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