From c22d8e38e475c3a9fcc5923f98ac8cfdee8b1ad7 Mon Sep 17 00:00:00 2001 From: Jerry Hoemann Date: Fri, 17 May 2019 14:59:39 -0600 Subject: 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 Reviewed-by: Guenter Roeck Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/hpwdt.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers/watchdog/hpwdt.c') 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, }; -- cgit v1.2.3