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authorStefan Riedmueller <s.riedmueller@phytec.de>2020-04-03 16:07:28 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-06-25 16:32:58 +0300
commit6fe93f52ad991f9e637476acd1ce96ab8488290b (patch)
treec3bc55d0b39a24de477090b81d2714e27e6f9e4b /drivers/watchdog
parent4053198b37f663e94540455310f97602261e517e (diff)
downloadlinux-6fe93f52ad991f9e637476acd1ce96ab8488290b.tar.xz
watchdog: da9062: No need to ping manually before setting timeout
[ Upstream commit a0948ddba65f4f6d3cfb5e2b84685485d0452966 ] There is actually no need to ping the watchdog before disabling it during timeout change. Disabling the watchdog already takes care of resetting the counter. This fixes an issue during boot when the userspace watchdog handler takes over and the watchdog is already running. Opening the watchdog in this case leads to the first ping and directly after that without the required heartbeat delay a second ping issued by the set_timeout call. Due to the missing delay this resulted in a reset. Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Link: https://lore.kernel.org/r/20200403130728.39260-3-s.riedmueller@phytec.de Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/da9062_wdt.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/watchdog/da9062_wdt.c b/drivers/watchdog/da9062_wdt.c
index 7f0a8e635286..132d45d003ce 100644
--- a/drivers/watchdog/da9062_wdt.c
+++ b/drivers/watchdog/da9062_wdt.c
@@ -60,11 +60,6 @@ static int da9062_wdt_update_timeout_register(struct da9062_watchdog *wdt,
unsigned int regval)
{
struct da9062 *chip = wdt->hw;
- int ret;
-
- ret = da9062_reset_watchdog_timer(wdt);
- if (ret)
- return ret;
regmap_update_bits(chip->regmap,
DA9062AA_CONTROL_D,