diff options
| author | Rasmus Villemoes <rasmus.villemoes@prevas.dk> | 2021-08-19 11:56:59 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2021-08-31 12:04:03 +0200 |
| commit | f1b112afbb6d7a1d88fd2ad3b4a285b95612757c (patch) | |
| tree | a1f880bc533650c57d0e4311875ed10b941922a3 | |
| parent | 3eaf6e2e42c5855036a11dd7c00831226c27f152 (diff) | |
| download | u-boot-f1b112afbb6d7a1d88fd2ad3b4a285b95612757c.zip u-boot-f1b112afbb6d7a1d88fd2ad3b4a285b95612757c.tar.gz u-boot-f1b112afbb6d7a1d88fd2ad3b4a285b95612757c.tar.bz2 | |
watchdog: wdt-uclass.c: keep track of each device's running state
As a step towards handling all DM watchdogs in watchdog_reset(), use a
per-device flag to keep track of whether the device has been started
instead of a bit in gd->flags.
We will still need that bit to know whether we are past
initr_watchdog() and hence have populated gd->watchdog_dev -
incidentally, that is how it was used prior to commit 9c44ff1c5f3c.
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
| -rw-r--r-- | drivers/watchdog/wdt-uclass.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/watchdog/wdt-uclass.c b/drivers/watchdog/wdt-uclass.c index 0a1f437..358fc68 100644 --- a/drivers/watchdog/wdt-uclass.c +++ b/drivers/watchdog/wdt-uclass.c @@ -33,6 +33,8 @@ struct wdt_priv { * ->reset(). */ ulong next_reset; + /* Whether watchdog_start() has been called on the device. */ + bool running; }; static void init_watchdog_dev(struct udevice *dev) @@ -74,6 +76,7 @@ int initr_watchdog(void) } init_watchdog_dev(gd->watchdog_dev); + gd->flags |= GD_FLG_WDT_READY; return 0; } @@ -86,8 +89,11 @@ int wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags) return -ENOSYS; ret = ops->start(dev, timeout_ms, flags); - if (ret == 0) - gd->flags |= GD_FLG_WDT_READY; + if (ret == 0) { + struct wdt_priv *priv = dev_get_uclass_priv(dev); + + priv->running = true; + } return ret; } @@ -101,8 +107,11 @@ int wdt_stop(struct udevice *dev) return -ENOSYS; ret = ops->stop(dev); - if (ret == 0) - gd->flags &= ~GD_FLG_WDT_READY; + if (ret == 0) { + struct wdt_priv *priv = dev_get_uclass_priv(dev); + + priv->running = false; + } return ret; } @@ -156,6 +165,9 @@ void watchdog_reset(void) dev = gd->watchdog_dev; priv = dev_get_uclass_priv(dev); + if (!priv->running) + return; + /* Do not reset the watchdog too often */ now = get_timer(0); if (time_after_eq(now, priv->next_reset)) { |