Improve the status messages that are displayed during some operations of the
PowerPC watchdog timer driver. When the watchdog is enabled, the timeout is
displayed as a number of seconds, instead of an obscure "period". The "period"
is the position of a bit in a 64-bit timer register. The higher the value,
the quicker the watchdog timeout occurs. Some people chose a high "period"
value for the timer and get confused as to why the board resets within a
few seconds.
Messages displayed during open and close are now debug messages, so that they
don't clutter the console by default. Finally, printk() is replaced with the
pr_xxx() equivalent.
Signed-off-by: Timur Tabi <ti...@freescale.com>
---
drivers/watchdog/booke_wdt.c | 17 ++++++++---------
1 files changed, 8 insertions(+), 9 deletions(-)
diff --git a/drivers/watchdog/booke_wdt.c b/drivers/watchdog/booke_wdt.c
index 7e7ec9c..935d0dd 100644
--- a/drivers/watchdog/booke_wdt.c
+++ b/drivers/watchdog/booke_wdt.c
@@ -221,9 +221,8 @@ static int booke_wdt_open(struct inode *inode, struct file
*file)
if (booke_wdt_enabled == 0) {
booke_wdt_enabled = 1;
on_each_cpu(__booke_wdt_enable, NULL, 0);
- printk(KERN_INFO
- "PowerPC Book-E Watchdog Timer Enabled (wdt_period=%d)\n",
- booke_wdt_period);
+ pr_debug("booke_wdt: watchdog enabled (timeout = %llu sec)\n",
+ period_to_sec(booke_wdt_period));
}
spin_unlock(&booke_wdt_lock);
@@ -240,6 +239,7 @@ static int booke_wdt_release(struct inode *inode, struct
file *file)
*/
on_each_cpu(__booke_wdt_disable, NULL, 0);
booke_wdt_enabled = 0;
+ pr_debug("booke_wdt: watchdog disabled\n",
#endif
clear_bit(0, &wdt_is_active);
@@ -271,21 +271,20 @@ static int __init booke_wdt_init(void)
{
int ret = 0;
- printk(KERN_INFO "PowerPC Book-E Watchdog Timer Loaded\n");
+ pr_info("PowerPC Book-E Watchdog Timer Loaded\n");
ident.firmware_version = cur_cpu_spec->pvr_value;
ret = misc_register(&booke_wdt_miscdev);
if (ret) {
- printk(KERN_CRIT "Cannot register miscdev on minor=%d: %d\n",
- WATCHDOG_MINOR, ret);
+ pr_err("booke_wdt: cannot register device (minor=%u, ret=%i)\n",
+ WATCHDOG_MINOR, ret);
return ret;
}
spin_lock(&booke_wdt_lock);
if (booke_wdt_enabled == 1) {
- printk(KERN_INFO
- "PowerPC Book-E Watchdog Timer Enabled (wdt_period=%d)\n",
- booke_wdt_period);
+ pr_info("booke_wdt: watchdog enabled (timeout = %llu sec)\n",
+ period_to_sec(booke_wdt_period));
on_each_cpu(__booke_wdt_enable, NULL, 0);
}
spin_unlock(&booke_wdt_lock);
--
1.7.3.4
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