2 * Generic panel support
4 * Copyright (C) 2008 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published by
9 * the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
20 #include <linux/module.h>
21 #include <linux/delay.h>
23 #include <plat/display.h>
25 static struct omap_video_timings generic_panel_timings = {
26 /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */
38 static int generic_panel_power_on(struct omap_dss_device *dssdev)
42 if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
45 r = omapdss_dpi_display_enable(dssdev);
49 if (dssdev->platform_enable) {
50 r = dssdev->platform_enable(dssdev);
57 omapdss_dpi_display_disable(dssdev);
62 static void generic_panel_power_off(struct omap_dss_device *dssdev)
64 if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
67 if (dssdev->platform_disable)
68 dssdev->platform_disable(dssdev);
70 omapdss_dpi_display_disable(dssdev);
73 static int generic_panel_probe(struct omap_dss_device *dssdev)
75 dssdev->panel.config = OMAP_DSS_LCD_TFT;
76 dssdev->panel.timings = generic_panel_timings;
81 static void generic_panel_remove(struct omap_dss_device *dssdev)
85 static int generic_panel_enable(struct omap_dss_device *dssdev)
89 r = generic_panel_power_on(dssdev);
93 dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
98 static void generic_panel_disable(struct omap_dss_device *dssdev)
100 generic_panel_power_off(dssdev);
102 dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
105 static int generic_panel_suspend(struct omap_dss_device *dssdev)
107 generic_panel_power_off(dssdev);
108 dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
112 static int generic_panel_resume(struct omap_dss_device *dssdev)
116 r = generic_panel_power_on(dssdev);
120 dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
125 static void generic_panel_set_timings(struct omap_dss_device *dssdev,
126 struct omap_video_timings *timings)
128 dpi_set_timings(dssdev, timings);
131 static void generic_panel_get_timings(struct omap_dss_device *dssdev,
132 struct omap_video_timings *timings)
134 *timings = dssdev->panel.timings;
137 static int generic_panel_check_timings(struct omap_dss_device *dssdev,
138 struct omap_video_timings *timings)
140 return dpi_check_timings(dssdev, timings);
143 static struct omap_dss_driver generic_driver = {
144 .probe = generic_panel_probe,
145 .remove = generic_panel_remove,
147 .enable = generic_panel_enable,
148 .disable = generic_panel_disable,
149 .suspend = generic_panel_suspend,
150 .resume = generic_panel_resume,
152 .set_timings = generic_panel_set_timings,
153 .get_timings = generic_panel_get_timings,
154 .check_timings = generic_panel_check_timings,
157 .name = "generic_panel",
158 .owner = THIS_MODULE,
162 static int __init generic_panel_drv_init(void)
164 return omap_dss_register_driver(&generic_driver);
167 static void __exit generic_panel_drv_exit(void)
169 omap_dss_unregister_driver(&generic_driver);
172 module_init(generic_panel_drv_init);
173 module_exit(generic_panel_drv_exit);
174 MODULE_LICENSE("GPL");