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author | Oleksij Rempel <o.rempel@pengutronix.de> | 2018-03-13 09:33:27 +0100 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-03-23 07:35:25 +0100 |
commit | 10e3166076f7de31126761aa0e271415d9b9a023 (patch) | |
tree | 0eb045271fbd9c804b9ddd87b3dac3ed7d9ccf57 | |
parent | e22f2aa1671159b2a5dfc276f2bd913aa3e1022e (diff) | |
download | barebox-10e3166076f7de31126761aa0e271415d9b9a023.tar.gz barebox-10e3166076f7de31126761aa0e271415d9b9a023.tar.xz |
watchdog: provide timeout_cur value
timeout_cur will be used for watchdog poller.
Provided values should be good enough for most users
and still can be changed for separate projects and
fit to needed requirements.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r-- | drivers/watchdog/wd_core.c | 18 | ||||
-rw-r--r-- | include/watchdog.h | 1 |
2 files changed, 19 insertions, 0 deletions
diff --git a/drivers/watchdog/wd_core.c b/drivers/watchdog/wd_core.c index 845234114d..425e78551a 100644 --- a/drivers/watchdog/wd_core.c +++ b/drivers/watchdog/wd_core.c @@ -31,6 +31,16 @@ static const char *watchdog_name(struct watchdog *wd) return "unknown"; } +static int watchdog_set_cur(struct param_d *param, void *priv) +{ + struct watchdog *wd = priv; + + if (wd->timeout_cur > wd->timeout_max) + return -EINVAL; + + return 0; +} + static int watchdog_register_dev(struct watchdog *wd, const char *name, int id) { wd->dev.parent = wd->hwdev; @@ -63,11 +73,19 @@ int watchdog_register(struct watchdog *wd) if (!wd->timeout_max) wd->timeout_max = 60 * 60 * 24; + if (!wd->timeout_cur || wd->timeout_cur > wd->timeout_max) + wd->timeout_cur = wd->timeout_max; + p = dev_add_param_uint32_ro(&wd->dev, "timeout_max", &wd->timeout_max, "%u"); if (IS_ERR(p)) return PTR_ERR(p); + p = dev_add_param_uint32(&wd->dev, "timeout_cur", watchdog_set_cur, NULL, + &wd->timeout_cur, "%u", wd); + if (IS_ERR(p)) + return PTR_ERR(p); + list_add_tail(&wd->list, &watchdog_list); pr_debug("registering watchdog %s with priority %d\n", watchdog_name(wd), diff --git a/include/watchdog.h b/include/watchdog.h index a2459d2551..2f1874c196 100644 --- a/include/watchdog.h +++ b/include/watchdog.h @@ -20,6 +20,7 @@ struct watchdog { struct device_d dev; unsigned int priority; unsigned int timeout_max; + unsigned int timeout_cur; struct list_head list; }; |