1 /*
2 * LCD panel support for the TI OMAP H3 board
3 *
4 * Copyright (C) 2004 Nokia Corporation
5 * Author: Imre Deak <imre.deak@nokia.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 as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 */
21
22 #include <linux/module.h>
23 #include <linux/platform_device.h>
24 #include <linux/i2c/tps65010.h>
25
26 #include <mach/gpio.h>
27 #include "omapfb.h"
28
29 #define MODULE_NAME "omapfb-lcd_h3"
30
h3_panel_init(struct lcd_panel * panel,struct omapfb_device * fbdev)31 static int h3_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
32 {
33 return 0;
34 }
35
h3_panel_cleanup(struct lcd_panel * panel)36 static void h3_panel_cleanup(struct lcd_panel *panel)
37 {
38 }
39
h3_panel_enable(struct lcd_panel * panel)40 static int h3_panel_enable(struct lcd_panel *panel)
41 {
42 int r = 0;
43
44 /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
45 r = tps65010_set_gpio_out_value(GPIO1, HIGH);
46 if (!r)
47 r = tps65010_set_gpio_out_value(GPIO2, HIGH);
48 if (r)
49 pr_err(MODULE_NAME ": Unable to turn on LCD panel\n");
50
51 return r;
52 }
53
h3_panel_disable(struct lcd_panel * panel)54 static void h3_panel_disable(struct lcd_panel *panel)
55 {
56 int r = 0;
57
58 /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
59 r = tps65010_set_gpio_out_value(GPIO1, LOW);
60 if (!r)
61 tps65010_set_gpio_out_value(GPIO2, LOW);
62 if (r)
63 pr_err(MODULE_NAME ": Unable to turn off LCD panel\n");
64 }
65
h3_panel_get_caps(struct lcd_panel * panel)66 static unsigned long h3_panel_get_caps(struct lcd_panel *panel)
67 {
68 return 0;
69 }
70
71 struct lcd_panel h3_panel = {
72 .name = "h3",
73 .config = OMAP_LCDC_PANEL_TFT,
74
75 .data_lines = 16,
76 .bpp = 16,
77 .x_res = 240,
78 .y_res = 320,
79 .pixel_clock = 12000,
80 .hsw = 12,
81 .hfp = 14,
82 .hbp = 72 - 12,
83 .vsw = 1,
84 .vfp = 1,
85 .vbp = 0,
86 .pcd = 0,
87
88 .init = h3_panel_init,
89 .cleanup = h3_panel_cleanup,
90 .enable = h3_panel_enable,
91 .disable = h3_panel_disable,
92 .get_caps = h3_panel_get_caps,
93 };
94
h3_panel_probe(struct platform_device * pdev)95 static int h3_panel_probe(struct platform_device *pdev)
96 {
97 omapfb_register_panel(&h3_panel);
98 return 0;
99 }
100
h3_panel_remove(struct platform_device * pdev)101 static int h3_panel_remove(struct platform_device *pdev)
102 {
103 return 0;
104 }
105
h3_panel_suspend(struct platform_device * pdev,pm_message_t mesg)106 static int h3_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
107 {
108 return 0;
109 }
110
h3_panel_resume(struct platform_device * pdev)111 static int h3_panel_resume(struct platform_device *pdev)
112 {
113 return 0;
114 }
115
116 struct platform_driver h3_panel_driver = {
117 .probe = h3_panel_probe,
118 .remove = h3_panel_remove,
119 .suspend = h3_panel_suspend,
120 .resume = h3_panel_resume,
121 .driver = {
122 .name = "lcd_h3",
123 .owner = THIS_MODULE,
124 },
125 };
126
h3_panel_drv_init(void)127 static int __init h3_panel_drv_init(void)
128 {
129 return platform_driver_register(&h3_panel_driver);
130 }
131
h3_panel_drv_cleanup(void)132 static void __exit h3_panel_drv_cleanup(void)
133 {
134 platform_driver_unregister(&h3_panel_driver);
135 }
136
137 module_init(h3_panel_drv_init);
138 module_exit(h3_panel_drv_cleanup);
139
140