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drivers/watchdog/cpwd.c
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/* cpwd.c - driver implementation for hardware watchdog |
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* timers found on Sun Microsystems CP1400 and CP1500 boards. * |
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* This device supports both the generic Linux watchdog |
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* interface and Solaris-compatible ioctls as best it is * able. * |
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* NOTE: CP1400 systems appear to have a defective intr_mask * register on the PLD, preventing the disabling of * timer interrupts. We use a timer to periodically * reset 'stopped' watchdogs on affected platforms. |
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* |
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* Copyright (c) 2000 Eric Brower (ebrower@usa.net) |
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* Copyright (C) 2008 David S. Miller <davem@davemloft.net> |
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*/ #include <linux/kernel.h> #include <linux/module.h> #include <linux/fs.h> #include <linux/errno.h> #include <linux/major.h> #include <linux/init.h> #include <linux/miscdevice.h> |
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#include <linux/interrupt.h> #include <linux/ioport.h> #include <linux/timer.h> |
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#include <linux/slab.h> |
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#include <linux/mutex.h> |
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#include <linux/io.h> |
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#include <linux/of.h> #include <linux/of_device.h> |
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#include <linux/uaccess.h> |
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#include <asm/irq.h> |
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#include <asm/watchdog.h> |
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#define DRIVER_NAME "cpwd" #define PFX DRIVER_NAME ": " |
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#define WD_OBPNAME "watchdog" |
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#define WD_BADMODEL "SUNW,501-5336" |
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#define WD_BTIMEOUT (jiffies + (HZ * 1000)) #define WD_BLIMIT 0xFFFF |
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#define WD0_MINOR 212 |
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#define WD1_MINOR 213 #define WD2_MINOR 214 |
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/* Internal driver definitions. */ #define WD0_ID 0 #define WD1_ID 1 #define WD2_ID 2 #define WD_NUMDEVS 3 |
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#define WD_INTR_OFF 0 #define WD_INTR_ON 1 |
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#define WD_STAT_INIT 0x01 /* Watchdog timer is initialized */ #define WD_STAT_BSTOP 0x02 /* Watchdog timer is brokenstopped */ #define WD_STAT_SVCD 0x04 /* Watchdog interrupt occurred */ /* Register value definitions */ #define WD0_INTR_MASK 0x01 /* Watchdog device interrupt masks */ #define WD1_INTR_MASK 0x02 #define WD2_INTR_MASK 0x04 #define WD_S_RUNNING 0x01 /* Watchdog device status running */ #define WD_S_EXPIRED 0x02 /* Watchdog device status expired */ |
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struct cpwd { void __iomem *regs; spinlock_t lock; unsigned int irq; unsigned long timeout; bool enabled; bool reboot; bool broken; bool initialized; struct { struct miscdevice misc; void __iomem *regs; u8 intr_mask; u8 runstatus; u16 timeout; } devs[WD_NUMDEVS]; }; |
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static DEFINE_MUTEX(cpwd_mutex); |
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static struct cpwd *cpwd_device; |
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/* Sun uses Altera PLD EPF8820ATC144-4 |
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* providing three hardware watchdogs: * |
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* 1) RIC - sends an interrupt when triggered * 2) XIR - asserts XIR_B_RESET when triggered, resets CPU * 3) POR - asserts POR_B_RESET when triggered, resets CPU, backplane, board |
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* *** Timer register block definition (struct wd_timer_regblk) * |
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* dcntr and limit registers (halfword access): |
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* ------------------- * | 15 | ...| 1 | 0 | * ------------------- * |- counter val -| * ------------------- |
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* dcntr - Current 16-bit downcounter value. * When downcounter reaches '0' watchdog expires. * Reading this register resets downcounter with * 'limit' value. * limit - 16-bit countdown value in 1/10th second increments. * Writing this register begins countdown with input value. * Reading from this register does not affect counter. |
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* NOTES: After watchdog reset, dcntr and limit contain '1' * * status register (byte access): * --------------------------- * | 7 | ... | 2 | 1 | 0 | * --------------+------------ * |- UNUSED -| EXP | RUN | * --------------------------- * status- Bit 0 - Watchdog is running |
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* Bit 1 - Watchdog has expired |
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* *** PLD register block definition (struct wd_pld_regblk) * * intr_mask register (byte access): * --------------------------------- * | 7 | ... | 3 | 2 | 1 | 0 | * +-------------+------------------ * |- UNUSED -| WD3 | WD2 | WD1 | * --------------------------------- * WD3 - 1 == Interrupt disabled for watchdog 3 * WD2 - 1 == Interrupt disabled for watchdog 2 * WD1 - 1 == Interrupt disabled for watchdog 1 * * pld_status register (byte access): * UNKNOWN, MAGICAL MYSTERY REGISTER * */ #define WD_TIMER_REGSZ 16 #define WD0_OFF 0 #define WD1_OFF (WD_TIMER_REGSZ * 1) #define WD2_OFF (WD_TIMER_REGSZ * 2) #define PLD_OFF (WD_TIMER_REGSZ * 3) #define WD_DCNTR 0x00 #define WD_LIMIT 0x04 #define WD_STATUS 0x08 #define PLD_IMASK (PLD_OFF + 0x00) #define PLD_STATUS (PLD_OFF + 0x04) |
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static struct timer_list cpwd_timer; |
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static int wd0_timeout; static int wd1_timeout; static int wd2_timeout; |
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module_param(wd0_timeout, int, 0); |
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MODULE_PARM_DESC(wd0_timeout, "Default watchdog0 timeout in 1/10secs"); |
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module_param(wd1_timeout, int, 0); |
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MODULE_PARM_DESC(wd1_timeout, "Default watchdog1 timeout in 1/10secs"); |
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module_param(wd2_timeout, int, 0); |
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MODULE_PARM_DESC(wd2_timeout, "Default watchdog2 timeout in 1/10secs"); |
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MODULE_AUTHOR("Eric Brower <ebrower@usa.net>"); MODULE_DESCRIPTION("Hardware watchdog driver for Sun Microsystems CP1400/1500"); |
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MODULE_LICENSE("GPL"); |
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MODULE_SUPPORTED_DEVICE("watchdog"); static void cpwd_writew(u16 val, void __iomem *addr) { writew(cpu_to_le16(val), addr); } static u16 cpwd_readw(void __iomem *addr) { u16 val = readw(addr); return le16_to_cpu(val); } static void cpwd_writeb(u8 val, void __iomem *addr) { writeb(val, addr); } static u8 cpwd_readb(void __iomem *addr) { return readb(addr); } |
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/* Enable or disable watchdog interrupts * Because of the CP1400 defect this should only be * called during initialzation or by wd_[start|stop]timer() * |
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* index - sub-device index, or -1 for 'all' |
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* enable - non-zero to enable interrupts, zero to disable |
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*/ |
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static void cpwd_toggleintr(struct cpwd *p, int index, int enable) { unsigned char curregs = cpwd_readb(p->regs + PLD_IMASK); |
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unsigned char setregs = (index == -1) ? (WD0_INTR_MASK | WD1_INTR_MASK | WD2_INTR_MASK) : |
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(p->devs[index].intr_mask); if (enable == WD_INTR_ON) curregs &= ~setregs; else curregs |= setregs; cpwd_writeb(curregs, p->regs + PLD_IMASK); } /* Restarts timer with maximum limit value and * does not unset 'brokenstop' value. |
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*/ |
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static void cpwd_resetbrokentimer(struct cpwd *p, int index) |
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{ |
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cpwd_toggleintr(p, index, WD_INTR_ON); cpwd_writew(WD_BLIMIT, p->devs[index].regs + WD_LIMIT); |
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} |
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/* Timer method called to reset stopped watchdogs-- * because of the PLD bug on CP1400, we cannot mask * interrupts within the PLD so me must continually * reset the timers ad infinitum. */ static void cpwd_brokentimer(unsigned long data) { struct cpwd *p = (struct cpwd *) data; int id, tripped = 0; /* kill a running timer instance, in case we * were called directly instead of by kernel timer */ if (timer_pending(&cpwd_timer)) del_timer(&cpwd_timer); |
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for (id = 0; id < WD_NUMDEVS; id++) { if (p->devs[id].runstatus & WD_STAT_BSTOP) { ++tripped; cpwd_resetbrokentimer(p, id); } } |
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if (tripped) { /* there is at least one timer brokenstopped-- reschedule */ cpwd_timer.expires = WD_BTIMEOUT; add_timer(&cpwd_timer); } } /* Reset countdown timer with 'limit' value and continue countdown. * This will not start a stopped timer. |
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*/ |
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static void cpwd_pingtimer(struct cpwd *p, int index) |
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{ |
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if (cpwd_readb(p->devs[index].regs + WD_STATUS) & WD_S_RUNNING) cpwd_readw(p->devs[index].regs + WD_DCNTR); |
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} |
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/* Stop a running watchdog timer-- the timer actually keeps * running, but the interrupt is masked so that no action is * taken upon expiration. |
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*/ |
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static void cpwd_stoptimer(struct cpwd *p, int index) |
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{ |
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if (cpwd_readb(p->devs[index].regs + WD_STATUS) & WD_S_RUNNING) { cpwd_toggleintr(p, index, WD_INTR_OFF); |
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if (p->broken) { p->devs[index].runstatus |= WD_STAT_BSTOP; cpwd_brokentimer((unsigned long) p); } } |
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} |
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/* Start a watchdog timer with the specified limit value * If the watchdog is running, it will be restarted with * the provided limit value. * * This function will enable interrupts on the specified * watchdog. |
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*/ |
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static void cpwd_starttimer(struct cpwd *p, int index) |
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{ |
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if (p->broken) p->devs[index].runstatus &= ~WD_STAT_BSTOP; p->devs[index].runstatus &= ~WD_STAT_SVCD; |
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|
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cpwd_writew(p->devs[index].timeout, p->devs[index].regs + WD_LIMIT); cpwd_toggleintr(p, index, WD_INTR_ON); |
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} |
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static int cpwd_getstatus(struct cpwd *p, int index) |
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{ |
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unsigned char stat = cpwd_readb(p->devs[index].regs + WD_STATUS); unsigned char intr = cpwd_readb(p->devs[index].regs + PLD_IMASK); unsigned char ret = WD_STOPPED; /* determine STOPPED */ |
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if (!stat) |
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return ret; /* determine EXPIRED vs FREERUN vs RUNNING */ else if (WD_S_EXPIRED & stat) { ret = WD_EXPIRED; |
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} else if (WD_S_RUNNING & stat) { |
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if (intr & p->devs[index].intr_mask) { ret = WD_FREERUN; } else { /* Fudge WD_EXPIRED status for defective CP1400-- |
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* IF timer is running |
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* AND brokenstop is set * AND an interrupt has been serviced |
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* we are WD_EXPIRED. * |
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* IF timer is running |
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* AND brokenstop is set * AND no interrupt has been serviced |
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* we are WD_FREERUN. */ if (p->broken && (p->devs[index].runstatus & WD_STAT_BSTOP)) { if (p->devs[index].runstatus & WD_STAT_SVCD) { ret = WD_EXPIRED; } else { |
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/* we could as well pretend * we are expired */ |
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ret = WD_FREERUN; } } else { ret = WD_RUNNING; |
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} } } |
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/* determine SERVICED */ if (p->devs[index].runstatus & WD_STAT_SVCD) ret |= WD_SERVICED; |
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return ret; |
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} static irqreturn_t cpwd_interrupt(int irq, void *dev_id) { struct cpwd *p = dev_id; /* Only WD0 will interrupt-- others are NMI and we won't * see them here.... */ spin_lock_irq(&p->lock); cpwd_stoptimer(p, WD0_ID); p->devs[WD0_ID].runstatus |= WD_STAT_SVCD; spin_unlock_irq(&p->lock); return IRQ_HANDLED; |
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} |
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static int cpwd_open(struct inode *inode, struct file *f) |
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{ |
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struct cpwd *p = cpwd_device; |
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mutex_lock(&cpwd_mutex); |
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switch (iminor(inode)) { case WD0_MINOR: case WD1_MINOR: case WD2_MINOR: break; |
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|
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default: |
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mutex_unlock(&cpwd_mutex); |
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return -ENODEV; |
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} /* Register IRQ on first open of device */ |
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if (!p->initialized) { |
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if (request_irq(p->irq, &cpwd_interrupt, |
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IRQF_SHARED, DRIVER_NAME, p)) { |
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printk(KERN_ERR PFX "Cannot register IRQ %d ", |
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p->irq); |
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mutex_unlock(&cpwd_mutex); |
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return -EBUSY; |
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} |
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p->initialized = true; |
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} |
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mutex_unlock(&cpwd_mutex); |
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return nonseekable_open(inode, f); |
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} |
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static int cpwd_release(struct inode *inode, struct file *file) |
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{ return 0; } |
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static long cpwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
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{ |
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static const struct watchdog_info info = { |
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.options = WDIOF_SETTIMEOUT, .firmware_version = 1, .identity = DRIVER_NAME, |
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}; |
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void __user *argp = (void __user *)arg; |
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struct inode *inode = file->f_path.dentry->d_inode; |
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int index = iminor(inode) - WD0_MINOR; struct cpwd *p = cpwd_device; int setopt = 0; |
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|
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switch (cmd) { /* Generic Linux IOCTLs */ case WDIOC_GETSUPPORT: if (copy_to_user(argp, &info, sizeof(struct watchdog_info))) return -EFAULT; break; |
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case WDIOC_GETSTATUS: case WDIOC_GETBOOTSTATUS: if (put_user(0, (int __user *)argp)) return -EFAULT; break; case WDIOC_KEEPALIVE: cpwd_pingtimer(p, index); break; case WDIOC_SETOPTIONS: if (copy_from_user(&setopt, argp, sizeof(unsigned int))) return -EFAULT; if (setopt & WDIOS_DISABLECARD) { if (p->enabled) return -EINVAL; cpwd_stoptimer(p, index); } else if (setopt & WDIOS_ENABLECARD) { cpwd_starttimer(p, index); } else { return -EINVAL; |
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} |
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break; /* Solaris-compatible IOCTLs */ case WIOCGSTAT: setopt = cpwd_getstatus(p, index); if (copy_to_user(argp, &setopt, sizeof(unsigned int))) return -EFAULT; break; case WIOCSTART: cpwd_starttimer(p, index); break; case WIOCSTOP: if (p->enabled) |
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return -EINVAL; |
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cpwd_stoptimer(p, index); break; default: return -EINVAL; |
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} |
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return 0; |
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} |
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static long cpwd_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
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{ int rval = -ENOIOCTLCMD; switch (cmd) { /* solaris ioctls are specific to this driver */ case WIOCSTART: case WIOCSTOP: case WIOCGSTAT: |
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mutex_lock(&cpwd_mutex); |
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rval = cpwd_ioctl(file, cmd, arg); |
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mutex_unlock(&cpwd_mutex); |
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break; |
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/* everything else is handled by the generic compat layer */ default: break; } return rval; } |
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static ssize_t cpwd_write(struct file *file, const char __user *buf, |
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size_t count, loff_t *ppos) |
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{ |
c5f8556cb cpwatchdog: Clean... |
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struct inode *inode = file->f_path.dentry->d_inode; struct cpwd *p = cpwd_device; int index = iminor(inode); |
1da177e4c Linux-2.6.12-rc2 |
487 488 |
if (count) { |
c5f8556cb cpwatchdog: Clean... |
489 |
cpwd_pingtimer(p, index); |
1da177e4c Linux-2.6.12-rc2 |
490 491 |
return 1; } |
1da177e4c Linux-2.6.12-rc2 |
492 |
|
c5f8556cb cpwatchdog: Clean... |
493 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
494 |
} |
927d69611 [WATCHDOG] cpwd.c... |
495 |
static ssize_t cpwd_read(struct file *file, char __user *buffer, |
c5f8556cb cpwatchdog: Clean... |
496 |
size_t count, loff_t *ppos) |
1da177e4c Linux-2.6.12-rc2 |
497 |
{ |
c5f8556cb cpwatchdog: Clean... |
498 |
return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
499 |
} |
c5f8556cb cpwatchdog: Clean... |
500 |
static const struct file_operations cpwd_fops = { |
9626dd75c [WATCHDOG] cpwd.c... |
501 502 503 504 505 506 507 |
.owner = THIS_MODULE, .unlocked_ioctl = cpwd_ioctl, .compat_ioctl = cpwd_compat_ioctl, .open = cpwd_open, .write = cpwd_write, .read = cpwd_read, .release = cpwd_release, |
6038f373a llseek: automatic... |
508 |
.llseek = no_llseek, |
1da177e4c Linux-2.6.12-rc2 |
509 |
}; |
1c48a5c93 dt: Eliminate of_... |
510 |
static int __devinit cpwd_probe(struct platform_device *op) |
1da177e4c Linux-2.6.12-rc2 |
511 |
{ |
c5f8556cb cpwatchdog: Clean... |
512 513 514 515 516 |
struct device_node *options; const char *str_prop; const void *prop_val; int i, err = -EINVAL; struct cpwd *p; |
1da177e4c Linux-2.6.12-rc2 |
517 |
|
c5f8556cb cpwatchdog: Clean... |
518 519 |
if (cpwd_device) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
520 |
|
c5f8556cb cpwatchdog: Clean... |
521 522 523 524 525 526 |
p = kzalloc(sizeof(*p), GFP_KERNEL); err = -ENOMEM; if (!p) { printk(KERN_ERR PFX "Unable to allocate struct cpwd. "); goto out; |
1da177e4c Linux-2.6.12-rc2 |
527 |
} |
1da177e4c Linux-2.6.12-rc2 |
528 |
|
1636f8ac2 sparc/of: Move of... |
529 |
p->irq = op->archdata.irqs[0]; |
1da177e4c Linux-2.6.12-rc2 |
530 |
|
c5f8556cb cpwatchdog: Clean... |
531 |
spin_lock_init(&p->lock); |
1da177e4c Linux-2.6.12-rc2 |
532 |
|
c5f8556cb cpwatchdog: Clean... |
533 534 535 536 537 538 |
p->regs = of_ioremap(&op->resource[0], 0, 4 * WD_TIMER_REGSZ, DRIVER_NAME); if (!p->regs) { printk(KERN_ERR PFX "Unable to map registers. "); goto out_free; |
1da177e4c Linux-2.6.12-rc2 |
539 |
} |
1da177e4c Linux-2.6.12-rc2 |
540 |
|
c5f8556cb cpwatchdog: Clean... |
541 542 543 544 545 546 547 |
options = of_find_node_by_path("/options"); err = -ENODEV; if (!options) { printk(KERN_ERR PFX "Unable to find /options node. "); goto out_iounmap; } |
1da177e4c Linux-2.6.12-rc2 |
548 |
|
c5f8556cb cpwatchdog: Clean... |
549 550 |
prop_val = of_get_property(options, "watchdog-enable?", NULL); p->enabled = (prop_val ? true : false); |
1da177e4c Linux-2.6.12-rc2 |
551 |
|
c5f8556cb cpwatchdog: Clean... |
552 553 |
prop_val = of_get_property(options, "watchdog-reboot?", NULL); p->reboot = (prop_val ? true : false); |
1da177e4c Linux-2.6.12-rc2 |
554 |
|
c5f8556cb cpwatchdog: Clean... |
555 556 557 |
str_prop = of_get_property(options, "watchdog-timeout", NULL); if (str_prop) p->timeout = simple_strtoul(str_prop, NULL, 10); |
1da177e4c Linux-2.6.12-rc2 |
558 |
|
c5f8556cb cpwatchdog: Clean... |
559 560 561 |
/* CP1400s seem to have broken PLD implementations-- the * interrupt_mask register cannot be written, so no timer * interrupts can be masked within the PLD. |
1da177e4c Linux-2.6.12-rc2 |
562 |
*/ |
61c7a080a of: Always use 's... |
563 |
str_prop = of_get_property(op->dev.of_node, "model", NULL); |
c5f8556cb cpwatchdog: Clean... |
564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 |
p->broken = (str_prop && !strcmp(str_prop, WD_BADMODEL)); if (!p->enabled) cpwd_toggleintr(p, -1, WD_INTR_OFF); for (i = 0; i < WD_NUMDEVS; i++) { static const char *cpwd_names[] = { "RIC", "XIR", "POR" }; static int *parms[] = { &wd0_timeout, &wd1_timeout, &wd2_timeout }; struct miscdevice *mp = &p->devs[i].misc; mp->minor = WD0_MINOR + i; mp->name = cpwd_names[i]; mp->fops = &cpwd_fops; p->devs[i].regs = p->regs + (i * WD_TIMER_REGSZ); p->devs[i].intr_mask = (WD0_INTR_MASK << i); p->devs[i].runstatus &= ~WD_STAT_BSTOP; p->devs[i].runstatus |= WD_STAT_INIT; p->devs[i].timeout = p->timeout; if (*parms[i]) p->devs[i].timeout = *parms[i]; err = misc_register(&p->devs[i].misc); if (err) { printk(KERN_ERR "Could not register misc device for " "dev %d ", i); goto out_unregister; |
1da177e4c Linux-2.6.12-rc2 |
594 595 |
} } |
c5f8556cb cpwatchdog: Clean... |
596 597 |
if (p->broken) { init_timer(&cpwd_timer); |
5f3b27569 watchdog: cleanup... |
598 |
cpwd_timer.function = cpwd_brokentimer; |
c5f8556cb cpwatchdog: Clean... |
599 600 601 602 603 604 |
cpwd_timer.data = (unsigned long) p; cpwd_timer.expires = WD_BTIMEOUT; printk(KERN_INFO PFX "PLD defect workaround enabled for " "model " WD_BADMODEL ". "); |
1da177e4c Linux-2.6.12-rc2 |
605 |
} |
1da177e4c Linux-2.6.12-rc2 |
606 |
|
c5f8556cb cpwatchdog: Clean... |
607 608 609 |
dev_set_drvdata(&op->dev, p); cpwd_device = p; err = 0; |
1da177e4c Linux-2.6.12-rc2 |
610 |
|
c5f8556cb cpwatchdog: Clean... |
611 612 |
out: return err; |
1da177e4c Linux-2.6.12-rc2 |
613 |
|
c5f8556cb cpwatchdog: Clean... |
614 615 616 |
out_unregister: for (i--; i >= 0; i--) misc_deregister(&p->devs[i].misc); |
1da177e4c Linux-2.6.12-rc2 |
617 |
|
c5f8556cb cpwatchdog: Clean... |
618 619 620 621 622 623 |
out_iounmap: of_iounmap(&op->resource[0], p->regs, 4 * WD_TIMER_REGSZ); out_free: kfree(p); goto out; |
1da177e4c Linux-2.6.12-rc2 |
624 |
} |
2dc115813 of/device: Replac... |
625 |
static int __devexit cpwd_remove(struct platform_device *op) |
1da177e4c Linux-2.6.12-rc2 |
626 |
{ |
c5f8556cb cpwatchdog: Clean... |
627 628 |
struct cpwd *p = dev_get_drvdata(&op->dev); int i; |
bbd562d71 watchdog: cpwd: F... |
629 |
for (i = 0; i < WD_NUMDEVS; i++) { |
c5f8556cb cpwatchdog: Clean... |
630 631 632 633 634 635 |
misc_deregister(&p->devs[i].misc); if (!p->enabled) { cpwd_stoptimer(p, i); if (p->devs[i].runstatus & WD_STAT_BSTOP) cpwd_resetbrokentimer(p, i); |
1da177e4c Linux-2.6.12-rc2 |
636 637 |
} } |
c5f8556cb cpwatchdog: Clean... |
638 639 |
if (p->broken) del_timer_sync(&cpwd_timer); |
1da177e4c Linux-2.6.12-rc2 |
640 |
|
c5f8556cb cpwatchdog: Clean... |
641 642 |
if (p->initialized) free_irq(p->irq, p); |
1da177e4c Linux-2.6.12-rc2 |
643 |
|
c5f8556cb cpwatchdog: Clean... |
644 645 |
of_iounmap(&op->resource[0], p->regs, 4 * WD_TIMER_REGSZ); kfree(p); |
1da177e4c Linux-2.6.12-rc2 |
646 |
|
c5f8556cb cpwatchdog: Clean... |
647 |
cpwd_device = NULL; |
1da177e4c Linux-2.6.12-rc2 |
648 |
|
c5f8556cb cpwatchdog: Clean... |
649 650 |
return 0; } |
1da177e4c Linux-2.6.12-rc2 |
651 |
|
fd098316e sparc: Annotate o... |
652 |
static const struct of_device_id cpwd_match[] = { |
c5f8556cb cpwatchdog: Clean... |
653 654 655 656 657 658 |
{ .name = "watchdog", }, {}, }; MODULE_DEVICE_TABLE(of, cpwd_match); |
1da177e4c Linux-2.6.12-rc2 |
659 |
|
1c48a5c93 dt: Eliminate of_... |
660 |
static struct platform_driver cpwd_driver = { |
4018294b5 of: Remove duplic... |
661 662 663 664 665 |
.driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, .of_match_table = cpwd_match, }, |
c5f8556cb cpwatchdog: Clean... |
666 667 668 |
.probe = cpwd_probe, .remove = __devexit_p(cpwd_remove), }; |
1da177e4c Linux-2.6.12-rc2 |
669 |
|
b8ec61189 watchdog: convert... |
670 |
module_platform_driver(cpwd_driver); |