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be481941 SS |
1 | /* |
2 | * LCD panel support for the Gumstix Overo | |
3 | * | |
4 | * Author: Steve Sakoman <steve@sakoman.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2 of the License, or (at your | |
9 | * option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; if not, write to the Free Software Foundation, Inc., | |
18 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
19 | * | |
20 | */ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/platform_device.h> | |
24 | #include <linux/i2c/twl4030.h> | |
25 | ||
26 | #include <mach/gpio.h> | |
ce491cf8 | 27 | #include <plat/mux.h> |
be481941 SS |
28 | #include <asm/mach-types.h> |
29 | ||
91773a00 TV |
30 | #include "omapfb.h" |
31 | ||
be481941 SS |
32 | #define LCD_ENABLE 144 |
33 | ||
34 | static int overo_panel_init(struct lcd_panel *panel, | |
35 | struct omapfb_device *fbdev) | |
36 | { | |
37 | if ((gpio_request(LCD_ENABLE, "LCD_ENABLE") == 0) && | |
38 | (gpio_direction_output(LCD_ENABLE, 1) == 0)) | |
39 | gpio_export(LCD_ENABLE, 0); | |
40 | else | |
41 | printk(KERN_ERR "could not obtain gpio for LCD_ENABLE\n"); | |
42 | ||
43 | return 0; | |
44 | } | |
45 | ||
46 | static void overo_panel_cleanup(struct lcd_panel *panel) | |
47 | { | |
48 | gpio_free(LCD_ENABLE); | |
49 | } | |
50 | ||
51 | static int overo_panel_enable(struct lcd_panel *panel) | |
52 | { | |
53 | gpio_set_value(LCD_ENABLE, 1); | |
54 | return 0; | |
55 | } | |
56 | ||
57 | static void overo_panel_disable(struct lcd_panel *panel) | |
58 | { | |
59 | gpio_set_value(LCD_ENABLE, 0); | |
60 | } | |
61 | ||
62 | static unsigned long overo_panel_get_caps(struct lcd_panel *panel) | |
63 | { | |
64 | return 0; | |
65 | } | |
66 | ||
67 | struct lcd_panel overo_panel = { | |
68 | .name = "overo", | |
69 | .config = OMAP_LCDC_PANEL_TFT, | |
70 | .bpp = 16, | |
71 | .data_lines = 24, | |
72 | ||
73 | #if defined CONFIG_FB_OMAP_031M3R | |
74 | ||
75 | /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */ | |
76 | .x_res = 640, | |
77 | .y_res = 480, | |
78 | .hfp = 48, | |
79 | .hsw = 32, | |
80 | .hbp = 80, | |
81 | .vfp = 3, | |
82 | .vsw = 4, | |
83 | .vbp = 7, | |
84 | .pixel_clock = 23500, | |
85 | ||
86 | #elif defined CONFIG_FB_OMAP_048M3R | |
87 | ||
88 | /* 800 x 600 @ 60 Hz Reduced blanking VESA CVT 0.48M3-R */ | |
89 | .x_res = 800, | |
90 | .y_res = 600, | |
91 | .hfp = 48, | |
92 | .hsw = 32, | |
93 | .hbp = 80, | |
94 | .vfp = 3, | |
95 | .vsw = 4, | |
96 | .vbp = 11, | |
97 | .pixel_clock = 35500, | |
98 | ||
99 | #elif defined CONFIG_FB_OMAP_079M3R | |
100 | ||
101 | /* 1024 x 768 @ 60 Hz Reduced blanking VESA CVT 0.79M3-R */ | |
102 | .x_res = 1024, | |
103 | .y_res = 768, | |
104 | .hfp = 48, | |
105 | .hsw = 32, | |
106 | .hbp = 80, | |
107 | .vfp = 3, | |
108 | .vsw = 4, | |
109 | .vbp = 15, | |
110 | .pixel_clock = 56000, | |
111 | ||
112 | #elif defined CONFIG_FB_OMAP_092M9R | |
113 | ||
114 | /* 1280 x 720 @ 60 Hz Reduced blanking VESA CVT 0.92M9-R */ | |
115 | .x_res = 1280, | |
116 | .y_res = 720, | |
117 | .hfp = 48, | |
118 | .hsw = 32, | |
119 | .hbp = 80, | |
120 | .vfp = 3, | |
121 | .vsw = 5, | |
122 | .vbp = 13, | |
123 | .pixel_clock = 64000, | |
124 | ||
125 | #else | |
126 | ||
127 | /* use 640 x 480 if no config option */ | |
128 | /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */ | |
129 | .x_res = 640, | |
130 | .y_res = 480, | |
131 | .hfp = 48, | |
132 | .hsw = 32, | |
133 | .hbp = 80, | |
134 | .vfp = 3, | |
135 | .vsw = 4, | |
136 | .vbp = 7, | |
137 | .pixel_clock = 23500, | |
138 | ||
139 | #endif | |
140 | ||
141 | .init = overo_panel_init, | |
142 | .cleanup = overo_panel_cleanup, | |
143 | .enable = overo_panel_enable, | |
144 | .disable = overo_panel_disable, | |
145 | .get_caps = overo_panel_get_caps, | |
146 | }; | |
147 | ||
148 | static int overo_panel_probe(struct platform_device *pdev) | |
149 | { | |
150 | omapfb_register_panel(&overo_panel); | |
151 | return 0; | |
152 | } | |
153 | ||
154 | static int overo_panel_remove(struct platform_device *pdev) | |
155 | { | |
156 | /* omapfb does not have unregister_panel */ | |
157 | return 0; | |
158 | } | |
159 | ||
160 | static struct platform_driver overo_panel_driver = { | |
161 | .probe = overo_panel_probe, | |
162 | .remove = overo_panel_remove, | |
163 | .driver = { | |
164 | .name = "overo_lcd", | |
165 | .owner = THIS_MODULE, | |
166 | }, | |
167 | }; | |
168 | ||
169 | static int __init overo_panel_drv_init(void) | |
170 | { | |
171 | return platform_driver_register(&overo_panel_driver); | |
172 | } | |
173 | ||
174 | static void __exit overo_panel_drv_exit(void) | |
175 | { | |
176 | platform_driver_unregister(&overo_panel_driver); | |
177 | } | |
178 | ||
179 | module_init(overo_panel_drv_init); | |
180 | module_exit(overo_panel_drv_exit); |