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
26#include <asm/gpio.h>
27
28#include <mach/hardware.h>
29#include <mach/mux.h>
30
31#include "omapfb.h"
32
33static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
34{
35	/* gpio2 was allocated in board init */
36	return 0;
37}
38
39static void osk_panel_cleanup(struct lcd_panel *panel)
40{
41}
42
43static 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
54	/* set GPIO2 high (lcd power enabled) */
55	gpio_set_value(2, 1);
56
57	return 0;
58}
59
60static 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 */
69	gpio_set_value(2, 0);
70}
71
72static unsigned long osk_panel_get_caps(struct lcd_panel *panel)
73{
74	return 0;
75}
76
77struct 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
101static int osk_panel_probe(struct platform_device *pdev)
102{
103	omapfb_register_panel(&osk_panel);
104	return 0;
105}
106
107static int osk_panel_remove(struct platform_device *pdev)
108{
109	return 0;
110}
111
112static int osk_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
113{
114	return 0;
115}
116
117static int osk_panel_resume(struct platform_device *pdev)
118{
119	return 0;
120}
121
122static struct platform_driver osk_panel_driver = {
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
133module_platform_driver(osk_panel_driver);
134