drivers/video/omap/lcd_ams_delta.c

   1 /*
   2  * File: drivers/video/omap/lcd_ams_delta.c
   3  *
   4  * Based on drivers/video/omap/lcd_inn1510.c
   5  *
   6  * LCD panel support for the Amstrad E3 (Delta) videophone.
   7  *
   8  * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU General Public License as published by the
  12  * Free Software Foundation; either version 2 of the License, or (at your
  13  * option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  23  */
  24
  25 #include <linux/module.h>
  26 #include <linux/platform_device.h>
  27
  28 #include <asm/delay.h>
  29 #include <asm/io.h>
  30
  31 #include <mach/board-ams-delta.h>
  32 #include <mach/hardware.h>
  33 #include <mach/omapfb.h>
  34
  35 #define AMS_DELTA_DEFAULT_CONTRAST      112
  36
  37 static int ams_delta_panel_init(struct lcd_panel *panel,
  38                 struct omapfb_device *fbdev)
  39 {
  40         return 0;
  41 }
  42
  43 static void ams_delta_panel_cleanup(struct lcd_panel *panel)
  44 {
  45 }
  46
  47 static int ams_delta_panel_enable(struct lcd_panel *panel)
  48 {
  49         ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP,
  50                         AMS_DELTA_LATCH2_LCD_NDISP);
  51         ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN,
  52                         AMS_DELTA_LATCH2_LCD_VBLEN);
  53
  54         omap_writeb(1, OMAP_PWL_CLK_ENABLE);
  55         omap_writeb(AMS_DELTA_DEFAULT_CONTRAST, OMAP_PWL_ENABLE);
  56
  57         return 0;
  58 }
  59
  60 static void ams_delta_panel_disable(struct lcd_panel *panel)
  61 {
  62         ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN, 0);
  63         ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP, 0);
  64 }
  65
  66 static unsigned long ams_delta_panel_get_caps(struct lcd_panel *panel)
  67 {
  68         return 0;
  69 }
  70
  71 static struct lcd_panel ams_delta_panel = {
  72         .name           = "ams-delta",
  73         .config         = 0,
  74
  75         .bpp            = 12,
  76         .data_lines     = 16,
  77         .x_res          = 480,
  78         .y_res          = 320,
  79         .pixel_clock    = 4687,
  80         .hsw            = 3,
  81         .hfp            = 1,
  82         .hbp            = 1,
  83         .vsw            = 1,
  84         .vfp            = 0,
  85         .vbp            = 0,
  86         .pcd            = 0,
  87         .acb            = 37,
  88
  89         .init           = ams_delta_panel_init,
  90         .cleanup        = ams_delta_panel_cleanup,
  91         .enable         = ams_delta_panel_enable,
  92         .disable        = ams_delta_panel_disable,
  93         .get_caps       = ams_delta_panel_get_caps,
  94 };
  95
  96 static int ams_delta_panel_probe(struct platform_device *pdev)
  97 {
  98         omapfb_register_panel(&ams_delta_panel);
  99         return 0;
 100 }
 101
 102 static int ams_delta_panel_remove(struct platform_device *pdev)
 103 {
 104         return 0;
 105 }
 106
 107 static int ams_delta_panel_suspend(struct platform_device *pdev,
 108                 pm_message_t mesg)
 109 {
 110         return 0;
 111 }
 112
 113 static int ams_delta_panel_resume(struct platform_device *pdev)
 114 {
 115         return 0;
 116 }
 117
 118 struct platform_driver ams_delta_panel_driver = {
 119         .probe          = ams_delta_panel_probe,
 120         .remove         = ams_delta_panel_remove,
 121         .suspend        = ams_delta_panel_suspend,
 122         .resume         = ams_delta_panel_resume,
 123         .driver         = {
 124                 .name   = "lcd_ams_delta",
 125                 .owner  = THIS_MODULE,
 126         },
 127 };
 128
 129 static int ams_delta_panel_drv_init(void)
 130 {
 131         return platform_driver_register(&ams_delta_panel_driver);
 132 }
 133
 134 static void ams_delta_panel_drv_cleanup(void)
 135 {
 136         platform_driver_unregister(&ams_delta_panel_driver);
 137 }
 138
 139 module_init(ams_delta_panel_drv_init);
 140 module_exit(ams_delta_panel_drv_cleanup);