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 <mach/board-rx51.h>
  24
  25 #include "mux.h"
  26
  27 #define RX51_LCD_RESET_GPIO     90
  28
  29 #if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
  30
  31 static int rx51_lcd_enable(struct omap_dss_device *dssdev)
  32 {
  33         gpio_set_value(dssdev->reset_gpio, 1);
  34         return 0;
  35 }
  36
  37 static void rx51_lcd_disable(struct omap_dss_device *dssdev)
  38 {
  39         gpio_set_value(dssdev->reset_gpio, 0);
  40 }
  41
  42 static struct omap_dss_device rx51_lcd_device = {
  43         .name                   = "lcd",
  44         .driver_name            = "panel-acx565akm",
  45         .type                   = OMAP_DISPLAY_TYPE_SDI,
  46         .phy.sdi.datapairs      = 2,
  47         .reset_gpio             = RX51_LCD_RESET_GPIO,
  48         .platform_enable        = rx51_lcd_enable,
  49         .platform_disable       = rx51_lcd_disable,
  50 };
  51
  52 static struct omap_dss_device *rx51_dss_devices[] = {
  53         &rx51_lcd_device,
  54 };
  55
  56 static struct omap_dss_board_info rx51_dss_board_info = {
  57         .num_devices    = ARRAY_SIZE(rx51_dss_devices),
  58         .devices        = rx51_dss_devices,
  59         .default_device = &rx51_lcd_device,
  60 };
  61
  62 struct platform_device rx51_display_device = {
  63         .name   = "omapdss",
  64         .id     = -1,
  65         .dev    = {
  66                 .platform_data = &rx51_dss_board_info,
  67         },
  68 };
  69
  70 static struct platform_device *rx51_video_devices[] __initdata = {
  71         &rx51_display_device,
  72 };
  73
  74 static int __init rx51_video_init(void)
  75 {
  76         if (!machine_is_nokia_rx51())
  77                 return 0;
  78
  79         if (omap_mux_init_gpio(RX51_LCD_RESET_GPIO, OMAP_PIN_OUTPUT)) {
  80                 pr_err("%s cannot configure MUX for LCD RESET\n", __func__);
  81                 return 0;
  82         }
  83
  84         if (gpio_request(RX51_LCD_RESET_GPIO, "LCD ACX565AKM reset")) {
  85                 pr_err("%s failed to get LCD Reset GPIO\n", __func__);
  86                 return 0;
  87         }
  88
  89         gpio_direction_output(RX51_LCD_RESET_GPIO, 1);
  90
  91         platform_add_devices(rx51_video_devices,
  92                                 ARRAY_SIZE(rx51_video_devices));
  93         return 0;
  94 }
  95
  96 subsys_initcall(rx51_video_init);
  97
  98 void __init rx51_video_mem_init(void)
  99 {
 100         /*
 101          * GFX 864x480x32bpp
 102          * VID1/2 1280x720x32bpp double buffered
 103          */
 104         omap_vram_set_sdram_vram(PAGE_ALIGN(864 * 480 * 4) +
 105                         2 * PAGE_ALIGN(1280 * 720 * 4 * 2), 0);
 106 }
 107
 108 #else
 109 void __init rx51_video_mem_init(void) { }
 110 #endif /* defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) */