From f1b9e29983aeb2b80d231e96732f71f04387530b Mon Sep 17 00:00:00 2001 From: Stefan Riedmueller Date: Fri, 3 Apr 2020 15:07:28 +0200 Subject: [PATCH] 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 Reviewed-by: Guenter Roeck Reviewed-by: Adam Thomson Link: https://lore.kernel.org/r/20200403130728.39260-3-s.riedmueller@phytec.de Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck Signed-off-by: Sasha Levin --- drivers/watchdog/da9062_wdt.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/watchdog/da9062_wdt.c b/drivers/watchdog/da9062_wdt.c index e92f38fcb7a4..1b9bcfed39e9 100644 --- a/drivers/watchdog/da9062_wdt.c +++ b/drivers/watchdog/da9062_wdt.c @@ -55,11 +55,6 @@ 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,