LXR linux/drivers/video/omap/lcd

   1/*
   2 * LCD panel support for the TI OMAP H3 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#include <linux/i2c/tps65010.h>
  25
  26#include <mach/gpio.h>
  27#include <mach/omapfb.h>
  28
  29#define MODULE_NAME     "omapfb-lcd_h3"
  30
  31static int h3_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
  32{
  33        return 0;
  34}
  35
  36static void h3_panel_cleanup(struct lcd_panel *panel)
  37{
  38}
  39
  40static int h3_panel_enable(struct lcd_panel *panel)
  41{
  42        int r = 0;
  43
  44        /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
  45        r = tps65010_set_gpio_out_value(GPIO1, HIGH);
  46        if (!r)
  47                r = tps65010_set_gpio_out_value(GPIO2, HIGH);
  48        if (r)
  49                pr_err(MODULE_NAME ": Unable to turn on LCD panel\n");
  50
  51        return r;
  52}
  53
  54static void h3_panel_disable(struct lcd_panel *panel)
  55{
  56        int r = 0;
  57
  58        /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
  59        r = tps65010_set_gpio_out_value(GPIO1, LOW);
  60        if (!r)
  61                tps65010_set_gpio_out_value(GPIO2, LOW);
  62        if (r)
  63                pr_err(MODULE_NAME ": Unable to turn off LCD panel\n");
  64}
  65
  66static unsigned long h3_panel_get_caps(struct lcd_panel *panel)
  67{
  68        return 0;
  69}
  70
  71struct lcd_panel h3_panel = {
  72        .name           = "h3",
  73        .config         = OMAP_LCDC_PANEL_TFT,
  74
  75        .data_lines     = 16,
  76        .bpp            = 16,
  77        .x_res          = 240,
  78        .y_res          = 320,
  79        .pixel_clock    = 12000,
  80        .hsw            = 12,
  81        .hfp            = 14,
  82        .hbp            = 72 - 12,
  83        .vsw            = 1,
  84        .vfp            = 1,
  85        .vbp            = 0,
  86        .pcd            = 0,
  87
  88        .init           = h3_panel_init,
  89        .cleanup        = h3_panel_cleanup,
  90        .enable         = h3_panel_enable,
  91        .disable        = h3_panel_disable,
  92        .get_caps       = h3_panel_get_caps,
  93};
  94
  95static int h3_panel_probe(struct platform_device *pdev)
  96{
  97        omapfb_register_panel(&h3_panel);
  98        return 0;
  99}
 100
 101static int h3_panel_remove(struct platform_device *pdev)
 102{
 103        return 0;
 104}
 105
 106static int h3_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
 107{
 108        return 0;
 109}
 110
 111static int h3_panel_resume(struct platform_device *pdev)
 112{
 113        return 0;
 114}
 115
 116struct platform_driver h3_panel_driver = {
 117        .probe          = h3_panel_probe,
 118        .remove         = h3_panel_remove,
 119        .suspend        = h3_panel_suspend,
 120        .resume         = h3_panel_resume,
 121        .driver         = {
 122                .name   = "lcd_h3",
 123                .owner  = THIS_MODULE,
 124        },
 125};
 126
 127static int __init h3_panel_drv_init(void)
 128{
 129        return platform_driver_register(&h3_panel_driver);
 130}
 131
 132static void __exit h3_panel_drv_cleanup(void)
 133{
 134        platform_driver_unregister(&h3_panel_driver);
 135}
 136
 137module_init(h3_panel_drv_init);
 138module_exit(h3_panel_drv_cleanup);
 139
 140