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Diffstat (limited to 'drivers/video/omap2/displays/panel-sharp-lq043t1dg01.c')
-rw-r--r--drivers/video/omap2/displays/panel-sharp-lq043t1dg01.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/drivers/video/omap2/displays/panel-sharp-lq043t1dg01.c b/drivers/video/omap2/displays/panel-sharp-lq043t1dg01.c
new file mode 100644
index 000000000000..10267461991c
--- /dev/null
+++ b/drivers/video/omap2/displays/panel-sharp-lq043t1dg01.c
@@ -0,0 +1,159 @@
1/*
2 * LCD panel driver for Sharp LQ043T1DG01
3 *
4 * Copyright (C) 2009 Texas Instruments Inc
5 * Author: Vaibhav Hiremath <hvaibhav@ti.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published by
9 * the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include <linux/module.h>
21#include <linux/delay.h>
22#include <linux/device.h>
23#include <linux/err.h>
24
25#include <plat/display.h>
26
27static struct omap_video_timings sharp_lq_timings = {
28 .x_res = 480,
29 .y_res = 272,
30
31 .pixel_clock = 9000,
32
33 .hsw = 42,
34 .hfp = 3,
35 .hbp = 2,
36
37 .vsw = 11,
38 .vfp = 3,
39 .vbp = 2,
40};
41
42static int sharp_lq_panel_power_on(struct omap_dss_device *dssdev)
43{
44 int r;
45
46 r = omapdss_dpi_display_enable(dssdev);
47 if (r)
48 goto err0;
49
50 /* wait couple of vsyncs until enabling the LCD */
51 msleep(50);
52
53 if (dssdev->platform_enable) {
54 r = dssdev->platform_enable(dssdev);
55 if (r)
56 goto err1;
57 }
58
59 return 0;
60err1:
61 omapdss_dpi_display_disable(dssdev);
62err0:
63 return r;
64}
65
66static void sharp_lq_panel_power_off(struct omap_dss_device *dssdev)
67{
68 if (dssdev->platform_disable)
69 dssdev->platform_disable(dssdev);
70
71 /* wait at least 5 vsyncs after disabling the LCD */
72 msleep(100);
73
74 omapdss_dpi_display_disable(dssdev);
75}
76
77static int sharp_lq_panel_probe(struct omap_dss_device *dssdev)
78{
79
80 dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
81 OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IEO;
82 dssdev->panel.acb = 0x0;
83 dssdev->panel.timings = sharp_lq_timings;
84
85 return 0;
86}
87
88static void sharp_lq_panel_remove(struct omap_dss_device *dssdev)
89{
90}
91
92static int sharp_lq_panel_enable(struct omap_dss_device *dssdev)
93{
94 int r = 0;
95
96 r = sharp_lq_panel_power_on(dssdev);
97 if (r)
98 return r;
99
100 dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
101
102 return 0;
103}
104
105static void sharp_lq_panel_disable(struct omap_dss_device *dssdev)
106{
107 sharp_lq_panel_power_off(dssdev);
108
109 dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
110}
111
112static int sharp_lq_panel_suspend(struct omap_dss_device *dssdev)
113{
114 sharp_lq_panel_power_off(dssdev);
115 dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
116 return 0;
117}
118
119static int sharp_lq_panel_resume(struct omap_dss_device *dssdev)
120{
121 int r = 0;
122
123 r = sharp_lq_panel_power_on(dssdev);
124 if (r)
125 return r;
126
127 dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
128
129 return 0;
130}
131
132static struct omap_dss_driver sharp_lq_driver = {
133 .probe = sharp_lq_panel_probe,
134 .remove = sharp_lq_panel_remove,
135
136 .enable = sharp_lq_panel_enable,
137 .disable = sharp_lq_panel_disable,
138 .suspend = sharp_lq_panel_suspend,
139 .resume = sharp_lq_panel_resume,
140
141 .driver = {
142 .name = "sharp_lq_panel",
143 .owner = THIS_MODULE,
144 },
145};
146
147static int __init sharp_lq_panel_drv_init(void)
148{
149 return omap_dss_register_driver(&sharp_lq_driver);
150}
151
152static void __exit sharp_lq_panel_drv_exit(void)
153{
154 omap_dss_unregister_driver(&sharp_lq_driver);
155}
156
157module_init(sharp_lq_panel_drv_init);
158module_exit(sharp_lq_panel_drv_exit);
159MODULE_LICENSE("GPL");