drivers/video/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
  25 #include <asm/arch/gpio.h>
  26 #include <asm/arch/tps65010.h>
  27 #include <asm/arch/omapfb.h>
  28
  29 #define MODULE_NAME     "omapfb-lcd_h3"
  30
  31 #define pr_err(fmt, args...) printk(KERN_ERR MODULE_NAME ": " fmt, ## args)
  32
  33 static int h3_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
  34 {
  35         return 0;
  36 }
  37
  38 static void h3_panel_cleanup(struct lcd_panel *panel)
  39 {
  40 }
  41
  42 static int h3_panel_enable(struct lcd_panel *panel)
  43 {
  44         int r = 0;
  45
  46         /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
  47         r = tps65010_set_gpio_out_value(GPIO1, HIGH);
  48         if (!r)
  49                 r = tps65010_set_gpio_out_value(GPIO2, HIGH);
  50         if (r)
  51                 pr_err("Unable to turn on LCD panel\n");
  52
  53         return r;
  54 }
  55
  56 static void h3_panel_disable(struct lcd_panel *panel)
  57 {
  58         int r = 0;
  59
  60         /* GPIO1 and GPIO2 of TPS65010 send LCD_ENBKL and LCD_ENVDD signals */
  61         r = tps65010_set_gpio_out_value(GPIO1, LOW);
  62         if (!r)
  63                 tps65010_set_gpio_out_value(GPIO2, LOW);
  64         if (r)
  65                 pr_err("Unable to turn off LCD panel\n");
  66 }
  67
  68 static unsigned long h3_panel_get_caps(struct lcd_panel *panel)
  69 {
  70         return 0;
  71 }
  72
  73 struct lcd_panel h3_panel = {
  74         .name           = "h3",
  75         .config         = OMAP_LCDC_PANEL_TFT,
  76
  77         .data_lines     = 16,
  78         .bpp            = 16,
  79         .x_res          = 240,
  80         .y_res          = 320,
  81         .pixel_clock    = 12000,
  82         .hsw            = 12,
  83         .hfp            = 14,
  84         .hbp            = 72 - 12,
  85         .vsw            = 1,
  86         .vfp            = 1,
  87         .vbp            = 0,
  88         .pcd            = 0,
  89
  90         .init           = h3_panel_init,
  91         .cleanup        = h3_panel_cleanup,
  92         .enable         = h3_panel_enable,
  93         .disable        = h3_panel_disable,
  94         .get_caps       = h3_panel_get_caps,
  95 };
  96
  97 static int h3_panel_probe(struct platform_device *pdev)
  98 {
  99         omapfb_register_panel(&h3_panel);
 100         return 0;
 101 }
 102
 103 static int h3_panel_remove(struct platform_device *pdev)
 104 {
 105         return 0;
 106 }
 107
 108 static int h3_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
 109 {
 110         return 0;
 111 }
 112
 113 static int h3_panel_resume(struct platform_device *pdev)
 114 {
 115         return 0;
 116 }
 117
 118 struct platform_driver h3_panel_driver = {
 119         .probe          = h3_panel_probe,
 120         .remove         = h3_panel_remove,
 121         .suspend        = h3_panel_suspend,
 122         .resume         = h3_panel_resume,
 123         .driver         = {
 124                 .name   = "lcd_h3",
 125                 .owner  = THIS_MODULE,
 126         },
 127 };
 128
 129 static int h3_panel_drv_init(void)
 130 {
 131         return platform_driver_register(&h3_panel_driver);
 132 }
 133
 134 static void h3_panel_drv_cleanup(void)
 135 {
 136         platform_driver_unregister(&h3_panel_driver);
 137 }
 138
 139 module_init(h3_panel_drv_init);
 140 module_exit(h3_panel_drv_cleanup);
 141