path: root/include/linux/platform_data/omap-wd-timer.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * OMAP2+ WDTIMER-specific function prototypes
 *
 * Copyright (C) 2012 Texas Instruments, Inc.
 * Paul Walmsley
 */

#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