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Message-ID: <20240130055118.1917086-1-jisheng.teoh@starfivetech.com> Date: Tue, 30 Jan 2024 13:51:18 +0800 From: Ji Sheng Teoh <jisheng.teoh@...rfivetech.com> To: Xingyu Wu <xingyu.wu@...rfivetech.com>, Samin Guo <samin.guo@...rfivetech.com>, Wim Van Sebroeck <wim@...ux-watchdog.org>, Guenter Roeck <linux@...ck-us.net>, Emil Renner Berthing <emil.renner.berthing@...onical.com> Cc: Ley Foon Tan <leyfoon.tan@...rfivetech.com>, linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org, Sia Jee Heng <jeeheng.sia@...rfivetech.com> Subject: [PATCH] watchdog: starfive: check watchdog status before enabling in system resume System resume will start and enable watchdog regardless of whether the watchdog is enabled/disabled during a system suspend. Add a check to the watchdog status and only start and enable the watchdog if the watchdog status is running/active. Signed-off-by: Sia Jee Heng <jeeheng.sia@...rfivetech.com> Signed-off-by: Ji Sheng Teoh <jisheng.teoh@...rfivetech.com> --- drivers/watchdog/starfive-wdt.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/watchdog/starfive-wdt.c b/drivers/watchdog/starfive-wdt.c index e28ead24c520..f72fc38a41f8 100644 --- a/drivers/watchdog/starfive-wdt.c +++ b/drivers/watchdog/starfive-wdt.c @@ -554,7 +554,10 @@ static int starfive_wdt_resume(struct device *dev) starfive_wdt_set_reload_count(wdt, wdt->reload); starfive_wdt_lock(wdt); - return starfive_wdt_start(wdt); + if (watchdog_active(&wdt->wdd)) + return starfive_wdt_start(wdt); + + return 0; } static int starfive_wdt_runtime_suspend(struct device *dev) -- 2.43.0
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