2 * LCD panel support for the TI OMAP OSK board
4 * Copyright (C) 2004 Nokia Corporation
5 * Author: Imre Deak <imre.deak@nokia.com>
6 * Adapted for OSK by <dirk.behme@de.bosch.com>
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.
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.
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.
23 #include <linux/module.h>
24 #include <linux/platform_device.h>
25 #include <linux/gpio.h>
27 #include <mach/hardware.h>
32 static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
34 /* gpio2 was allocated in board init */
38 static void osk_panel_cleanup(struct lcd_panel *panel)
42 static int osk_panel_enable(struct lcd_panel *panel)
44 /* configure PWL pin */
48 omap_writeb(0x01, OMAP_PWL_CLK_ENABLE);
51 omap_writeb(0xFF, OMAP_PWL_ENABLE);
53 /* set GPIO2 high (lcd power enabled) */
59 static void osk_panel_disable(struct lcd_panel *panel)
61 /* Set PWL level to zero */
62 omap_writeb(0x00, OMAP_PWL_ENABLE);
64 /* Disable PWL unit */
65 omap_writeb(0x00, OMAP_PWL_CLK_ENABLE);
71 static unsigned long osk_panel_get_caps(struct lcd_panel *panel)
76 struct lcd_panel osk_panel = {
78 .config = OMAP_LCDC_PANEL_TFT,
93 .init = osk_panel_init,
94 .cleanup = osk_panel_cleanup,
95 .enable = osk_panel_enable,
96 .disable = osk_panel_disable,
97 .get_caps = osk_panel_get_caps,
100 static int osk_panel_probe(struct platform_device *pdev)
102 omapfb_register_panel(&osk_panel);
106 static int osk_panel_remove(struct platform_device *pdev)
111 static int osk_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
116 static int osk_panel_resume(struct platform_device *pdev)
121 static struct platform_driver osk_panel_driver = {
122 .probe = osk_panel_probe,
123 .remove = osk_panel_remove,
124 .suspend = osk_panel_suspend,
125 .resume = osk_panel_resume,
131 module_platform_driver(osk_panel_driver);