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

   1 /*
   2  * linux/arch/arm/mach-omap2/board-rx51-video.c
   3  *
   4  * Copyright (C) 2008 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/delay.h>
  15 #include <linux/spi/spi.h>
  16
  17 #include <mach/lcd_mipid.h>
  18 #include <mach/mcspi.h>
  19 #include <mach/gpio.h>
  20 #include <mach/board.h>
  21
  22
  23 static struct omap2_mcspi_device_config mipid_mcspi_config = {
  24         .turbo_mode     = 0,
  25         .single_channel = 1,
  26 };
  27
  28 static struct platform_device rx51_lcd_device = {
  29         .name           = "lcd_mipid",
  30         .id             = -1,
  31 };
  32
  33 static void mipid_shutdown(struct mipid_platform_data *pdata)
  34 {
  35         if (pdata->nreset_gpio != -1) {
  36                 pr_info("shutdown LCD\n");
  37                 gpio_direction_output(pdata->nreset_gpio, 0);
  38                 msleep(120);
  39         }
  40 }
  41
  42 static struct mipid_platform_data rx51_mipid_platform_data = {
  43         .shutdown = mipid_shutdown,
  44 };
  45
  46 static void __init mipid_dev_init(void)
  47 {
  48         const struct omap_lcd_config *conf;
  49
  50         conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
  51         if (conf != NULL) {
  52                 rx51_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
  53                 rx51_mipid_platform_data.data_lines = conf->data_lines;
  54         }
  55 }
  56
  57 static struct spi_board_info rx51_video_spi_board_info[] = {
  58         [0] = {
  59                 .modalias               = "lcd_mipid",
  60                 .bus_num                = 1,
  61                 .chip_select            = 2,
  62                 .max_speed_hz           = 6000000,
  63                 .controller_data        = &mipid_mcspi_config,
  64                 .platform_data          = &rx51_mipid_platform_data,
  65         },
  66 };
  67
  68 static struct platform_device *rx51_video_devices[] = {
  69         &rx51_lcd_device,
  70 };
  71
  72 void __init rx51_video_init(void)
  73 {
  74         platform_add_devices(rx51_video_devices, ARRAY_SIZE(rx51_video_devices));
  75         spi_register_board_info(rx51_video_spi_board_info,
  76                         ARRAY_SIZE(rx51_video_spi_board_info));
  77         mipid_dev_init();
  78 }
  79