arch/arm/mach-omap2/board-rx51-video.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-rx51-video.c
   3  *
   4  * Copyright (C) 2010 Nokia
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/gpio.h>
  15 #include <linux/spi/spi.h>
  16 #include <linux/mm.h>
  17
  18 #include <asm/mach-types.h>
  19 #include <plat/display.h>
  20 #include <plat/vram.h>
  21 #include <plat/mcspi.h>
  22
  23 #include "mux.h"
  24
  25 #define RX51_LCD_RESET_GPIO     90
  26
  27 #if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
  28
  29 static int rx51_lcd_enable(struct omap_dss_device *dssdev)
  30 {
  31         gpio_set_value(dssdev->reset_gpio, 1);
  32         return 0;
  33 }
  34
  35 static void rx51_lcd_disable(struct omap_dss_device *dssdev)
  36 {
  37         gpio_set_value(dssdev->reset_gpio, 0);
  38 }
  39
  40 static struct omap_dss_device rx51_lcd_device = {
  41         .name                   = "lcd",
  42         .driver_name            = "panel-acx565akm",
  43         .type                   = OMAP_DISPLAY_TYPE_SDI,
  44         .phy.sdi.datapairs      = 2,
  45         .reset_gpio             = RX51_LCD_RESET_GPIO,
  46         .platform_enable        = rx51_lcd_enable,
  47         .platform_disable       = rx51_lcd_disable,
  48 };
  49
  50 static struct omap_dss_device *rx51_dss_devices[] = {
  51         &rx51_lcd_device,
  52 };
  53
  54 static struct omap_dss_board_info rx51_dss_board_info = {
  55         .num_devices    = ARRAY_SIZE(rx51_dss_devices),
  56         .devices        = rx51_dss_devices,
  57         .default_device = &rx51_lcd_device,
  58 };
  59
  60 struct platform_device rx51_display_device = {
  61         .name   = "omapdss",
  62         .id     = -1,
  63         .dev    = {
  64                 .platform_data = &rx51_dss_board_info,
  65         },
  66 };
  67
  68 static struct platform_device *rx51_video_devices[] __initdata = {
  69         &rx51_display_device,
  70 };
  71
  72 static int __init rx51_video_init(void)
  73 {
  74         if (!machine_is_nokia_rx51())
  75                 return 0;
  76
  77         if (omap_mux_init_gpio(RX51_LCD_RESET_GPIO, OMAP_PIN_OUTPUT)) {
  78                 pr_err("%s cannot configure MUX for LCD RESET\n", __func__);
  79                 return 0;
  80         }
  81
  82         if (gpio_request(RX51_LCD_RESET_GPIO, "LCD ACX565AKM reset")) {
  83                 pr_err("%s failed to get LCD Reset GPIO\n", __func__);
  84                 return 0;
  85         }
  86
  87         gpio_direction_output(RX51_LCD_RESET_GPIO, 1);
  88
  89         platform_add_devices(rx51_video_devices,
  90                                 ARRAY_SIZE(rx51_video_devices));
  91         return 0;
  92 }
  93
  94 subsys_initcall(rx51_video_init);
  95
  96 void __init rx51_video_mem_init(void)
  97 {
  98         /*
  99          * GFX 864x480x32bpp
 100          * VID1/2 1280x720x32bpp double buffered
 101          */
 102         omap_vram_set_sdram_vram(PAGE_ALIGN(864 * 480 * 4) +
 103                         2 * PAGE_ALIGN(1280 * 720 * 4 * 2), 0);
 104 }
 105
 106 #else
 107 void __init rx51_video_mem_init(void) { }
 108 #endif /* defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) */