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kernel/linux-rt-4.4.41/include/linux/platform_data/omap-wd-timer.h 1.08 KB
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  /*
   * OMAP2+ WDTIMER-specific function prototypes
   *
   * Copyright (C) 2012 Texas Instruments, Inc.
   * Paul Walmsley
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   */
  
  #ifndef __LINUX_PLATFORM_DATA_OMAP_WD_TIMER_H
  #define __LINUX_PLATFORM_DATA_OMAP_WD_TIMER_H
  
  #include <linux/types.h>
  
  /*
   * Standardized OMAP reset source bits
   *
   * This is a subset of the ones listed in arch/arm/mach-omap2/prm.h
   * and are the only ones needed in the watchdog driver.
   */
  #define OMAP_MPU_WD_RST_SRC_ID_SHIFT				3
  
  /**
   * struct omap_wd_timer_platform_data - WDTIMER integration to the host SoC
   * @read_reset_sources - fn ptr for the SoC to indicate the last reset cause
   *
   * The function pointed to by @read_reset_sources must return its data
   * in a standard format - search for RST_SRC_ID_SHIFT in
   * arch/arm/mach-omap2
   */
  struct omap_wd_timer_platform_data {
  	u32 (*read_reset_sources)(void);
  };
  
  #endif