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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 | ||
1bc857f7 | 26 | #include <asm/gpio.h> |
0adcbaf7 TL |
27 | |
28 | #include <mach/hardware.h> | |
70c494c3 | 29 | #include <mach/mux.h> |
0adcbaf7 | 30 | |
91773a00 | 31 | #include "omapfb.h" |
107cc64b DB |
32 | |
33 | static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) | |
34 | { | |
93a22f8b | 35 | /* gpio2 was allocated in board init */ |
107cc64b DB |
36 | return 0; |
37 | } | |
38 | ||
39 | static void osk_panel_cleanup(struct lcd_panel *panel) | |
40 | { | |
41 | } | |
42 | ||
43 | static int osk_panel_enable(struct lcd_panel *panel) | |
44 | { | |
45 | /* configure PWL pin */ | |
46 | omap_cfg_reg(PWL); | |
47 | ||
48 | /* Enable PWL unit */ | |
49 | omap_writeb(0x01, OMAP_PWL_CLK_ENABLE); | |
50 | ||
51 | /* Set PWL level */ | |
52 | omap_writeb(0xFF, OMAP_PWL_ENABLE); | |
53 | ||
93a22f8b DB |
54 | /* set GPIO2 high (lcd power enabled) */ |
55 | gpio_set_value(2, 1); | |
107cc64b DB |
56 | |
57 | return 0; | |
58 | } | |
59 | ||
60 | static void osk_panel_disable(struct lcd_panel *panel) | |
61 | { | |
62 | /* Set PWL level to zero */ | |
63 | omap_writeb(0x00, OMAP_PWL_ENABLE); | |
64 | ||
65 | /* Disable PWL unit */ | |
66 | omap_writeb(0x00, OMAP_PWL_CLK_ENABLE); | |
67 | ||
68 | /* set GPIO2 low */ | |
93a22f8b | 69 | gpio_set_value(2, 0); |
107cc64b DB |
70 | } |
71 | ||
72 | static unsigned long osk_panel_get_caps(struct lcd_panel *panel) | |
73 | { | |
74 | return 0; | |
75 | } | |
76 | ||
77 | struct lcd_panel osk_panel = { | |
78 | .name = "osk", | |
79 | .config = OMAP_LCDC_PANEL_TFT, | |
80 | ||
81 | .bpp = 16, | |
82 | .data_lines = 16, | |
83 | .x_res = 240, | |
84 | .y_res = 320, | |
85 | .pixel_clock = 12500, | |
86 | .hsw = 40, | |
87 | .hfp = 40, | |
88 | .hbp = 72, | |
89 | .vsw = 1, | |
90 | .vfp = 1, | |
91 | .vbp = 0, | |
92 | .pcd = 12, | |
93 | ||
94 | .init = osk_panel_init, | |
95 | .cleanup = osk_panel_cleanup, | |
96 | .enable = osk_panel_enable, | |
97 | .disable = osk_panel_disable, | |
98 | .get_caps = osk_panel_get_caps, | |
99 | }; | |
100 | ||
101 | static int osk_panel_probe(struct platform_device *pdev) | |
102 | { | |
103 | omapfb_register_panel(&osk_panel); | |
104 | return 0; | |
105 | } | |
106 | ||
107 | static int osk_panel_remove(struct platform_device *pdev) | |
108 | { | |
109 | return 0; | |
110 | } | |
111 | ||
112 | static int osk_panel_suspend(struct platform_device *pdev, pm_message_t mesg) | |
113 | { | |
114 | return 0; | |
115 | } | |
116 | ||
117 | static int osk_panel_resume(struct platform_device *pdev) | |
118 | { | |
119 | return 0; | |
120 | } | |
121 | ||
f9905441 | 122 | static struct platform_driver osk_panel_driver = { |
107cc64b DB |
123 | .probe = osk_panel_probe, |
124 | .remove = osk_panel_remove, | |
125 | .suspend = osk_panel_suspend, | |
126 | .resume = osk_panel_resume, | |
127 | .driver = { | |
128 | .name = "lcd_osk", | |
129 | .owner = THIS_MODULE, | |
130 | }, | |
131 | }; | |
132 | ||
f806f9b6 | 133 | module_platform_driver(osk_panel_driver); |