blob: a38038840fd630d3dc12e38337ef39a273229708 [file] [log] [blame]
Dirk Behme107cc642007-07-17 04:06:07 -07001/*
2 * LCD panel support for the TI OMAP OSK board
3 *
4 * Copyright (C) 2004 Nokia Corporation
5 * Author: Imre Deak <imre.deak@nokia.com>
6 * Adapted for OSK by <dirk.behme@de.bosch.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 */
22
23#include <linux/module.h>
24#include <linux/platform_device.h>
25
26#include <asm/arch/gpio.h>
27#include <asm/arch/mux.h>
28#include <asm/arch/omapfb.h>
29
30static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
31{
32 return 0;
33}
34
35static void osk_panel_cleanup(struct lcd_panel *panel)
36{
37}
38
39static int osk_panel_enable(struct lcd_panel *panel)
40{
41 /* configure PWL pin */
42 omap_cfg_reg(PWL);
43
44 /* Enable PWL unit */
45 omap_writeb(0x01, OMAP_PWL_CLK_ENABLE);
46
47 /* Set PWL level */
48 omap_writeb(0xFF, OMAP_PWL_ENABLE);
49
50 /* configure GPIO2 as output */
51 omap_set_gpio_direction(2, 0);
52
53 /* set GPIO2 high */
54 omap_set_gpio_dataout(2, 1);
55
56 return 0;
57}
58
59static void osk_panel_disable(struct lcd_panel *panel)
60{
61 /* Set PWL level to zero */
62 omap_writeb(0x00, OMAP_PWL_ENABLE);
63
64 /* Disable PWL unit */
65 omap_writeb(0x00, OMAP_PWL_CLK_ENABLE);
66
67 /* set GPIO2 low */
68 omap_set_gpio_dataout(2, 0);
69}
70
71static unsigned long osk_panel_get_caps(struct lcd_panel *panel)
72{
73 return 0;
74}
75
76struct lcd_panel osk_panel = {
77 .name = "osk",
78 .config = OMAP_LCDC_PANEL_TFT,
79
80 .bpp = 16,
81 .data_lines = 16,
82 .x_res = 240,
83 .y_res = 320,
84 .pixel_clock = 12500,
85 .hsw = 40,
86 .hfp = 40,
87 .hbp = 72,
88 .vsw = 1,
89 .vfp = 1,
90 .vbp = 0,
91 .pcd = 12,
92
93 .init = osk_panel_init,
94 .cleanup = osk_panel_cleanup,
95 .enable = osk_panel_enable,
96 .disable = osk_panel_disable,
97 .get_caps = osk_panel_get_caps,
98};
99
100static int osk_panel_probe(struct platform_device *pdev)
101{
102 omapfb_register_panel(&osk_panel);
103 return 0;
104}
105
106static int osk_panel_remove(struct platform_device *pdev)
107{
108 return 0;
109}
110
111static int osk_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
112{
113 return 0;
114}
115
116static int osk_panel_resume(struct platform_device *pdev)
117{
118 return 0;
119}
120
121struct platform_driver osk_panel_driver = {
122 .probe = osk_panel_probe,
123 .remove = osk_panel_remove,
124 .suspend = osk_panel_suspend,
125 .resume = osk_panel_resume,
126 .driver = {
127 .name = "lcd_osk",
128 .owner = THIS_MODULE,
129 },
130};
131
132static int osk_panel_drv_init(void)
133{
134 return platform_driver_register(&osk_panel_driver);
135}
136
137static void osk_panel_drv_cleanup(void)
138{
139 platform_driver_unregister(&osk_panel_driver);
140}
141
142module_init(osk_panel_drv_init);
143module_exit(osk_panel_drv_cleanup);
144