LXR linux/drivers/video/fbdev/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/mfd/tps65010.h>
  25#include <linux/gpio.h>
  26
  27#include "omapfb.h"
  28
  29#define MODULE_NAME     "omapfb-lcd_h3"
  30
  31static int h3_panel_enable(struct lcd_panel *panel)
  32{
  33        int r = 0;
  34
  35        /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
  36        r = tps65010_set_gpio_out_value(GPIO1, HIGH);
  37        if (!r)
  38                r = tps65010_set_gpio_out_value(GPIO2, HIGH);
  39        if (r)
  40                pr_err(MODULE_NAME ": Unable to turn on LCD panel\n");
  41
  42        return r;
  43}
  44
  45static void h3_panel_disable(struct lcd_panel *panel)
  46{
  47        int r = 0;
  48
  49        /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
  50        r = tps65010_set_gpio_out_value(GPIO1, LOW);
  51        if (!r)
  52                tps65010_set_gpio_out_value(GPIO2, LOW);
  53        if (r)
  54                pr_err(MODULE_NAME ": Unable to turn off LCD panel\n");
  55}
  56
  57static struct lcd_panel h3_panel = {
  58        .name           = "h3",
  59        .config         = OMAP_LCDC_PANEL_TFT,
  60
  61        .data_lines     = 16,
  62        .bpp            = 16,
  63        .x_res          = 240,
  64        .y_res          = 320,
  65        .pixel_clock    = 12000,
  66        .hsw            = 12,
  67        .hfp            = 14,
  68        .hbp            = 72 - 12,
  69        .vsw            = 1,
  70        .vfp            = 1,
  71        .vbp            = 0,
  72        .pcd            = 0,
  73
  74        .enable         = h3_panel_enable,
  75        .disable        = h3_panel_disable,
  76};
  77
  78static int h3_panel_probe(struct platform_device *pdev)
  79{
  80        omapfb_register_panel(&h3_panel);
  81        return 0;
  82}
  83
  84static struct platform_driver h3_panel_driver = {
  85        .probe          = h3_panel_probe,
  86        .driver         = {
  87                .name   = "lcd_h3",
  88        },
  89};
  90
  91module_platform_driver(h3_panel_driver);
  92
  93MODULE_AUTHOR("Imre Deak");
  94MODULE_DESCRIPTION("LCD panel support for the TI OMAP H3 board");
  95MODULE_LICENSE("GPL");
  96