LXR linux/arch/arm/mach-s5pv210/setup-fb-24bpp.c

   1/* linux/arch/arm/plat-s5pv210/setup-fb-24bpp.c
   2 *
   3 * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
   4 *              http://www.samsung.com/
   5 *
   6 * Base s5pv210 setup information for 24bpp LCD framebuffer
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License version 2 as
  10 * published by the Free Software Foundation.
  11 */
  12
  13#include <linux/kernel.h>
  14#include <linux/types.h>
  15#include <linux/fb.h>
  16#include <linux/gpio.h>
  17
  18#include <mach/regs-fb.h>
  19#include <mach/map.h>
  20#include <plat/fb.h>
  21#include <mach/regs-clock.h>
  22#include <plat/gpio-cfg.h>
  23
  24static void s5pv210_fb_cfg_gpios(unsigned int base, unsigned int nr)
  25{
  26        s3c_gpio_cfgrange_nopull(base, nr, S3C_GPIO_SFN(2));
  27
  28        for (; nr > 0; nr--, base++)
  29                s5p_gpio_set_drvstr(base, S5P_GPIO_DRVSTR_LV4);
  30}
  31
  32
  33void s5pv210_fb_gpio_setup_24bpp(void)
  34{
  35        s5pv210_fb_cfg_gpios(S5PV210_GPF0(0), 8);
  36        s5pv210_fb_cfg_gpios(S5PV210_GPF1(0), 8);
  37        s5pv210_fb_cfg_gpios(S5PV210_GPF2(0), 8);
  38        s5pv210_fb_cfg_gpios(S5PV210_GPF3(0), 4);
  39
  40        /* Set DISPLAY_CONTROL register for Display path selection.
  41         *
  42         * ouput   |   RGB   |   I80   |   ITU
  43         * -----------------------------------
  44         *  00     |   MIE   |  FIMD   |  FIMD
  45         *  01     | MDNIE   | MDNIE   |  FIMD
  46         *  10     |  FIMD   |  FIMD   |  FIMD
  47         *  11     |  FIMD   |  FIMD   |  FIMD
  48         */
  49        writel(0x2, S5P_MDNIE_SEL);
  50}
  51