| /* |
| * Generic panel support |
| * |
| * Copyright (C) 2008 Nokia Corporation |
| * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published by |
| * the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/delay.h> |
| |
| #include <plat/display.h> |
| |
| static struct omap_video_timings generic_panel_timings = { |
| /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */ |
| .x_res = 640, |
| .y_res = 480, |
| .pixel_clock = 23500, |
| .hfp = 48, |
| .hsw = 32, |
| .hbp = 80, |
| .vfp = 3, |
| .vsw = 4, |
| .vbp = 7, |
| }; |
| |
| static int generic_panel_power_on(struct omap_dss_device *dssdev) |
| { |
| int r; |
| |
| if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) |
| return 0; |
| |
| r = omapdss_dpi_display_enable(dssdev); |
| if (r) |
| goto err0; |
| |
| if (dssdev->platform_enable) { |
| r = dssdev->platform_enable(dssdev); |
| if (r) |
| goto err1; |
| } |
| |
| return 0; |
| err1: |
| omapdss_dpi_display_disable(dssdev); |
| err0: |
| return r; |
| } |
| |
| static void generic_panel_power_off(struct omap_dss_device *dssdev) |
| { |
| if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) |
| return; |
| |
| if (dssdev->platform_disable) |
| dssdev->platform_disable(dssdev); |
| |
| omapdss_dpi_display_disable(dssdev); |
| } |
| |
| static int generic_panel_probe(struct omap_dss_device *dssdev) |
| { |
| dssdev->panel.config = OMAP_DSS_LCD_TFT; |
| dssdev->panel.timings = generic_panel_timings; |
| |
| return 0; |
| } |
| |
| static void generic_panel_remove(struct omap_dss_device *dssdev) |
| { |
| } |
| |
| static int generic_panel_enable(struct omap_dss_device *dssdev) |
| { |
| int r = 0; |
| |
| r = generic_panel_power_on(dssdev); |
| if (r) |
| return r; |
| |
| dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; |
| |
| return 0; |
| } |
| |
| static void generic_panel_disable(struct omap_dss_device *dssdev) |
| { |
| generic_panel_power_off(dssdev); |
| |
| dssdev->state = OMAP_DSS_DISPLAY_DISABLED; |
| } |
| |
| static int generic_panel_suspend(struct omap_dss_device *dssdev) |
| { |
| generic_panel_power_off(dssdev); |
| dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; |
| return 0; |
| } |
| |
| static int generic_panel_resume(struct omap_dss_device *dssdev) |
| { |
| int r = 0; |
| |
| r = generic_panel_power_on(dssdev); |
| if (r) |
| return r; |
| |
| dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; |
| |
| return 0; |
| } |
| |
| static void generic_panel_set_timings(struct omap_dss_device *dssdev, |
| struct omap_video_timings *timings) |
| { |
| dpi_set_timings(dssdev, timings); |
| } |
| |
| static void generic_panel_get_timings(struct omap_dss_device *dssdev, |
| struct omap_video_timings *timings) |
| { |
| *timings = dssdev->panel.timings; |
| } |
| |
| static int generic_panel_check_timings(struct omap_dss_device *dssdev, |
| struct omap_video_timings *timings) |
| { |
| return dpi_check_timings(dssdev, timings); |
| } |
| |
| static struct omap_dss_driver generic_driver = { |
| .probe = generic_panel_probe, |
| .remove = generic_panel_remove, |
| |
| .enable = generic_panel_enable, |
| .disable = generic_panel_disable, |
| .suspend = generic_panel_suspend, |
| .resume = generic_panel_resume, |
| |
| .set_timings = generic_panel_set_timings, |
| .get_timings = generic_panel_get_timings, |
| .check_timings = generic_panel_check_timings, |
| |
| .driver = { |
| .name = "generic_panel", |
| .owner = THIS_MODULE, |
| }, |
| }; |
| |
| static int __init generic_panel_drv_init(void) |
| { |
| return omap_dss_register_driver(&generic_driver); |
| } |
| |
| static void __exit generic_panel_drv_exit(void) |
| { |
| omap_dss_unregister_driver(&generic_driver); |
| } |
| |
| module_init(generic_panel_drv_init); |
| module_exit(generic_panel_drv_exit); |
| MODULE_LICENSE("GPL"); |