linux/platform_data/omap-wd-timer.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * OMAP2+ WDTIMER-specific function prototypes
0004  *
0005  * Copyright (C) 2012 Texas Instruments, Inc.
0006  * Paul Walmsley
0007  */
0008
0009 #ifndef __LINUX_PLATFORM_DATA_OMAP_WD_TIMER_H
0010 #define __LINUX_PLATFORM_DATA_OMAP_WD_TIMER_H
0011
0012 #include <linux/types.h>
0013
0014 /*
0015  * Standardized OMAP reset source bits
0016  *
0017  * This is a subset of the ones listed in arch/arm/mach-omap2/prm.h
0018  * and are the only ones needed in the watchdog driver.
0019  */
0020 #define OMAP_MPU_WD_RST_SRC_ID_SHIFT                3
0021
0022 /**
0023  * struct omap_wd_timer_platform_data - WDTIMER integration to the host SoC
0024  * @read_reset_sources - fn ptr for the SoC to indicate the last reset cause
0025  *
0026  * The function pointed to by @read_reset_sources must return its data
0027  * in a standard format - search for RST_SRC_ID_SHIFT in
0028  * arch/arm/mach-omap2
0029  */
0030 struct omap_wd_timer_platform_data {
0031     u32 (*read_reset_sources)(void);
0032 };
0033
0034 #endif