LXR linux/drivers/video/omap/lcd

   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
  30static 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        }
  47exit:
  48        return r;
  49}
  50
  51static void innovator1610_panel_cleanup(struct lcd_panel *panel)
  52{
  53        gpio_free(15);
  54        gpio_free(14);
  55}
  56
  57static 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
  65static 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
  72static unsigned long innovator1610_panel_get_caps(struct lcd_panel *panel)
  73{
  74        return 0;
  75}
  76
  77struct 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
 101static int innovator1610_panel_probe(struct platform_device *pdev)
 102{
 103        omapfb_register_panel(&innovator1610_panel);
 104        return 0;
 105}
 106
 107static int innovator1610_panel_remove(struct platform_device *pdev)
 108{
 109        return 0;
 110}
 111
 112static int innovator1610_panel_suspend(struct platform_device *pdev,
 113                                       pm_message_t mesg)
 114{
 115        return 0;
 116}
 117
 118static int innovator1610_panel_resume(struct platform_device *pdev)
 119{
 120        return 0;
 121}
 122
 123static 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                .owner  = THIS_MODULE,
 131        },
 132};
 133
 134module_platform_driver(innovator1610_panel_driver);
 135