setup-fb-24bpp.c

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/* linux/arch/arm/plat-s5pv210/setup-fb-24bpp.c
 *
 * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
 *      http://www.samsung.com/
 *
 * Base s5pv210 setup information for 24bpp LCD framebuffer
 *
 * 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/types.h>
#include <linux/fb.h>
#include <linux/gpio.h>

#include <mach/map.h>
#include <plat/fb.h>
#include <mach/regs-clock.h>
#include <plat/gpio-cfg.h>

static void s5pv210_fb_cfg_gpios(unsigned int base, unsigned int nr)
{
    s3c_gpio_cfgrange_nopull(base, nr, S3C_GPIO_SFN(2));

    for (; nr > 0; nr--, base++)
        s5p_gpio_set_drvstr(base, S5P_GPIO_DRVSTR_LV4);
}


void s5pv210_fb_gpio_setup_24bpp(void)
{
    s5pv210_fb_cfg_gpios(S5PV210_GPF0(0), 8);
    s5pv210_fb_cfg_gpios(S5PV210_GPF1(0), 8);
    s5pv210_fb_cfg_gpios(S5PV210_GPF2(0), 8);
    s5pv210_fb_cfg_gpios(S5PV210_GPF3(0), 4);

    /* Set DISPLAY_CONTROL register for Display path selection.
     *
     * ouput   |   RGB   |   I80   |   ITU
     * -----------------------------------
     *  00     |   MIE   |  FIMD   |  FIMD
     *  01     | MDNIE   | MDNIE   |  FIMD
     *  10     |  FIMD   |  FIMD   |  FIMD
     *  11     |  FIMD   |  FIMD   |  FIMD
     */
    writel(0x2, S5P_MDNIE_SEL);
}