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watchdog: octeon-wdt: File cleaning.

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* Update copyright and company name.
* Remove unused headers.
* Fix variable spelling and data type.
* Use octal values for module parameters.

Signed-off-by: Steven J. Hill <steven.hill@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Cc: linux-mips@linux-mips.org
Cc: linux-watchdog@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/17212/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Steven J. Hill 2017-08-29 10:40:36 -05:00 committed by Ralf Baechle
parent ba1fc93457
commit 381cec022e
1 changed files with 30 additions and 15 deletions
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45
drivers/watchdog/octeon-wdt-main.c
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@ -1,7 +1,7 @@
/*
* Octeon Watchdog driver
*
* Copyright (C) 2007, 2008, 2009, 2010 Cavium Networks
* Copyright (C) 2007-2017 Cavium, Inc.
*
* Converted to use WATCHDOG_CORE by Aaro Koskinen <aaro.koskinen@iki.fi>.
*
@ -59,14 +59,9 @@
#include <linux/interrupt.h>
#include <linux/watchdog.h>
#include <linux/cpumask.h>
#include <linux/bitops.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/delay.h>
#include <linux/cpu.h>
#include <linux/smp.h>
#include <linux/fs.h>
#include <linux/irq.h>
#include <asm/mipsregs.h>
@ -85,7 +80,7 @@ static unsigned int max_timeout_sec;
static unsigned int timeout_sec;
/* Set to non-zero when userspace countdown mode active */
static int do_coundown;
static bool do_countdown;
static unsigned int countdown_reset;
static unsigned int per_cpu_countdown[NR_CPUS];
@ -94,17 +89,22 @@ static cpumask_t irq_enabled_cpus;
#define WD_TIMO 60 /* Default heartbeat = 60 seconds */
static int heartbeat = WD_TIMO;
module_param(heartbeat, int, S_IRUGO);
module_param(heartbeat, int, 0444);
MODULE_PARM_DESC(heartbeat,
"Watchdog heartbeat in seconds. (0 < heartbeat, default="
__MODULE_STRING(WD_TIMO) ")");
static bool nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, bool, S_IRUGO);
module_param(nowayout, bool, 0444);
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
static int disable;
module_param(disable, int, 0444);
MODULE_PARM_DESC(disable,
"Disable the watchdog entirely (default=0)");
static struct cvmx_boot_vector_element *octeon_wdt_bootvector;
void octeon_wdt_nmi_stage2(void);
@ -140,7 +140,7 @@ static irqreturn_t octeon_wdt_poke_irq(int cpl, void *dev_id)
unsigned int core = cvmx_get_core_num();
int cpu = core2cpu(core);
if (do_coundown) {
if (do_countdown) {
if (per_cpu_countdown[cpu] > 0) {
/* We're alive, poke the watchdog */
cvmx_write_csr(CVMX_CIU_PP_POKEX(core), 1);
@ -324,11 +324,14 @@ static int octeon_wdt_ping(struct watchdog_device __always_unused *wdog)
int cpu;
int coreid;
if (disable)
return 0;
for_each_online_cpu(cpu) {
coreid = cpu2core(cpu);
cvmx_write_csr(CVMX_CIU_PP_POKEX(coreid), 1);
per_cpu_countdown[cpu] = countdown_reset;
if ((countdown_reset || !do_coundown) &&
if ((countdown_reset || !do_countdown) &&
!cpumask_test_cpu(cpu, &irq_enabled_cpus)) {
/* We have to enable the irq */
int irq = OCTEON_IRQ_WDOG0 + coreid;
@ -378,6 +381,9 @@ static int octeon_wdt_set_timeout(struct watchdog_device *wdog,
octeon_wdt_calc_parameters(t);
if (disable)
return 0;
for_each_online_cpu(cpu) {
coreid = cpu2core(cpu);
cvmx_write_csr(CVMX_CIU_PP_POKEX(coreid), 1);
@ -394,13 +400,13 @@ static int octeon_wdt_set_timeout(struct watchdog_device *wdog,
static int octeon_wdt_start(struct watchdog_device *wdog)
{
octeon_wdt_ping(wdog);
do_coundown = 1;
do_countdown = 1;
return 0;
}
static int octeon_wdt_stop(struct watchdog_device *wdog)
{
do_coundown = 0;
do_countdown = 0;
octeon_wdt_ping(wdog);
return 0;
}
@ -473,6 +479,11 @@ static int __init octeon_wdt_init(void)
return ret;
}
if (disable) {
pr_notice("disabled\n");
return 0;
}
cpumask_clear(&irq_enabled_cpus);
ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "watchdog/octeon:online",
@ -493,6 +504,10 @@ err:
static void __exit octeon_wdt_cleanup(void)
{
watchdog_unregister_device(&octeon_wdt);
if (disable)
return;
cpuhp_remove_state(octeon_wdt_online);
/*
@ -503,7 +518,7 @@ static void __exit octeon_wdt_cleanup(void)
}
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Cavium Networks <support@caviumnetworks.com>");
MODULE_DESCRIPTION("Cavium Networks Octeon Watchdog driver.");
MODULE_AUTHOR("Cavium Inc. <support@cavium.com>");
MODULE_DESCRIPTION("Cavium Inc. OCTEON Watchdog driver.");
module_init(octeon_wdt_init);
module_exit(octeon_wdt_cleanup);