diff options
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/mpc8xxx_wdt.c | 104 |
1 files changed, 52 insertions, 52 deletions
diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c index fa82ec99ba81..8b82b91caee7 100644 --- a/drivers/watchdog/mpc8xxx_wdt.c +++ b/drivers/watchdog/mpc8xxx_wdt.c @@ -1,5 +1,5 @@ /* - * mpc83xx_wdt.c - MPC83xx/MPC86xx watchdog userspace interface + * mpc8xxx_wdt.c - MPC83xx/MPC86xx watchdog userspace interface * * Authors: Dave Updegraff <dave@cray.org> * Kumar Gala <galak@kernel.crashing.org> @@ -29,7 +29,7 @@ #include <linux/uaccess.h> #include <sysdev/fsl_soc.h> -struct mpc83xx_wdt { +struct mpc8xxx_wdt { __be32 res0; __be32 swcrr; /* System watchdog control register */ #define SWCRR_SWTC 0xFFFF0000 /* Software Watchdog Time Count. */ @@ -42,12 +42,12 @@ struct mpc83xx_wdt { u8 res2[0xF0]; }; -struct mpc83xx_wdt_type { +struct mpc8xxx_wdt_type { int prescaler; bool hw_enabled; }; -static struct mpc83xx_wdt __iomem *wd_base; +static struct mpc8xxx_wdt __iomem *wd_base; static u16 timeout = 0xffff; module_param(timeout, ushort, 0); @@ -74,7 +74,7 @@ static unsigned int timeout_sec; static unsigned long wdt_is_open; static DEFINE_SPINLOCK(wdt_spinlock); -static void mpc83xx_wdt_keepalive(void) +static void mpc8xxx_wdt_keepalive(void) { /* Ping the WDT */ spin_lock(&wdt_spinlock); @@ -83,31 +83,31 @@ static void mpc83xx_wdt_keepalive(void) spin_unlock(&wdt_spinlock); } -static void mpc83xx_wdt_timer_ping(unsigned long arg); -static DEFINE_TIMER(wdt_timer, mpc83xx_wdt_timer_ping, 0, 0); +static void mpc8xxx_wdt_timer_ping(unsigned long arg); +static DEFINE_TIMER(wdt_timer, mpc8xxx_wdt_timer_ping, 0, 0); -static void mpc83xx_wdt_timer_ping(unsigned long arg) +static void mpc8xxx_wdt_timer_ping(unsigned long arg) { - mpc83xx_wdt_keepalive(); + mpc8xxx_wdt_keepalive(); /* We're pinging it twice faster than needed, just to be sure. */ mod_timer(&wdt_timer, jiffies + HZ * timeout_sec / 2); } -static void mpc83xx_wdt_pr_warn(const char *msg) +static void mpc8xxx_wdt_pr_warn(const char *msg) { - pr_crit("mpc83xx_wdt: %s, expect the %s soon!\n", msg, + pr_crit("mpc8xxx_wdt: %s, expect the %s soon!\n", msg, reset ? "reset" : "machine check exception"); } -static ssize_t mpc83xx_wdt_write(struct file *file, const char __user *buf, +static ssize_t mpc8xxx_wdt_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { if (count) - mpc83xx_wdt_keepalive(); + mpc8xxx_wdt_keepalive(); return count; } -static int mpc83xx_wdt_open(struct inode *inode, struct file *file) +static int mpc8xxx_wdt_open(struct inode *inode, struct file *file) { u32 tmp = SWCRR_SWEN; if (test_and_set_bit(0, &wdt_is_open)) @@ -132,17 +132,17 @@ static int mpc83xx_wdt_open(struct inode *inode, struct file *file) return nonseekable_open(inode, file); } -static int mpc83xx_wdt_release(struct inode *inode, struct file *file) +static int mpc8xxx_wdt_release(struct inode *inode, struct file *file) { if (!nowayout) - mpc83xx_wdt_timer_ping(0); + mpc8xxx_wdt_timer_ping(0); else - mpc83xx_wdt_pr_warn("watchdog closed"); + mpc8xxx_wdt_pr_warn("watchdog closed"); clear_bit(0, &wdt_is_open); return 0; } -static long mpc83xx_wdt_ioctl(struct file *file, unsigned int cmd, +static long mpc8xxx_wdt_ioctl(struct inode *inode, struct file *file, unsigned long arg) { void __user *argp = (void __user *)arg; @@ -150,7 +150,7 @@ static long mpc83xx_wdt_ioctl(struct file *file, unsigned int cmd, static struct watchdog_info ident = { .options = WDIOF_KEEPALIVEPING, .firmware_version = 1, - .identity = "MPC83xx", + .identity = "MPC8xxx", }; switch (cmd) { @@ -160,7 +160,7 @@ static long mpc83xx_wdt_ioctl(struct file *file, unsigned int cmd, case WDIOC_GETBOOTSTATUS: return put_user(0, p); case WDIOC_KEEPALIVE: - mpc83xx_wdt_keepalive(); + mpc8xxx_wdt_keepalive(); return 0; case WDIOC_GETTIMEOUT: return put_user(timeout_sec, p); @@ -169,27 +169,27 @@ static long mpc83xx_wdt_ioctl(struct file *file, unsigned int cmd, } } -static const struct file_operations mpc83xx_wdt_fops = { +static const struct file_operations mpc8xxx_wdt_fops = { .owner = THIS_MODULE, .llseek = no_llseek, - .write = mpc83xx_wdt_write, - .unlocked_ioctl = mpc83xx_wdt_ioctl, - .open = mpc83xx_wdt_open, - .release = mpc83xx_wdt_release, + .write = mpc8xxx_wdt_write, + .unlocked_ioctl = mpc8xxx_wdt_ioctl, + .open = mpc8xxx_wdt_open, + .release = mpc8xxx_wdt_release, }; -static struct miscdevice mpc83xx_wdt_miscdev = { +static struct miscdevice mpc8xxx_wdt_miscdev = { .minor = WATCHDOG_MINOR, .name = "watchdog", - .fops = &mpc83xx_wdt_fops, + .fops = &mpc8xxx_wdt_fops, }; -static int __devinit mpc83xx_wdt_probe(struct of_device *ofdev, +static int __devinit mpc8xxx_wdt_probe(struct of_device *ofdev, const struct of_device_id *match) { int ret; struct device_node *np = ofdev->node; - struct mpc83xx_wdt_type *wdt_type = match->data; + struct mpc8xxx_wdt_type *wdt_type = match->data; u32 freq = fsl_get_sys_freq(); bool enabled; @@ -202,12 +202,12 @@ static int __devinit mpc83xx_wdt_probe(struct of_device *ofdev, enabled = in_be32(&wd_base->swcrr) & SWCRR_SWEN; if (!enabled && wdt_type->hw_enabled) { - pr_info("mpc83xx_wdt: could not be enabled in software\n"); + pr_info("mpc8xxx_wdt: could not be enabled in software\n"); ret = -ENOSYS; goto err_unmap; } - ret = misc_register(&mpc83xx_wdt_miscdev); + ret = misc_register(&mpc8xxx_wdt_miscdev); if (ret) { pr_err("cannot register miscdev on minor=%d (err=%d)\n", WATCHDOG_MINOR, ret); @@ -220,73 +220,73 @@ static int __devinit mpc83xx_wdt_probe(struct of_device *ofdev, else timeout_sec = timeout / freq; - pr_info("WDT driver for MPC83xx initialized. mode:%s timeout=%d " + pr_info("WDT driver for MPC8xxx initialized. mode:%s timeout=%d " "(%d seconds)\n", reset ? "reset" : "interrupt", timeout, timeout_sec); /* * If the watchdog was previously enabled or we're running on - * MPC86xx, we should ping the wdt from the kernel until the + * MPC8xxx, we should ping the wdt from the kernel until the * userspace handles it. */ if (enabled) - mpc83xx_wdt_timer_ping(0); + mpc8xxx_wdt_timer_ping(0); return 0; err_unmap: iounmap(wd_base); return ret; } -static int __devexit mpc83xx_wdt_remove(struct of_device *ofdev) +static int __devexit mpc8xxx_wdt_remove(struct of_device *ofdev) { - mpc83xx_wdt_pr_warn("watchdog removed"); + mpc8xxx_wdt_pr_warn("watchdog removed"); del_timer_sync(&wdt_timer); - misc_deregister(&mpc83xx_wdt_miscdev); + misc_deregister(&mpc8xxx_wdt_miscdev); iounmap(wd_base); return 0; } -static const struct of_device_id mpc83xx_wdt_match[] = { +static const struct of_device_id mpc8xxx_wdt_match[] = { { .compatible = "mpc83xx_wdt", - .data = &(struct mpc83xx_wdt_type) { + .data = &(struct mpc8xxx_wdt_type) { .prescaler = 0x10000, }, }, { .compatible = "fsl,mpc8610-wdt", - .data = &(struct mpc83xx_wdt_type) { + .data = &(struct mpc8xxx_wdt_type) { .prescaler = 0x10000, .hw_enabled = true, }, }, {}, }; -MODULE_DEVICE_TABLE(of, mpc83xx_wdt_match); +MODULE_DEVICE_TABLE(of, mpc8xxx_wdt_match); -static struct of_platform_driver mpc83xx_wdt_driver = { - .match_table = mpc83xx_wdt_match, - .probe = mpc83xx_wdt_probe, - .remove = __devexit_p(mpc83xx_wdt_remove), +static struct of_platform_driver mpc8xxx_wdt_driver = { + .match_table = mpc8xxx_wdt_match, + .probe = mpc8xxx_wdt_probe, + .remove = __devexit_p(mpc8xxx_wdt_remove), .driver = { - .name = "mpc83xx_wdt", + .name = "mpc8xxx_wdt", .owner = THIS_MODULE, }, }; -static int __init mpc83xx_wdt_init(void) +static int __init mpc8xxx_wdt_init(void) { - return of_register_platform_driver(&mpc83xx_wdt_driver); + return of_register_platform_driver(&mpc8xxx_wdt_driver); } -static void __exit mpc83xx_wdt_exit(void) +static void __exit mpc8xxx_wdt_exit(void) { - of_unregister_platform_driver(&mpc83xx_wdt_driver); + of_unregister_platform_driver(&mpc8xxx_wdt_driver); } -subsys_initcall(mpc83xx_wdt_init); -module_exit(mpc83xx_wdt_exit); +subsys_initcall(mpc8xxx_wdt_init); +module_exit(mpc8xxx_wdt_exit); MODULE_AUTHOR("Dave Updegraff, Kumar Gala"); MODULE_DESCRIPTION("Driver for watchdog timer in MPC83xx/MPC86xx uProcessors"); |