drivers/video/fbdev/omap/lcd_h3.c

   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
  31 static 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
  45 static 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
  57 static 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
  78 static int h3_panel_probe(struct platform_device *pdev)
  79 {
  80         omapfb_register_panel(&h3_panel);
  81         return 0;
  82 }
  83
  84 static struct platform_driver h3_panel_driver = {
  85         .probe          = h3_panel_probe,
  86         .driver         = {
  87                 .name   = "lcd_h3",
  88         },
  89 };
  90
  91 module_platform_driver(h3_panel_driver);
  92
  93 MODULE_AUTHOR("Imre Deak");
  94 MODULE_DESCRIPTION("LCD panel support for the TI OMAP H3 board");
  95 MODULE_LICENSE("GPL");