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kernel/linux-imx6_3.14.28/arch/arm/mach-shmobile/sh-gpio.h 695 Bytes
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  /*
   * Generic GPIO API and pinmux table support
   *
   * Copyright (c) 2008  Magnus Damm
   *
   * This file is subject to the terms and conditions of the GNU General Public
   * License.  See the file "COPYING" in the main directory of this archive
   * for more details.
   */
  #ifndef __ASM_ARCH_GPIO_H
  #define __ASM_ARCH_GPIO_H
  
  #include <linux/kernel.h>
  #include <linux/errno.h>
  #include <linux/io.h>
  
  /*
   * FIXME !!
   *
   * current gpio frame work doesn't have
   * the method to control only pull up/down/free.
   * this function should be replaced by correct gpio function
   */
  static inline void __init gpio_direction_none(void __iomem * addr)
  {
  	__raw_writeb(0x00, addr);
  }
  
  #endif /* __ASM_ARCH_GPIO_H */