static int bfin_wdt_set_timeout(unsigned long t)
{
u32 cnt, max_t, sclk;
unsigned long flags;
sclk = get_sclk();
max_t = -1 / sclk;
cnt = t * sclk;
stamp("maxtimeout=%us newtimeout=%lus (cnt=%#x)", max_t, t, cnt);
if (t > max_t) {
printk(KERN_WARNING PFX "timeout value is too large\n");
return -EINVAL;
}
spin_lock_irqsave(&bfin_wdt_spinlock, flags);
{
int run = bfin_wdt_running();
bfin_wdt_stop();
bfin_write_WDOG_CNT(cnt);
if (run)
bfin_wdt_start();
}
spin_unlock_irqrestore(&bfin_wdt_spinlock, flags);
timeout = t;
return 0;
}
static int bfin_wdt_set_timeout(unsigned long t)
{
u32 cnt;
unsigned long flags;
stampit();
cnt = t * get_sclk();
if (cnt < get_sclk()) {
printk(KERN_WARNING PFX "timeout value is too large\n");
return -EINVAL;
}
spin_lock_irqsave(&bfin_wdt_spinlock, flags);
{
int run = bfin_wdt_running();
bfin_wdt_stop();
bfin_write_WDOG_CNT(cnt);
if (run)
bfin_wdt_start();
}
spin_unlock_irqrestore(&bfin_wdt_spinlock, flags);
timeout = t;
return 0;
}
static int bfin_wdt_suspend(struct platform_device *pdev, pm_message_t state)
{
stampit();
state_before_suspend = bfin_wdt_running();
bfin_wdt_stop();
return 0;
}
