diff options
Diffstat (limited to 'drivers/watchdog/smsc37b787_wdt.c')
| -rw-r--r-- | drivers/watchdog/smsc37b787_wdt.c | 442 |
1 files changed, 222 insertions, 220 deletions
diff --git a/drivers/watchdog/smsc37b787_wdt.c b/drivers/watchdog/smsc37b787_wdt.c index 5d2b5ba61414..b7c6394b7d70 100644 --- a/drivers/watchdog/smsc37b787_wdt.c +++ b/drivers/watchdog/smsc37b787_wdt.c @@ -18,7 +18,7 @@ * History: * 2003 - Created version 1.0 for Linux 2.4.x. * 2006 - Ported to Linux 2.6, added nowayout and MAGICCLOSE - * features. Released version 1.1 + * features. Released version 1.1 * * Theory of operation: * @@ -55,9 +55,9 @@ #include <linux/reboot.h> #include <linux/init.h> #include <linux/spinlock.h> +#include <linux/io.h> +#include <linux/uaccess.h> -#include <asm/io.h> -#include <asm/uaccess.h> #include <asm/system.h> /* enable support for minutes as units? */ @@ -71,15 +71,15 @@ #define UNIT_MINUTE 1 #define MODNAME "smsc37b787_wdt: " -#define VERSION "1.1" +#define VERSION "1.1" -#define IOPORT 0x3F0 +#define IOPORT 0x3F0 #define IOPORT_SIZE 2 -#define IODEV_NO 8 +#define IODEV_NO 8 -static int unit = UNIT_SECOND; /* timer's unit */ -static int timeout = 60; /* timeout value: default is 60 "units" */ -static unsigned long timer_enabled = 0; /* is the timer enabled? */ +static int unit = UNIT_SECOND; /* timer's unit */ +static int timeout = 60; /* timeout value: default is 60 "units" */ +static unsigned long timer_enabled; /* is the timer enabled? */ static char expect_close; /* is the close expected? */ @@ -93,114 +93,121 @@ static int nowayout = WATCHDOG_NOWAYOUT; static inline void open_io_config(void) { - outb(0x55, IOPORT); + outb(0x55, IOPORT); mdelay(1); - outb(0x55, IOPORT); + outb(0x55, IOPORT); } /* lock the IO chip */ static inline void close_io_config(void) { - outb(0xAA, IOPORT); + outb(0xAA, IOPORT); } /* select the IO device */ static inline void select_io_device(unsigned char devno) { - outb(0x07, IOPORT); - outb(devno, IOPORT+1); + outb(0x07, IOPORT); + outb(devno, IOPORT+1); } /* write to the control register */ static inline void write_io_cr(unsigned char reg, unsigned char data) { - outb(reg, IOPORT); - outb(data, IOPORT+1); + outb(reg, IOPORT); + outb(data, IOPORT+1); } /* read from the control register */ static inline char read_io_cr(unsigned char reg) { - outb(reg, IOPORT); - return inb(IOPORT+1); + outb(reg, IOPORT); + return inb(IOPORT+1); } /* -- Medium level functions ------------------------------------*/ static inline void gpio_bit12(unsigned char reg) { - // -- General Purpose I/O Bit 1.2 -- - // Bit 0, In/Out: 0 = Output, 1 = Input - // Bit 1, Polarity: 0 = No Invert, 1 = Invert - // Bit 2, Group Enable Intr.: 0 = Disable, 1 = Enable - // Bit 3/4, Function select: 00 = GPI/O, 01 = WDT, 10 = P17, - // 11 = Either Edge Triggered Intr. 2 - // Bit 5/6 (Reserved) - // Bit 7, Output Type: 0 = Push Pull Bit, 1 = Open Drain - write_io_cr(0xE2, reg); + /* -- General Purpose I/O Bit 1.2 -- + * Bit 0, In/Out: 0 = Output, 1 = Input + * Bit 1, Polarity: 0 = No Invert, 1 = Invert + * Bit 2, Group Enable Intr.: 0 = Disable, 1 = Enable + * Bit 3/4, Function select: 00 = GPI/O, 01 = WDT, 10 = P17, + * 11 = Either Edge Triggered Intr. 2 + * Bit 5/6 (Reserved) + * Bit 7, Output Type: 0 = Push Pull Bit, 1 = Open Drain + */ + write_io_cr(0xE2, reg); } static inline void gpio_bit13(unsigned char reg) { - // -- General Purpose I/O Bit 1.3 -- - // Bit 0, In/Out: 0 = Output, 1 = Input - // Bit 1, Polarity: 0 = No Invert, 1 = Invert - // Bit 2, Group Enable Intr.: 0 = Disable, 1 = Enable - // Bit 3, Function select: 0 = GPI/O, 1 = LED - // Bit 4-6 (Reserved) - // Bit 7, Output Type: 0 = Push Pull Bit, 1 = Open Drain - write_io_cr(0xE3, reg); + /* -- General Purpose I/O Bit 1.3 -- + * Bit 0, In/Out: 0 = Output, 1 = Input + * Bit 1, Polarity: 0 = No Invert, 1 = Invert + * Bit 2, Group Enable Intr.: 0 = Disable, 1 = Enable + * Bit 3, Function select: 0 = GPI/O, 1 = LED + * Bit 4-6 (Reserved) + * Bit 7, Output Type: 0 = Push Pull Bit, 1 = Open Drain + */ + write_io_cr(0xE3, reg); } static inline void wdt_timer_units(unsigned char new_units) { - // -- Watchdog timer units -- - // Bit 0-6 (Reserved) - // Bit 7, WDT Time-out Value Units Select - // (0 = Minutes, 1 = Seconds) - write_io_cr(0xF1, new_units); + /* -- Watchdog timer units -- + * Bit 0-6 (Reserved) + * Bit 7, WDT Time-out Value Units Select + * (0 = Minutes, 1 = Seconds) + */ + write_io_cr(0xF1, new_units); } static inline void wdt_timeout_value(unsigned char new_timeout) { - // -- Watchdog Timer Time-out Value -- - // Bit 0-7 Binary coded units (0=Disabled, 1..255) - write_io_cr(0xF2, new_timeout); + /* -- Watchdog Timer Time-out Value -- + * Bit 0-7 Binary coded units (0=Disabled, 1..255) + */ + write_io_cr(0xF2, new_timeout); } static inline void wdt_timer_conf(unsigned char conf) { - // -- Watchdog timer configuration -- - // Bit 0 Joystick enable: 0* = No Reset, 1 = Reset WDT upon Gameport I/O - // Bit 1 Keyboard enable: 0* = No Reset, 1 = Reset WDT upon KBD Intr. - // Bit 2 Mouse enable: 0* = No Reset, 1 = Reset WDT upon Mouse Intr. - // Bit 3 Reset the timer - // (Wrong in SMsC documentation? Given as: PowerLED Timout Enabled) - // Bit 4-7 WDT Interrupt Mapping: (0000* = Disabled, - // 0001=IRQ1, 0010=(Invalid), 0011=IRQ3 to 1111=IRQ15) - write_io_cr(0xF3, conf); + /* -- Watchdog timer configuration -- + * Bit 0 Joystick enable: 0* = No Reset, 1 = Reset WDT upon + * Gameport I/O + * Bit 1 Keyboard enable: 0* = No Reset, 1 = Reset WDT upon KBD Intr. + * Bit 2 Mouse enable: 0* = No Reset, 1 = Reset WDT upon Mouse Intr + * Bit 3 Reset the timer + * (Wrong in SMsC documentation? Given as: PowerLED Timout + * Enabled) + * Bit 4-7 WDT Interrupt Mapping: (0000* = Disabled, + * 0001=IRQ1, 0010=(Invalid), 0011=IRQ3 to 1111=IRQ15) + */ + write_io_cr(0xF3, conf); } static inline void wdt_timer_ctrl(unsigned char reg) { - // -- Watchdog timer control -- - // Bit 0 Status Bit: 0 = Timer counting, 1 = Timeout occured - // Bit 1 Power LED Toggle: 0 = Disable Toggle, 1 = Toggle at 1 Hz - // Bit 2 Force Timeout: 1 = Forces WD timeout event (self-cleaning) - // Bit 3 P20 Force Timeout enabled: - // 0 = P20 activity does not generate the WD timeout event - // 1 = P20 Allows rising edge of P20, from the keyboard - // controller, to force the WD timeout event. - // Bit 4 (Reserved) - // -- Soft power management -- - // Bit 5 Stop Counter: 1 = Stop software power down counter - // set via register 0xB8, (self-cleaning) - // (Upon read: 0 = Counter running, 1 = Counter stopped) - // Bit 6 Restart Counter: 1 = Restart software power down counter - // set via register 0xB8, (self-cleaning) - // Bit 7 SPOFF: 1 = Force software power down (self-cleaning) - - write_io_cr(0xF4, reg); + /* -- Watchdog timer control -- + * Bit 0 Status Bit: 0 = Timer counting, 1 = Timeout occured + * Bit 1 Power LED Toggle: 0 = Disable Toggle, 1 = Toggle at 1 Hz + * Bit 2 Force Timeout: 1 = Forces WD timeout event (self-cleaning) + * Bit 3 P20 Force Timeout enabled: + * 0 = P20 activity does not generate the WD timeout event + * 1 = P20 Allows rising edge of P20, from the keyboard + * controller, to force the WD timeout event. + * Bit 4 (Reserved) + * -- Soft power management -- + * Bit 5 Stop Counter: 1 = Stop software power down counter + * set via register 0xB8, (self-cleaning) + * (Upon read: 0 = Counter running, 1 = Counter stopped) + * Bit 6 Restart Counter: 1 = Restart software power down counter + * set via register 0xB8, (self-cleaning) + * Bit 7 SPOFF: 1 = Force software power down (self-cleaning) + */ + write_io_cr(0xF4, reg); } /* -- Higher level functions ------------------------------------*/ @@ -209,33 +216,34 @@ static inline void wdt_timer_ctrl(unsigned char reg) static void wb_smsc_wdt_initialize(void) { - unsigned char old; + unsigned char old; spin_lock(&io_lock); - open_io_config(); - select_io_device(IODEV_NO); + open_io_config(); + select_io_device(IODEV_NO); - // enable the watchdog - gpio_bit13(0x08); // Select pin 80 = LED not GPIO - gpio_bit12(0x0A); // Set pin 79 = WDT not GPIO/Output/Polarity=Invert + /* enable the watchdog */ + gpio_bit13(0x08); /* Select pin 80 = LED not GPIO */ + gpio_bit12(0x0A); /* Set pin 79 = WDT not + GPIO/Output/Polarity=Invert */ + /* disable the timeout */ + wdt_timeout_value(0); - // disable the timeout - wdt_timeout_value(0); + /* reset control register */ + wdt_timer_ctrl(0x00); - // reset control register - wdt_timer_ctrl(0x00); - - // reset configuration register + /* reset configuration register */ wdt_timer_conf(0x00); - // read old (timer units) register - old = read_io_cr(0xF1) & 0x7F; - if (unit == UNIT_SECOND) old |= 0x80; // set to seconds + /* read old (timer units) register */ + old = read_io_cr(0xF1) & 0x7F; + if (unit == UNIT_SECOND) + old |= 0x80; /* set to seconds */ - // set the watchdog timer units - wdt_timer_units(old); + /* set the watchdog timer units */ + wdt_timer_units(old); - close_io_config(); + close_io_config(); spin_unlock(&io_lock); } @@ -244,23 +252,23 @@ static void wb_smsc_wdt_initialize(void) static void wb_smsc_wdt_shutdown(void) { spin_lock(&io_lock); - open_io_config(); - select_io_device(IODEV_NO); + open_io_config(); + select_io_device(IODEV_NO); - // disable the watchdog - gpio_bit13(0x09); - gpio_bit12(0x09); + /* disable the watchdog */ + gpio_bit13(0x09); + gpio_bit12(0x09); - // reset watchdog config register + /* reset watchdog config register */ wdt_timer_conf(0x00); - // reset watchdog control register - wdt_timer_ctrl(0x00); + /* reset watchdog control register */ + wdt_timer_ctrl(0x00); - // disable timeout - wdt_timeout_value(0x00); + /* disable timeout */ + wdt_timeout_value(0x00); - close_io_config(); + close_io_config(); spin_unlock(&io_lock); } @@ -269,16 +277,16 @@ static void wb_smsc_wdt_shutdown(void) static void wb_smsc_wdt_set_timeout(unsigned char new_timeout) { spin_lock(&io_lock); - open_io_config(); - select_io_device(IODEV_NO); + open_io_config(); + select_io_device(IODEV_NO); - // set Power LED to blink, if we enable the timeout - wdt_timer_ctrl((new_timeout == 0) ? 0x00 : 0x02); + /* set Power LED to blink, if we enable the timeout */ + wdt_timer_ctrl((new_timeout == 0) ? 0x00 : 0x02); - // set timeout value - wdt_timeout_value(new_timeout); + /* set timeout value */ + wdt_timeout_value(new_timeout); - close_io_config(); + close_io_config(); spin_unlock(&io_lock); } @@ -286,32 +294,32 @@ static void wb_smsc_wdt_set_timeout(unsigned char new_timeout) static unsigned char wb_smsc_wdt_get_timeout(void) { - unsigned char set_timeout; + unsigned char set_timeout; spin_lock(&io_lock); - open_io_config(); - select_io_device(IODEV_NO); - set_timeout = read_io_cr(0xF2); - close_io_config(); + open_io_config(); + select_io_device(IODEV_NO); + set_timeout = read_io_cr(0xF2); + close_io_config(); spin_unlock(&io_lock); - return set_timeout; + return set_timeout; } /* disable watchdog */ static void wb_smsc_wdt_disable(void) { - // set the timeout to 0 to disable the watchdog - wb_smsc_wdt_set_timeout(0); + /* set the timeout to 0 to disable the watchdog */ + wb_smsc_wdt_set_timeout(0); } /* enable watchdog by setting the current timeout */ static void wb_smsc_wdt_enable(void) { - // set the current timeout... - wb_smsc_wdt_set_timeout(timeout); + /* set the current timeout... */ + wb_smsc_wdt_set_timeout(timeout); } /* reset the timer */ @@ -319,14 +327,14 @@ static void wb_smsc_wdt_enable(void) static void wb_smsc_wdt_reset_timer(void) { spin_lock(&io_lock); - open_io_config(); - select_io_device(IODEV_NO); + open_io_config(); + select_io_device(IODEV_NO); - // reset the timer + /* reset the timer */ wdt_timeout_value(timeout); wdt_timer_conf(0x08); - close_io_config(); + close_io_config(); spin_unlock(&io_lock); } @@ -355,7 +363,9 @@ static int wb_smsc_wdt_open(struct inode *inode, struct file *file) /* Reload and activate timer */ wb_smsc_wdt_enable(); - printk(KERN_INFO MODNAME "Watchdog enabled. Timeout set to %d %s.\n", timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)"); + printk(KERN_INFO MODNAME + "Watchdog enabled. Timeout set to %d %s.\n", + timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)"); return nonseekable_open(inode, file); } @@ -367,10 +377,12 @@ static int wb_smsc_wdt_release(struct inode *inode, struct file *file) /* Shut off the timer. */ if (expect_close == 42) { - wb_smsc_wdt_disable(); - printk(KERN_INFO MODNAME "Watchdog disabled, sleeping again...\n"); + wb_smsc_wdt_disable(); + printk(KERN_INFO MODNAME + "Watchdog disabled, sleeping again...\n"); } else { - printk(KERN_CRIT MODNAME "Unexpected close, not stopping watchdog!\n"); + printk(KERN_CRIT MODNAME + "Unexpected close, not stopping watchdog!\n"); wb_smsc_wdt_reset_timer(); } @@ -392,7 +404,8 @@ static ssize_t wb_smsc_wdt_write(struct file *file, const char __user *data, /* reset expect flag */ expect_close = 0; - /* scan to see whether or not we got the magic character */ + /* scan to see whether or not we got the + magic character */ for (i = 0; i != len; i++) { char c; if (get_user(c, data+i)) @@ -410,8 +423,8 @@ static ssize_t wb_smsc_wdt_write(struct file *file, const char __user *data, /* ioctl => control interface */ -static int wb_smsc_wdt_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long wb_smsc_wdt_ioctl(struct file *file, + unsigned int cmd, unsigned long arg) { int new_timeout; @@ -420,9 +433,9 @@ static int wb_smsc_wdt_ioctl(struct inode *inode, struct file *file, int __user *i; } uarg; - static struct watchdog_info ident = { + static const struct watchdog_info ident = { .options = WDIOF_KEEPALIVEPING | - WDIOF_SETTIMEOUT | + WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE, .firmware_version = 0, .identity = "SMsC 37B787 Watchdog" @@ -431,78 +444,62 @@ static int wb_smsc_wdt_ioctl(struct inode *inode, struct file *file, uarg.i = (int __user *)arg; switch (cmd) { - default: - return -ENOTTY; - - case WDIOC_GETSUPPORT: - return copy_to_user(uarg.ident, &ident, - sizeof(ident)) ? -EFAULT : 0; - - case WDIOC_GETSTATUS: - return put_user(wb_smsc_wdt_status(), uarg.i); - - case WDIOC_GETBOOTSTATUS: - return put_user(0, uarg.i); - - case WDIOC_KEEPALIVE: - wb_smsc_wdt_reset_timer(); - return 0; - - case WDIOC_SETTIMEOUT: - if (get_user(new_timeout, uarg.i)) - return -EFAULT; - - // the API states this is given in secs - if (unit == UNIT_MINUTE) - new_timeout /= 60; - - if (new_timeout < 0 || new_timeout > MAX_TIMEOUT) - return -EINVAL; - - timeout = new_timeout; - wb_smsc_wdt_set_timeout(timeout); - - // fall through and return the new timeout... - - case WDIOC_GETTIMEOUT: - - new_timeout = timeout; - - if (unit == UNIT_MINUTE) + case WDIOC_GETSUPPORT: + return copy_to_user(uarg.ident, &ident, sizeof(ident)) + ? -EFAULT : 0; + case WDIOC_GETSTATUS: + return put_user(wb_smsc_wdt_status(), uarg.i); + case WDIOC_GETBOOTSTATUS: + return put_user(0, uarg.i); + case WDIOC_KEEPALIVE: + wb_smsc_wdt_reset_timer(); + return 0; + case WDIOC_SETTIMEOUT: + if (get_user(new_timeout, uarg.i)) + return -EFAULT; + /* the API states this is given in secs */ + if (unit == UNIT_MINUTE) + new_timeout /= 60; + if (new_timeout < 0 || new_timeout > MAX_TIMEOUT) + return -EINVAL; + timeout = new_timeout; + wb_smsc_wdt_set_timeout(timeout); + /* fall through and return the new timeout... */ + case WDIOC_GETTIMEOUT: + new_timeout = timeout; + if (unit == UNIT_MINUTE) new_timeout *= 60; + return put_user(new_timeout, uarg.i); + case WDIOC_SETOPTIONS: + { + int options, retval = -EINVAL; - return put_user(new_timeout, uarg.i); - - case WDIOC_SETOPTIONS: - { - int options, retval = -EINVAL; - - if (get_user(options, uarg.i)) - return -EFAULT; - - if (options & WDIOS_DISABLECARD) { - wb_smsc_wdt_disable(); - retval = 0; - } - - if (options & WDIOS_ENABLECARD) { - wb_smsc_wdt_enable(); - retval = 0; - } + if (get_user(options, uarg.i)) + return -EFAULT; - return retval; + if (options & WDIOS_DISABLECARD) { + wb_smsc_wdt_disable(); + retval = 0; } + if (options & WDIOS_ENABLECARD) { + wb_smsc_wdt_enable(); + retval = 0; + } + return retval; + } + default: + return -ENOTTY; } } /* -- Notifier funtions -----------------------------------------*/ -static int wb_smsc_wdt_notify_sys(struct notifier_block *this, unsigned long code, void *unused) +static int wb_smsc_wdt_notify_sys(struct notifier_block *this, + unsigned long code, void *unused) { - if (code == SYS_DOWN || code == SYS_HALT) - { - // set timeout to 0, to avoid possible race-condition - timeout = 0; + if (code == SYS_DOWN || code == SYS_HALT) { + /* set timeout to 0, to avoid possible race-condition */ + timeout = 0; wb_smsc_wdt_disable(); } return NOTIFY_DONE; @@ -510,23 +507,20 @@ static int wb_smsc_wdt_notify_sys(struct notifier_block *this, unsigned long cod /* -- Module's structures ---------------------------------------*/ -static const struct file_operations wb_smsc_wdt_fops = -{ - .owner = THIS_MODULE, +static const struct file_operations wb_smsc_wdt_fops = { + .owner = THIS_MODULE, .llseek = no_llseek, .write = wb_smsc_wdt_write, - .ioctl = wb_smsc_wdt_ioctl, + .unlocked_ioctl = wb_smsc_wdt_ioctl, .open = wb_smsc_wdt_open, .release = wb_smsc_wdt_release, }; -static struct notifier_block wb_smsc_wdt_notifier = -{ +static struct notifier_block wb_smsc_wdt_notifier = { .notifier_call = wb_smsc_wdt_notify_sys, }; -static struct miscdevice wb_smsc_wdt_miscdev = -{ +static struct miscdevice wb_smsc_wdt_miscdev = { .minor = WATCHDOG_MINOR, .name = "watchdog", .fops = &wb_smsc_wdt_fops, @@ -540,39 +534,44 @@ static int __init wb_smsc_wdt_init(void) { int ret; - printk("SMsC 37B787 watchdog component driver " VERSION " initialising...\n"); + printk(KERN_INFO "SMsC 37B787 watchdog component driver " + VERSION " initialising...\n"); if (!request_region(IOPORT, IOPORT_SIZE, "SMsC 37B787 watchdog")) { - printk(KERN_ERR MODNAME "Unable to register IO port %#x\n", IOPORT); + printk(KERN_ERR MODNAME "Unable to register IO port %#x\n", + IOPORT); ret = -EBUSY; goto out_pnp; } - // set new maximum, if it's too big - if (timeout > MAX_TIMEOUT) - timeout = MAX_TIMEOUT; + /* set new maximum, if it's too big */ + if (timeout > MAX_TIMEOUT) + timeout = MAX_TIMEOUT; - // init the watchdog timer - wb_smsc_wdt_initialize(); + /* init the watchdog timer */ + wb_smsc_wdt_initialize(); ret = register_reboot_notifier(&wb_smsc_wdt_notifier); if (ret) { - printk(KERN_ERR MODNAME "Unable to register reboot notifier err = %d\n", ret); + printk(KERN_ERR MODNAME + "Unable to register reboot notifier err = %d\n", ret); goto out_io; } ret = misc_register(&wb_smsc_wdt_miscdev); if (ret) { - printk(KERN_ERR MODNAME "Unable to register miscdev on minor %d\n", WATCHDOG_MINOR); + printk(KERN_ERR MODNAME + "Unable to register miscdev on minor %d\n", + WATCHDOG_MINOR); goto out_rbt; } - // output info - printk(KERN_INFO MODNAME "Timeout set to %d %s.\n", timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)"); - printk(KERN_INFO MODNAME "Watchdog initialized and sleeping (nowayout=%d)...\n", nowayout); - - // ret = 0 - + /* output info */ + printk(KERN_INFO MODNAME "Timeout set to %d %s.\n", + timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)"); + printk(KERN_INFO MODNAME + "Watchdog initialized and sleeping (nowayout=%d)...\n", + nowayout); out_clean: return ret; @@ -591,8 +590,7 @@ out_pnp: static void __exit wb_smsc_wdt_exit(void) { /* Stop the timer before we leave */ - if (!nowayout) - { + if (!nowayout) { wb_smsc_wdt_shutdown(); printk(KERN_INFO MODNAME "Watchdog disabled.\n"); } @@ -601,25 +599,29 @@ static void __exit wb_smsc_wdt_exit(void) unregister_reboot_notifier(&wb_smsc_wdt_notifier); release_region(IOPORT, IOPORT_SIZE); - printk("SMsC 37B787 watchdog component driver removed.\n"); + printk(KERN_INFO "SMsC 37B787 watchdog component driver removed.\n"); } module_init(wb_smsc_wdt_init); module_exit(wb_smsc_wdt_exit); MODULE_AUTHOR("Sven Anders <anders@anduras.de>"); -MODULE_DESCRIPTION("Driver for SMsC 37B787 watchdog component (Version " VERSION ")"); +MODULE_DESCRIPTION("Driver for SMsC 37B787 watchdog component (Version " + VERSION ")"); MODULE_LICENSE("GPL"); MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); #ifdef SMSC_SUPPORT_MINUTES module_param(unit, int, 0); -MODULE_PARM_DESC(unit, "set unit to use, 0=seconds or 1=minutes, default is 0"); +MODULE_PARM_DESC(unit, + "set unit to use, 0=seconds or 1=minutes, default is 0"); #endif module_param(timeout, int, 0); MODULE_PARM_DESC(timeout, "range is 1-255 units, default is 60"); module_param(nowayout, int, 0); -MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); +MODULE_PARM_DESC(nowayout, + "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); |