drivers/video/omap/lcd_inn1610.c

   1 /*
   2  * File: drivers/video/omap/lcd-inn1610.c
   3  *
   4  * LCD panel support for the TI OMAP1610 Innovator board
   5  *
   6  * Copyright (C) 2004 Nokia Corporation
   7  * Author: Imre Deak <imre.deak@nokia.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License as published by the
  11  * Free Software Foundation; either version 2 of the License, or (at your
  12  * option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22  */
  23
  24 #include <linux/module.h>
  25 #include <linux/platform_device.h>
  26
  27 #include <asm/arch/gpio.h>
  28 #include <asm/arch/omapfb.h>
  29
  30 #define MODULE_NAME     "omapfb-lcd_h3"
  31
  32 #define pr_err(fmt, args...) printk(KERN_ERR MODULE_NAME ": " fmt, ## args)
  33
  34 static int innovator1610_panel_init(struct lcd_panel *panel,
  35                                     struct omapfb_device *fbdev)
  36 {
  37         int r = 0;
  38
  39         if (omap_request_gpio(14)) {
  40                 pr_err("can't request GPIO 14\n");
  41                 r = -1;
  42                 goto exit;
  43         }
  44         if (omap_request_gpio(15)) {
  45                 pr_err("can't request GPIO 15\n");
  46                 omap_free_gpio(14);
  47                 r = -1;
  48                 goto exit;
  49         }
  50         /* configure GPIO(14, 15) as outputs */
  51         omap_set_gpio_direction(14, 0);
  52         omap_set_gpio_direction(15, 0);
  53 exit:
  54         return r;
  55 }
  56
  57 static void innovator1610_panel_cleanup(struct lcd_panel *panel)
  58 {
  59         omap_free_gpio(15);
  60         omap_free_gpio(14);
  61 }
  62
  63 static int innovator1610_panel_enable(struct lcd_panel *panel)
  64 {
  65         /* set GPIO14 and GPIO15 high */
  66         omap_set_gpio_dataout(14, 1);
  67         omap_set_gpio_dataout(15, 1);
  68         return 0;
  69 }
  70
  71 static void innovator1610_panel_disable(struct lcd_panel *panel)
  72 {
  73         /* set GPIO13, GPIO14 and GPIO15 low */
  74         omap_set_gpio_dataout(14, 0);
  75         omap_set_gpio_dataout(15, 0);
  76 }
  77
  78 static unsigned long innovator1610_panel_get_caps(struct lcd_panel *panel)
  79 {
  80         return 0;
  81 }
  82
  83 struct lcd_panel innovator1610_panel = {
  84         .name           = "inn1610",
  85         .config         = OMAP_LCDC_PANEL_TFT,
  86
  87         .bpp            = 16,
  88         .data_lines     = 16,
  89         .x_res          = 320,
  90         .y_res          = 240,
  91         .pixel_clock    = 12500,
  92         .hsw            = 40,
  93         .hfp            = 40,
  94         .hbp            = 72,
  95         .vsw            = 1,
  96         .vfp            = 1,
  97         .vbp            = 0,
  98         .pcd            = 12,
  99
 100         .init           = innovator1610_panel_init,
 101         .cleanup        = innovator1610_panel_cleanup,
 102         .enable         = innovator1610_panel_enable,
 103         .disable        = innovator1610_panel_disable,
 104         .get_caps       = innovator1610_panel_get_caps,
 105 };
 106
 107 static int innovator1610_panel_probe(struct platform_device *pdev)
 108 {
 109         omapfb_register_panel(&innovator1610_panel);
 110         return 0;
 111 }
 112
 113 static int innovator1610_panel_remove(struct platform_device *pdev)
 114 {
 115         return 0;
 116 }
 117
 118 static int innovator1610_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
 119 {
 120         return 0;
 121 }
 122
 123 static int innovator1610_panel_resume(struct platform_device *pdev)
 124 {
 125         return 0;
 126 }
 127
 128 struct platform_driver innovator1610_panel_driver = {
 129         .probe          = innovator1610_panel_probe,
 130         .remove         = innovator1610_panel_remove,
 131         .suspend        = innovator1610_panel_suspend,
 132         .resume         = innovator1610_panel_resume,
 133         .driver         = {
 134                 .name   = "lcd_inn1610",
 135                 .owner  = THIS_MODULE,
 136         },
 137 };
 138
 139 static int innovator1610_panel_drv_init(void)
 140 {
 141         return platform_driver_register(&innovator1610_panel_driver);
 142 }
 143
 144 static void innovator1610_panel_drv_cleanup(void)
 145 {
 146         platform_driver_unregister(&innovator1610_panel_driver);
 147 }
 148
 149 module_init(innovator1610_panel_drv_init);
 150 module_exit(innovator1610_panel_drv_cleanup);
 151