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| author |   Raphael Assenat <raph@8d.com> | 2009-06-29 13:56:52 -0400 |
|---|---|---|
| committer |   Wim Van Sebroeck <wim@iguana.be> | 2009-07-09 18:29:38 +0000 |
| commit | a6f052e39c3832b5842c4f44d9b3a4295dacfc4a (patch) | |
| tree | 28c758c809f680033cfd828ec09e944b70b4938d /drivers/watchdog/sa1100_wdt.c | |
| parent | [WATCHDOG] w83697ug, fix lock imbalance (diff) | |
| download | linux-dev-a6f052e39c3832b5842c4f44d9b3a4295dacfc4a.tar.xz linux-dev-a6f052e39c3832b5842c4f44d9b3a4295dacfc4a.zip | |
[WATCHDOG] SA1100 watchdog maximum timeout
This patch replaces the hardcoded 255 seconds limit for a real limit based on
oscr_freq.
Also, the 'firmware_version' field is changed to '1' to allow the user
space application to easily detect that this driver supports a higher
maximum timeout.
Signed-off-by: Raphael Assenat <raph@8D.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/sa1100_wdt.c')
| -rw-r--r-- | drivers/watchdog/sa1100_wdt.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c index ee1caae4d33b..016245419fad 100644 --- a/drivers/watchdog/sa1100_wdt.c +++ b/drivers/watchdog/sa1100_wdt.c @@ -38,7 +38,7 @@ static unsigned long oscr_freq; static unsigned long sa1100wdt_users; -static int pre_margin; +static unsigned int pre_margin; static int boot_status; /* @@ -84,6 +84,7 @@ static const struct watchdog_info ident = { .options = WDIOF_CARDRESET | WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING, .identity = "SA1100/PXA255 Watchdog", + .firmware_version = 1, }; static long sa1100dog_ioctl(struct file *file, unsigned int cmd, @@ -118,7 +119,7 @@ static long sa1100dog_ioctl(struct file *file, unsigned int cmd, if (ret) break; - if (time <= 0 || time > 255) { + if (time <= 0 || (oscr_freq * (long long)time >= 0xffffffff)) { ret = -EINVAL; break; } |