arch/arm/mach-exynos/setup-fimc.c

   1 /*
   2  * Copyright (C) 2011 Samsung Electronics Co., Ltd.
   3  *
   4  * Exynos4 camera interface GPIO configuration.
   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/gpio.h>
  12 #include <plat/gpio-cfg.h>
  13 #include <plat/camport.h>
  14
  15 int exynos4_fimc_setup_gpio(enum s5p_camport_id id)
  16 {
  17         u32 gpio8, gpio5;
  18         u32 sfn;
  19         int ret;
  20
  21         switch (id) {
  22         case S5P_CAMPORT_A:
  23                 gpio8 = EXYNOS4_GPJ0(0); /* PCLK, VSYNC, HREF, DATA[0:4] */
  24                 gpio5 = EXYNOS4_GPJ1(0); /* DATA[5:7], CLKOUT, FIELD */
  25                 sfn = S3C_GPIO_SFN(2);
  26                 break;
  27
  28         case S5P_CAMPORT_B:
  29                 gpio8 = EXYNOS4_GPE0(0); /* DATA[0:7] */
  30                 gpio5 = EXYNOS4_GPE1(0); /* PCLK, VSYNC, HREF, CLKOUT, FIELD */
  31                 sfn = S3C_GPIO_SFN(3);
  32                 break;
  33
  34         default:
  35                 WARN(1, "Wrong camport id: %d\n", id);
  36                 return -EINVAL;
  37         }
  38
  39         ret = s3c_gpio_cfgall_range(gpio8, 8, sfn, S3C_GPIO_PULL_UP);
  40         if (ret)
  41                 return ret;
  42
  43         return s3c_gpio_cfgall_range(gpio5, 5, sfn, S3C_GPIO_PULL_UP);
  44 }