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 #include <linux/gpio.h>
26
27 #include <mach/hardware.h>
28 #include <mach/mux.h>
29
30 #include "omapfb.h"
31
osk_panel_enable(struct lcd_panel * panel)32 static int osk_panel_enable(struct lcd_panel *panel)
33 {
34 /* configure PWL pin */
35 omap_cfg_reg(PWL);
36
37 /* Enable PWL unit */
38 omap_writeb(0x01, OMAP_PWL_CLK_ENABLE);
39
40 /* Set PWL level */
41 omap_writeb(0xFF, OMAP_PWL_ENABLE);
42
43 /* set GPIO2 high (lcd power enabled) */
44 gpio_set_value(2, 1);
45
46 return 0;
47 }
48
osk_panel_disable(struct lcd_panel * panel)49 static void osk_panel_disable(struct lcd_panel *panel)
50 {
51 /* Set PWL level to zero */
52 omap_writeb(0x00, OMAP_PWL_ENABLE);
53
54 /* Disable PWL unit */
55 omap_writeb(0x00, OMAP_PWL_CLK_ENABLE);
56
57 /* set GPIO2 low */
58 gpio_set_value(2, 0);
59 }
60
61 static struct lcd_panel osk_panel = {
62 .name = "osk",
63 .config = OMAP_LCDC_PANEL_TFT,
64
65 .bpp = 16,
66 .data_lines = 16,
67 .x_res = 240,
68 .y_res = 320,
69 .pixel_clock = 12500,
70 .hsw = 40,
71 .hfp = 40,
72 .hbp = 72,
73 .vsw = 1,
74 .vfp = 1,
75 .vbp = 0,
76 .pcd = 12,
77
78 .enable = osk_panel_enable,
79 .disable = osk_panel_disable,
80 };
81
osk_panel_probe(struct platform_device * pdev)82 static int osk_panel_probe(struct platform_device *pdev)
83 {
84 omapfb_register_panel(&osk_panel);
85 return 0;
86 }
87
88 static struct platform_driver osk_panel_driver = {
89 .probe = osk_panel_probe,
90 .driver = {
91 .name = "lcd_osk",
92 },
93 };
94
95 module_platform_driver(osk_panel_driver);
96