drivers/video/omap/lcd_inn1610.c

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