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| author |   Jerry Hoemann <jerry.hoemann@hpe.com> | 2019-05-17 14:59:39 -0600 |
|---|---|---|
| committer |   Wim Van Sebroeck <wim@linux-watchdog.org> | 2019-07-08 16:10:08 +0200 |
| commit | c22d8e38e475c3a9fcc5923f98ac8cfdee8b1ad7 (patch) | |
| tree | 5bcec186c27c4fcd29e1eb783a6b83ae85308f09 /drivers/watchdog | |
| parent | watchdog/hpwdt: Stop hpwdt on unregister. (diff) | |
| download | linux-dev-c22d8e38e475c3a9fcc5923f98ac8cfdee8b1ad7.tar.xz linux-dev-c22d8e38e475c3a9fcc5923f98ac8cfdee8b1ad7.zip | |
watchdog/hpwdt: Advertize max_hw_heartbeat_ms
Set max_hw_heartbeat_ms instead of max_timeout so that user client can
set timeout range in excess of what the underlying hardware supports.
Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/hpwdt.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index b2cba8851cf2..6ad6ce53ed52 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -58,9 +58,9 @@ static const struct pci_device_id hpwdt_blacklist[] = { static int hpwdt_start(struct watchdog_device *wdd) { int control = 0x81 | (pretimeout ? 0x4 : 0); - int reload = SECS_TO_TICKS(wdd->timeout); + int reload = SECS_TO_TICKS(min(wdd->timeout, wdd->max_hw_heartbeat_ms/1000)); - dev_dbg(wdd->parent, "start watchdog 0x%08x:0x%02x\n", reload, control); + dev_dbg(wdd->parent, "start watchdog 0x%08x:0x%08x:0x%02x\n", wdd->timeout, reload, control); iowrite16(reload, hpwdt_timer_reg); iowrite8(control, hpwdt_timer_con); @@ -87,9 +87,9 @@ static int hpwdt_stop_core(struct watchdog_device *wdd) static int hpwdt_ping(struct watchdog_device *wdd) { - int reload = SECS_TO_TICKS(wdd->timeout); + int reload = SECS_TO_TICKS(min(wdd->timeout, wdd->max_hw_heartbeat_ms/1000)); - dev_dbg(wdd->parent, "ping watchdog 0x%08x\n", reload); + dev_dbg(wdd->parent, "ping watchdog 0x%08x:0x%08x\n", wdd->timeout, reload); iowrite16(reload, hpwdt_timer_reg); return 0; @@ -204,9 +204,9 @@ static struct watchdog_device hpwdt_dev = { .info = &ident, .ops = &hpwdt_ops, .min_timeout = 1, - .max_timeout = HPWDT_MAX_TIMER, .timeout = DEFAULT_MARGIN, .pretimeout = PRETIMEOUT_SEC, + .max_hw_heartbeat_ms = HPWDT_MAX_TIMER * 1000, }; |