lq_driver);
}
module_init(sharp_lq_panel_drv_init);
module_exit(sharp_lq_panel_drv_exit);
MODULE_LICENSE("GPL");
|
