kernel/drivers/video/fbdev/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 <linux/gpio.h>
  26 #include "omapfb.h"
  27
  28 #define MODULE_NAME     "omapfb-lcd_h3"
  29
  30 static int innovator1610_panel_init(struct lcd_panel *panel,
  31                                     struct omapfb_device *fbdev)
  32 {
  33         int r = 0;
  34
  35         /* configure GPIO(14, 15) as outputs */
  36         if (gpio_request_one(14, GPIOF_OUT_INIT_LOW, "lcd_en0")) {
  37                 pr_err(MODULE_NAME ": can't request GPIO 14\n");
  38                 r = -1;
  39                 goto exit;
  40         }
  41         if (gpio_request_one(15, GPIOF_OUT_INIT_LOW, "lcd_en1")) {
  42                 pr_err(MODULE_NAME ": can't request GPIO 15\n");
  43                 gpio_free(14);
  44                 r = -1;
  45                 goto exit;
  46         }
  47 exit:
  48         return r;
  49 }
  50
  51 static void innovator1610_panel_cleanup(struct lcd_panel *panel)
  52 {
  53         gpio_free(15);
  54         gpio_free(14);
  55 }
  56
  57 static int innovator1610_panel_enable(struct lcd_panel *panel)
  58 {
  59         /* set GPIO14 and GPIO15 high */
  60         gpio_set_value(14, 1);
  61         gpio_set_value(15, 1);
  62         return 0;
  63 }
  64
  65 static void innovator1610_panel_disable(struct lcd_panel *panel)
  66 {
  67         /* set GPIO13, GPIO14 and GPIO15 low */
  68         gpio_set_value(14, 0);
  69         gpio_set_value(15, 0);
  70 }
  71
  72 static unsigned long innovator1610_panel_get_caps(struct lcd_panel *panel)
  73 {
  74         return 0;
  75 }
  76
  77 struct lcd_panel innovator1610_panel = {
  78         .name           = "inn1610",
  79         .config         = OMAP_LCDC_PANEL_TFT,
  80
  81         .bpp            = 16,
  82         .data_lines     = 16,
  83         .x_res          = 320,
  84         .y_res          = 240,
  85         .pixel_clock    = 12500,
  86         .hsw            = 40,
  87         .hfp            = 40,
  88         .hbp            = 72,
  89         .vsw            = 1,
  90         .vfp            = 1,
  91         .vbp            = 0,
  92         .pcd            = 12,
  93
  94         .init           = innovator1610_panel_init,
  95         .cleanup        = innovator1610_panel_cleanup,
  96         .enable         = innovator1610_panel_enable,
  97         .disable        = innovator1610_panel_disable,
  98         .get_caps       = innovator1610_panel_get_caps,
  99 };
 100
 101 static int innovator1610_panel_probe(struct platform_device *pdev)
 102 {
 103         omapfb_register_panel(&innovator1610_panel);
 104         return 0;
 105 }
 106
 107 static int innovator1610_panel_remove(struct platform_device *pdev)
 108 {
 109         return 0;
 110 }
 111
 112 static int innovator1610_panel_suspend(struct platform_device *pdev,
 113                                        pm_message_t mesg)
 114 {
 115         return 0;
 116 }
 117
 118 static int innovator1610_panel_resume(struct platform_device *pdev)
 119 {
 120         return 0;
 121 }
 122
 123 static struct platform_driver innovator1610_panel_driver = {
 124         .probe          = innovator1610_panel_probe,
 125         .remove         = innovator1610_panel_remove,
 126         .suspend        = innovator1610_panel_suspend,
 127         .resume         = innovator1610_panel_resume,
 128         .driver         = {
 129                 .name   = "lcd_inn1610",
 130         },
 131 };
 132
 133 module_platform_driver(innovator1610_panel_driver);