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/mux.h>
  20 #include <plat/display.h>
  21 #include <plat/vram.h>
  22 #include <plat/mcspi.h>
  23
  24 #include "mux.h"
  25
  26 #define RX51_LCD_RESET_GPIO     90
  27
  28 #if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
  29
  30 static int rx51_lcd_enable(struct omap_dss_device *dssdev)
  31 {
  32         gpio_set_value(dssdev->reset_gpio, 1);
  33         return 0;
  34 }
  35
  36 static void rx51_lcd_disable(struct omap_dss_device *dssdev)
  37 {
  38         gpio_set_value(dssdev->reset_gpio, 0);
  39 }
  40
  41 static struct omap_dss_device rx51_lcd_device = {
  42         .name                   = "lcd",
  43         .driver_name            = "panel-acx565akm",
  44         .type                   = OMAP_DISPLAY_TYPE_SDI,
  45         .phy.sdi.datapairs      = 2,
  46         .reset_gpio             = RX51_LCD_RESET_GPIO,
  47         .platform_enable        = rx51_lcd_enable,
  48         .platform_disable       = rx51_lcd_disable,
  49 };
  50
  51 static struct omap_dss_device *rx51_dss_devices[] = {
  52         &rx51_lcd_device,
  53 };
  54
  55 static struct omap_dss_board_info rx51_dss_board_info = {
  56         .num_devices    = ARRAY_SIZE(rx51_dss_devices),
  57         .devices        = rx51_dss_devices,
  58         .default_device = &rx51_lcd_device,
  59 };
  60
  61 struct platform_device rx51_display_device = {
  62         .name   = "omapdss",
  63         .id     = -1,
  64         .dev    = {
  65                 .platform_data = &rx51_dss_board_info,
  66         },
  67 };
  68
  69 static struct platform_device *rx51_video_devices[] __initdata = {
  70         &rx51_display_device,
  71 };
  72
  73 static int __init rx51_video_init(void)
  74 {
  75         if (!machine_is_nokia_rx51())
  76                 return 0;
  77
  78         if (omap_mux_init_gpio(RX51_LCD_RESET_GPIO, OMAP_PIN_OUTPUT)) {
  79                 pr_err("%s cannot configure MUX for LCD RESET\n", __func__);
  80                 return 0;
  81         }
  82
  83         if (gpio_request(RX51_LCD_RESET_GPIO, "LCD ACX565AKM reset")) {
  84                 pr_err("%s failed to get LCD Reset GPIO\n", __func__);
  85                 return 0;
  86         }
  87
  88         gpio_direction_output(RX51_LCD_RESET_GPIO, 1);
  89
  90         platform_add_devices(rx51_video_devices,
  91                                 ARRAY_SIZE(rx51_video_devices));
  92         return 0;
  93 }
  94
  95 subsys_initcall(rx51_video_init);
  96
  97 void __init rx51_video_mem_init(void)
  98 {
  99         /*
 100          * GFX 864x480x32bpp
 101          * VID1/2 1280x720x32bpp double buffered
 102          */
 103         omap_vram_set_sdram_vram(PAGE_ALIGN(864 * 480 * 4) +
 104                         2 * PAGE_ALIGN(1280 * 720 * 4 * 2), 0);
 105 }
 106
 107 #else
 108 void __init rx51_video_mem_init(void) { }
 109 #endif /* defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) */