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107cc64b DB |
1 | /* |
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 | ||
a09e64fb | 26 | #include <mach/gpio.h> |
ce491cf8 | 27 | #include <plat/mux.h> |
91773a00 | 28 | #include "omapfb.h" |
107cc64b DB |
29 | |
30 | static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) | |
31 | { | |
93a22f8b | 32 | /* gpio2 was allocated in board init */ |
107cc64b DB |
33 | return 0; |
34 | } | |
35 | ||
36 | static void osk_panel_cleanup(struct lcd_panel *panel) | |
37 | { | |
38 | } | |
39 | ||
40 | static int osk_panel_enable(struct lcd_panel *panel) | |
41 | { | |
42 | /* configure PWL pin */ | |
43 | omap_cfg_reg(PWL); | |
44 | ||
45 | /* Enable PWL unit */ | |
46 | omap_writeb(0x01, OMAP_PWL_CLK_ENABLE); | |
47 | ||
48 | /* Set PWL level */ | |
49 | omap_writeb(0xFF, OMAP_PWL_ENABLE); | |
50 | ||
93a22f8b DB |
51 | /* set GPIO2 high (lcd power enabled) */ |
52 | gpio_set_value(2, 1); | |
107cc64b DB |
53 | |
54 | return 0; | |
55 | } | |
56 | ||
57 | static void osk_panel_disable(struct lcd_panel *panel) | |
58 | { | |
59 | /* Set PWL level to zero */ | |
60 | omap_writeb(0x00, OMAP_PWL_ENABLE); | |
61 | ||
62 | /* Disable PWL unit */ | |
63 | omap_writeb(0x00, OMAP_PWL_CLK_ENABLE); | |
64 | ||
65 | /* set GPIO2 low */ | |
93a22f8b | 66 | gpio_set_value(2, 0); |
107cc64b DB |
67 | } |
68 | ||
69 | static unsigned long osk_panel_get_caps(struct lcd_panel *panel) | |
70 | { | |
71 | return 0; | |
72 | } | |
73 | ||
74 | struct lcd_panel osk_panel = { | |
75 | .name = "osk", | |
76 | .config = OMAP_LCDC_PANEL_TFT, | |
77 | ||
78 | .bpp = 16, | |
79 | .data_lines = 16, | |
80 | .x_res = 240, | |
81 | .y_res = 320, | |
82 | .pixel_clock = 12500, | |
83 | .hsw = 40, | |
84 | .hfp = 40, | |
85 | .hbp = 72, | |
86 | .vsw = 1, | |
87 | .vfp = 1, | |
88 | .vbp = 0, | |
89 | .pcd = 12, | |
90 | ||
91 | .init = osk_panel_init, | |
92 | .cleanup = osk_panel_cleanup, | |
93 | .enable = osk_panel_enable, | |
94 | .disable = osk_panel_disable, | |
95 | .get_caps = osk_panel_get_caps, | |
96 | }; | |
97 | ||
98 | static int osk_panel_probe(struct platform_device *pdev) | |
99 | { | |
100 | omapfb_register_panel(&osk_panel); | |
101 | return 0; | |
102 | } | |
103 | ||
104 | static int osk_panel_remove(struct platform_device *pdev) | |
105 | { | |
106 | return 0; | |
107 | } | |
108 | ||
109 | static int osk_panel_suspend(struct platform_device *pdev, pm_message_t mesg) | |
110 | { | |
111 | return 0; | |
112 | } | |
113 | ||
114 | static int osk_panel_resume(struct platform_device *pdev) | |
115 | { | |
116 | return 0; | |
117 | } | |
118 | ||
119 | struct platform_driver osk_panel_driver = { | |
120 | .probe = osk_panel_probe, | |
121 | .remove = osk_panel_remove, | |
122 | .suspend = osk_panel_suspend, | |
123 | .resume = osk_panel_resume, | |
124 | .driver = { | |
125 | .name = "lcd_osk", | |
126 | .owner = THIS_MODULE, | |
127 | }, | |
128 | }; | |
129 | ||
3f6db50f | 130 | static int __init osk_panel_drv_init(void) |
107cc64b DB |
131 | { |
132 | return platform_driver_register(&osk_panel_driver); | |
133 | } | |
134 | ||
3f6db50f | 135 | static void __exit osk_panel_drv_cleanup(void) |
107cc64b DB |
136 | { |
137 | platform_driver_unregister(&osk_panel_driver); | |
138 | } | |
139 | ||
140 | module_init(osk_panel_drv_init); | |
141 | module_exit(osk_panel_drv_cleanup); | |
142 |