arch/arm/plat-omap/fb.c

   1 /*
   2  * File: arch/arm/plat-omap/fb.c
   3  *
   4  * Framebuffer device registration for TI OMAP platforms
   5  *
   6  * Copyright (C) 2006 Nokia Corporation
   7  * Author: Imre Deak <imre.deak@nokia.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License as published by the
  11  * Free Software Foundation; either version 2 of the License, or (at your
  12  * option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22  */
  23
  24 #include <linux/module.h>
  25 #include <linux/kernel.h>
  26 #include <linux/mm.h>
  27 #include <linux/init.h>
  28 #include <linux/platform_device.h>
  29 #include <linux/memblock.h>
  30 #include <linux/io.h>
  31 #include <linux/omapfb.h>
  32
  33 #include <mach/hardware.h>
  34 #include <asm/mach/map.h>
  35
  36 #include <plat/board.h>
  37
  38 #if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
  39
  40 static bool omapfb_lcd_configured;
  41 static struct omapfb_platform_data omapfb_config;
  42
  43 static u64 omap_fb_dma_mask = ~(u32)0;
  44
  45 static struct platform_device omap_fb_device = {
  46         .name           = "omapfb",
  47         .id             = -1,
  48         .dev = {
  49                 .dma_mask               = &omap_fb_dma_mask,
  50                 .coherent_dma_mask      = ~(u32)0,
  51                 .platform_data          = &omapfb_config,
  52         },
  53         .num_resources = 0,
  54 };
  55
  56 void __init omapfb_set_lcd_config(const struct omap_lcd_config *config)
  57 {
  58         omapfb_config.lcd = *config;
  59         omapfb_lcd_configured = true;
  60 }
  61
  62 static int __init omap_init_fb(void)
  63 {
  64         /*
  65          * If the board file has not set the lcd config with
  66          * omapfb_set_lcd_config(), don't bother registering the omapfb device
  67          */
  68         if (!omapfb_lcd_configured)
  69                 return 0;
  70
  71         return platform_device_register(&omap_fb_device);
  72 }
  73
  74 arch_initcall(omap_init_fb);
  75
  76 #elif defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
  77
  78 static u64 omap_fb_dma_mask = ~(u32)0;
  79 static struct omapfb_platform_data omapfb_config;
  80
  81 static struct platform_device omap_fb_device = {
  82         .name           = "omapfb",
  83         .id             = -1,
  84         .dev = {
  85                 .dma_mask               = &omap_fb_dma_mask,
  86                 .coherent_dma_mask      = ~(u32)0,
  87                 .platform_data          = &omapfb_config,
  88         },
  89         .num_resources = 0,
  90 };
  91
  92 static int __init omap_init_fb(void)
  93 {
  94         return platform_device_register(&omap_fb_device);
  95 }
  96
  97 arch_initcall(omap_init_fb);
  98
  99 #else
 100
 101 void __init omapfb_set_lcd_config(const struct omap_lcd_config *config)
 102 {
 103 }
 104
 105 #endif