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 #include <asm/mach-types.h>
  18 #include <plat/display.h>
  19 #include <plat/vram.h>
  20 #include <plat/mcspi.h>
  21
  22 #include <mach/board-rx51.h>
  23
  24 #include "mux.h"
  25
  26 #define RX51_LCD_RESET_GPIO     90
  27 /* REVISIT  to verify with rx51.c at sound/soc/omap */
  28 #define RX51_TVOUT_SEL_GPIO     40
  29
  30
  31 #if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
  32
  33 static int rx51_lcd_enable(struct omap_dss_device *dssdev)
  34 {
  35         gpio_set_value(dssdev->reset_gpio, 1);
  36         return 0;
  37 }
  38
  39 static void rx51_lcd_disable(struct omap_dss_device *dssdev)
  40 {
  41         gpio_set_value(dssdev->reset_gpio, 0);
  42 }
  43
  44 static int rx51_tvout_enable(struct omap_dss_device *dssdev)
  45 {
  46         gpio_set_value(dssdev->reset_gpio, 1);
  47         return 0;
  48 }
  49
  50 static void rx51_tvout_disable(struct omap_dss_device *dssdev)
  51 {
  52         gpio_set_value(dssdev->reset_gpio, 0);
  53 }
  54
  55 static struct omap_dss_device rx51_lcd_device = {
  56         .name                   = "lcd",
  57         .driver_name            = "panel-acx565akm",
  58         .type                   = OMAP_DISPLAY_TYPE_SDI,
  59         .phy.sdi.datapairs      = 2,
  60         .reset_gpio             = RX51_LCD_RESET_GPIO,
  61         .platform_enable        = rx51_lcd_enable,
  62         .platform_disable       = rx51_lcd_disable,
  63 };
  64
  65 static struct omap_dss_device  rx51_tv_device = {
  66         .name                   = "tv",
  67         .type                   = OMAP_DISPLAY_TYPE_VENC,
  68         .driver_name            = "venc",
  69         .phy.venc.type          = OMAP_DSS_VENC_TYPE_COMPOSITE,
  70         .reset_gpio             = RX51_TVOUT_SEL_GPIO,
  71         .platform_enable        = rx51_tvout_enable,
  72         .platform_disable       = rx51_tvout_disable,
  73 };
  74
  75 static struct omap_dss_device *rx51_dss_devices[] = {
  76         &rx51_lcd_device,
  77         &rx51_tv_device,
  78 };
  79
  80 static struct omap_dss_board_info rx51_dss_board_info = {
  81         .num_devices    = ARRAY_SIZE(rx51_dss_devices),
  82         .devices        = rx51_dss_devices,
  83         .default_device = &rx51_lcd_device,
  84 };
  85
  86 struct platform_device rx51_display_device = {
  87         .name   = "omapdss",
  88         .id     = -1,
  89         .dev    = {
  90                 .platform_data = &rx51_dss_board_info,
  91         },
  92 };
  93
  94 static struct platform_device *rx51_video_devices[] __initdata = {
  95         &rx51_display_device,
  96 };
  97
  98 static int __init rx51_video_init(void)
  99 {
 100         if (!machine_is_nokia_rx51())
 101                 return 0;
 102
 103         if (omap_mux_init_gpio(RX51_LCD_RESET_GPIO, OMAP_PIN_OUTPUT)) {
 104                 pr_err("%s cannot configure MUX for LCD RESET\n", __func__);
 105                 return 0;
 106         }
 107
 108         if (gpio_request(RX51_LCD_RESET_GPIO, "LCD ACX565AKM reset")) {
 109                 pr_err("%s failed to get LCD Reset GPIO\n", __func__);
 110                 return 0;
 111         }
 112
 113         gpio_direction_output(RX51_LCD_RESET_GPIO, 1);
 114
 115         /* REVISIT  to verify with rx51.c at sound/soc/omap */
 116         gpio_direction_output(RX51_TVOUT_SEL_GPIO, 1);
 117
 118         platform_add_devices(rx51_video_devices,
 119                                 ARRAY_SIZE(rx51_video_devices));
 120         return 0;
 121 }
 122
 123 subsys_initcall(rx51_video_init);
 124
 125 void __init rx51_video_mem_init(void)
 126 {
 127         /*
 128          * GFX 864x480x32bpp
 129          * VID1/2 1280x720x32bpp double buffered
 130          */
 131         omap_vram_set_sdram_vram(PAGE_ALIGN(864 * 480 * 4) +
 132                         2 * PAGE_ALIGN(1280 * 720 * 4 * 2), 0);
 133 }
 134
 135 #else
 136 void __init rx51_video_mem_init(void) { }
 137 #endif /* defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) */