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
  26 #include <asm/arch/gpio.h>
  27 #include <asm/arch/omapfb.h>
  28
  29 /* #define OMAPFB_DBG 1 */
  30
  31 #include "debug.h"
  32
  33 #define MODULE_NAME     "omapfb-lcd_h3"
  34
  35 #define pr_err(fmt, args...) printk(KERN_ERR MODULE_NAME ": " fmt, ## args)
  36
  37 static int innovator1610_panel_init(struct omapfb_device *fbdev)
  38 {
  39         int r = 0;
  40
  41         DBGENTER(1);
  42
  43         if (omap_request_gpio(14)) {
  44                 pr_err("can't request GPIO 14\n");
  45                 r = -1;
  46                 goto exit;
  47         }
  48         if (omap_request_gpio(15)) {
  49                 pr_err("can't request GPIO 15\n");
  50                 omap_free_gpio(14);
  51                 r = -1;
  52                 goto exit;
  53         }
  54         /* configure GPIO(14, 15) as outputs */
  55         omap_set_gpio_direction(14, 0);
  56         omap_set_gpio_direction(15, 0);
  57 exit:
  58         DBGLEAVE(1);
  59         return r;
  60 }
  61
  62 static void innovator1610_panel_cleanup(void)
  63 {
  64         DBGENTER(1);
  65
  66         omap_free_gpio(15);
  67         omap_free_gpio(14);
  68
  69         DBGLEAVE(1);
  70 }
  71
  72 static int innovator1610_panel_enable(void)
  73 {
  74         DBGENTER(1);
  75
  76         /* set GPIO14 and GPIO15 high */
  77         omap_set_gpio_dataout(14, 1);
  78         omap_set_gpio_dataout(15, 1);
  79
  80         DBGLEAVE(1);
  81         return 0;
  82 }
  83
  84 static void innovator1610_panel_disable(void)
  85 {
  86         DBGENTER(1);
  87
  88         /* set GPIO13, GPIO14 and GPIO15 low */
  89         omap_set_gpio_dataout(14, 0);
  90         omap_set_gpio_dataout(15, 0);
  91
  92         DBGLEAVE(1);
  93 }
  94
  95 static unsigned long innovator1610_panel_get_caps(void)
  96 {
  97         return 0;
  98 }
  99
 100 struct lcd_panel innovator1610_panel = {
 101         .name           = "inn1610",
 102         .config         = OMAP_LCDC_PANEL_TFT,
 103
 104         .bpp            = 16,
 105         .data_lines     = 16,
 106         .x_res          = 320,
 107         .y_res          = 240,
 108         .pixel_clock    = 12500,
 109         .hsw            = 40,
 110         .hfp            = 40,
 111         .hbp            = 72,
 112         .vsw            = 1,
 113         .vfp            = 1,
 114         .vbp            = 0,
 115         .pcd            = 12,
 116
 117         .init           = innovator1610_panel_init,
 118         .cleanup        = innovator1610_panel_cleanup,
 119         .enable         = innovator1610_panel_enable,
 120         .disable        = innovator1610_panel_disable,
 121         .get_caps       = innovator1610_panel_get_caps,
 122 };
 123
 124 static int innovator1610_panel_probe(struct platform_device *pdev)
 125 {
 126         DBGENTER(1);
 127         omapfb_register_panel(&innovator1610_panel);
 128         return 0;
 129 }
 130
 131 static int innovator1610_panel_remove(struct platform_device *pdev)
 132 {
 133         DBGENTER(1);
 134         return 0;
 135 }
 136
 137 static int innovator1610_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
 138 {
 139         DBGENTER(1);
 140         return 0;
 141 }
 142
 143 static int innovator1610_panel_resume(struct platform_device *pdev)
 144 {
 145         DBGENTER(1);
 146         return 0;
 147 }
 148
 149 struct platform_driver innovator1610_panel_driver = {
 150         .probe          = innovator1610_panel_probe,
 151         .remove         = innovator1610_panel_remove,
 152         .suspend        = innovator1610_panel_suspend,
 153         .resume         = innovator1610_panel_resume,
 154         .driver         = {
 155                 .name   = "lcd_inn1610",
 156                 .owner  = THIS_MODULE,
 157         },
 158 };
 159
 160 static int innovator1610_panel_drv_init(void)
 161 {
 162         return platform_driver_register(&innovator1610_panel_driver);
 163 }
 164
 165 static void innovator1610_panel_drv_cleanup(void)
 166 {
 167         platform_driver_unregister(&innovator1610_panel_driver);
 168 }
 169
 170 module_init(innovator1610_panel_drv_init);
 171 module_exit(innovator1610_panel_drv_cleanup);
 172