linux/arch/arm/mach-omap2/board-zoom-display.c

/*
 * Copyright (C) 2010 Texas Instruments Inc.
 *
 * Modified from mach-omap2/board-zoom-peripherals.c
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/spi/spi.h>
#include <linux/platform_data/spi-omap2-mcspi.h>
#include <video/omapdss.h>
#include "board-zoom.h"

#include "soc.h"
#include "common.h"

#define LCD_PANEL_RESET_GPIO_PROD	96
#define LCD_PANEL_RESET_GPIO_PILOT	55
#define LCD_PANEL_QVGA_GPIO		56

static struct gpio zoom_lcd_gpios[] __initdata = {
	{ -EINVAL,		GPIOF_OUT_INIT_HIGH, "lcd reset" },
	{ LCD_PANEL_QVGA_GPIO,	GPIOF_OUT_INIT_HIGH, "lcd qvga"	 },
};

static void __init zoom_lcd_panel_init(void)
{
	zoom_lcd_gpios[0].gpio = (omap_rev() > OMAP3430_REV_ES3_0) ?
			LCD_PANEL_RESET_GPIO_PROD :
			LCD_PANEL_RESET_GPIO_PILOT;

	if (gpio_request_array(zoom_lcd_gpios, ARRAY_SIZE(zoom_lcd_gpios)))
		pr_err("%s: Failed to get LCD GPIOs.\n", __func__);
}

static int zoom_panel_enable_lcd(struct omap_dss_device *dssdev)
{
	return 0;
}

static void zoom_panel_disable_lcd(struct omap_dss_device *dssdev)
{
}

static struct omap_dss_device zoom_lcd_device = {
	.name			= "lcd",
	.driver_name		= "NEC_8048_panel",
	.type			= OMAP_DISPLAY_TYPE_DPI,
	.phy.dpi.data_lines	= 24,
	.platform_enable	= zoom_panel_enable_lcd,
	.platform_disable	= zoom_panel_disable_lcd,
};

static struct omap_dss_device *zoom_dss_devices[] = {
	&zoom_lcd_device,
};

static struct omap_dss_board_info zoom_dss_data = {
	.num_devices		= ARRAY_SIZE(zoom_dss_devices),
	.devices		= zoom_dss_devices,
	.default_device		= &zoom_lcd_device,
};

static struct omap2_mcspi_device_config dss_lcd_mcspi_config = {
	.turbo_mode		= 1,
};

static struct spi_board_info nec_8048_spi_board_info[] __initdata = {
	[0] = {
		.modalias		= "nec_8048_spi",
		.bus_num		= 1,
		.chip_select		= 2,
		.max_speed_hz		= 375000,
		.controller_data	= &dss_lcd_mcspi_config,
	},
};

void __init zoom_display_init(void)
{
	omap_display_init(&zoom_dss_data);
	spi_register_board_info(nec_8048_spi_board_info,
				ARRAY_SIZE(nec_8048_spi_board_info));
	zoom_lcd_panel_init();
}