From: rentao.bupt@gmail.com To: Wim Van Sebroeck <wim@linux-watchdog.org>, Guenter Roeck <linux@roeck-us.net>, Joel Stanley <joel@jms.id.au>, Andrew Jeffery <andrew@aj.id.au>, linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, Tao Ren <taoren@fb.com>, Amithash Prasad <amithash@fb.com> Cc: Tao Ren <rentao.bupt@gmail.com> Subject: [PATCH] watchdog: aspeed: fix hardware timeout calculation Date: Fri, 16 Apr 2021 20:42:49 -0700 [thread overview] Message-ID: <20210417034249.5978-1-rentao.bupt@gmail.com> (raw) From: Tao Ren <rentao.bupt@gmail.com> Fix hardware timeout calculation in aspeed_wdt_set_timeout function to ensure the reload value does not exceed the hardware limit. Fixes: efa859f7d786 ("watchdog: Add Aspeed watchdog driver") Reported-by: Amithash Prasad <amithash@fb.com> Signed-off-by: Tao Ren <rentao.bupt@gmail.com> --- drivers/watchdog/aspeed_wdt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/watchdog/aspeed_wdt.c b/drivers/watchdog/aspeed_wdt.c index 7e00960651fa..507fd815d767 100644 --- a/drivers/watchdog/aspeed_wdt.c +++ b/drivers/watchdog/aspeed_wdt.c @@ -147,7 +147,7 @@ static int aspeed_wdt_set_timeout(struct watchdog_device *wdd, wdd->timeout = timeout; - actual = min(timeout, wdd->max_hw_heartbeat_ms * 1000); + actual = min(timeout, wdd->max_hw_heartbeat_ms / 1000); writel(actual * WDT_RATE_1MHZ, wdt->base + WDT_RELOAD_VALUE); writel(WDT_RESTART_MAGIC, wdt->base + WDT_RESTART); -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: rentao.bupt@gmail.com To: Wim Van Sebroeck <wim@linux-watchdog.org>, Guenter Roeck <linux@roeck-us.net>, Joel Stanley <joel@jms.id.au>, Andrew Jeffery <andrew@aj.id.au>, linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, Tao Ren <taoren@fb.com>, Amithash Prasad <amithash@fb.com> Cc: Tao Ren <rentao.bupt@gmail.com> Subject: [PATCH] watchdog: aspeed: fix hardware timeout calculation Date: Fri, 16 Apr 2021 20:42:49 -0700 [thread overview] Message-ID: <20210417034249.5978-1-rentao.bupt@gmail.com> (raw) From: Tao Ren <rentao.bupt@gmail.com> Fix hardware timeout calculation in aspeed_wdt_set_timeout function to ensure the reload value does not exceed the hardware limit. Fixes: efa859f7d786 ("watchdog: Add Aspeed watchdog driver") Reported-by: Amithash Prasad <amithash@fb.com> Signed-off-by: Tao Ren <rentao.bupt@gmail.com> --- drivers/watchdog/aspeed_wdt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/watchdog/aspeed_wdt.c b/drivers/watchdog/aspeed_wdt.c index 7e00960651fa..507fd815d767 100644 --- a/drivers/watchdog/aspeed_wdt.c +++ b/drivers/watchdog/aspeed_wdt.c @@ -147,7 +147,7 @@ static int aspeed_wdt_set_timeout(struct watchdog_device *wdd, wdd->timeout = timeout; - actual = min(timeout, wdd->max_hw_heartbeat_ms * 1000); + actual = min(timeout, wdd->max_hw_heartbeat_ms / 1000); writel(actual * WDT_RATE_1MHZ, wdt->base + WDT_RELOAD_VALUE); writel(WDT_RESTART_MAGIC, wdt->base + WDT_RESTART); -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2021-04-17 3:43 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-04-17 3:42 rentao.bupt [this message] 2021-04-17 3:42 ` [PATCH] watchdog: aspeed: fix hardware timeout calculation rentao.bupt 2021-04-17 4:20 ` Guenter Roeck 2021-04-17 4:20 ` Guenter Roeck 2021-04-17 4:20 ` Guenter Roeck 2021-05-21 1:51 ` Tao Ren 2021-05-21 1:51 ` Tao Ren 2021-05-21 1:51 ` Tao Ren 2021-05-21 2:44 ` Guenter Roeck 2021-05-21 2:44 ` Guenter Roeck 2021-05-21 2:44 ` Guenter Roeck 2021-05-21 2:59 ` Tao Ren 2021-05-21 2:59 ` Tao Ren 2021-05-21 2:59 ` Tao Ren
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