drivers/video/omap/lcd_ams_delta.c

   1 /*
   2  * Based on drivers/video/omap/lcd_inn1510.c
   3  *
   4  * LCD panel support for the Amstrad E3 (Delta) videophone.
   5  *
   6  * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
   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/io.h>
  26 #include <linux/delay.h>
  27
  28 #include <plat/board-ams-delta.h>
  29 #include <mach/hardware.h>
  30
  31 #include "omapfb.h"
  32
  33 #define AMS_DELTA_DEFAULT_CONTRAST      112
  34
  35 static int ams_delta_panel_init(struct lcd_panel *panel,
  36                 struct omapfb_device *fbdev)
  37 {
  38         return 0;
  39 }
  40
  41 static void ams_delta_panel_cleanup(struct lcd_panel *panel)
  42 {
  43 }
  44
  45 static int ams_delta_panel_enable(struct lcd_panel *panel)
  46 {
  47         ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP,
  48                         AMS_DELTA_LATCH2_LCD_NDISP);
  49         ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN,
  50                         AMS_DELTA_LATCH2_LCD_VBLEN);
  51
  52         omap_writeb(1, OMAP_PWL_CLK_ENABLE);
  53         omap_writeb(AMS_DELTA_DEFAULT_CONTRAST, OMAP_PWL_ENABLE);
  54
  55         return 0;
  56 }
  57
  58 static void ams_delta_panel_disable(struct lcd_panel *panel)
  59 {
  60         ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN, 0);
  61         ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP, 0);
  62 }
  63
  64 static unsigned long ams_delta_panel_get_caps(struct lcd_panel *panel)
  65 {
  66         return 0;
  67 }
  68
  69 static struct lcd_panel ams_delta_panel = {
  70         .name           = "ams-delta",
  71         .config         = 0,
  72
  73         .bpp            = 12,
  74         .data_lines     = 16,
  75         .x_res          = 480,
  76         .y_res          = 320,
  77         .pixel_clock    = 4687,
  78         .hsw            = 3,
  79         .hfp            = 1,
  80         .hbp            = 1,
  81         .vsw            = 1,
  82         .vfp            = 0,
  83         .vbp            = 0,
  84         .pcd            = 0,
  85         .acb            = 37,
  86
  87         .init           = ams_delta_panel_init,
  88         .cleanup        = ams_delta_panel_cleanup,
  89         .enable         = ams_delta_panel_enable,
  90         .disable        = ams_delta_panel_disable,
  91         .get_caps       = ams_delta_panel_get_caps,
  92 };
  93
  94 static int ams_delta_panel_probe(struct platform_device *pdev)
  95 {
  96         omapfb_register_panel(&ams_delta_panel);
  97         return 0;
  98 }
  99
 100 static int ams_delta_panel_remove(struct platform_device *pdev)
 101 {
 102         return 0;
 103 }
 104
 105 static int ams_delta_panel_suspend(struct platform_device *pdev,
 106                 pm_message_t mesg)
 107 {
 108         return 0;
 109 }
 110
 111 static int ams_delta_panel_resume(struct platform_device *pdev)
 112 {
 113         return 0;
 114 }
 115
 116 struct platform_driver ams_delta_panel_driver = {
 117         .probe          = ams_delta_panel_probe,
 118         .remove         = ams_delta_panel_remove,
 119         .suspend        = ams_delta_panel_suspend,
 120         .resume         = ams_delta_panel_resume,
 121         .driver         = {
 122                 .name   = "lcd_ams_delta",
 123                 .owner  = THIS_MODULE,
 124         },
 125 };
 126
 127 static int ams_delta_panel_drv_init(void)
 128 {
 129         return platform_driver_register(&ams_delta_panel_driver);
 130 }
 131
 132 static void ams_delta_panel_drv_cleanup(void)
 133 {
 134         platform_driver_unregister(&ams_delta_panel_driver);
 135 }
 136
 137 module_init(ams_delta_panel_drv_init);
 138 module_exit(ams_delta_panel_drv_cleanup);