[06/10] watchdog: keembay: Removed timeout update in the TO ISR

Message ID 20210512084724.14634-7-shruthi.sanil@intel.com
State Superseded
Headers show
Series
  • Intel Keem Bay WDT bug fixes
Related show

Commit Message

Sanil, Shruthi May 12, 2021, 8:47 a.m.
From: Shruthi Sanil <shruthi.sanil@intel.com>

In the TO ISR removed updating the Timeout value because
its not serving any purpose as the timer would have already expired
and the system would be rebooting.

Fixes: fa0f8d51e90d ("watchdog: Add watchdog driver for Intel Keembay Soc")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Kris Pan <kris.pan@intel.com>
Signed-off-by: Shruthi Sanil <shruthi.sanil@intel.com>
---
 drivers/watchdog/keembay_wdt.c | 1 -
 1 file changed, 1 deletion(-)

Comments

Guenter Roeck May 12, 2021, 2 p.m. | #1
On Wed, May 12, 2021 at 02:17:20PM +0530, shruthi.sanil@intel.com wrote:
> From: Shruthi Sanil <shruthi.sanil@intel.com>
> 
> In the TO ISR removed updating the Timeout value because
> its not serving any purpose as the timer would have already expired
> and the system would be rebooting.
> 
> Fixes: fa0f8d51e90d ("watchdog: Add watchdog driver for Intel Keembay Soc")
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Tested-by: Kris Pan <kris.pan@intel.com>
> Signed-off-by: Shruthi Sanil <shruthi.sanil@intel.com>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
>  drivers/watchdog/keembay_wdt.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/watchdog/keembay_wdt.c b/drivers/watchdog/keembay_wdt.c
> index 039753b9932b..dd192b8dff55 100644
> --- a/drivers/watchdog/keembay_wdt.c
> +++ b/drivers/watchdog/keembay_wdt.c
> @@ -141,7 +141,6 @@ static irqreturn_t keembay_wdt_to_isr(int irq, void *dev_id)
>  	struct keembay_wdt *wdt = dev_id;
>  	struct arm_smccc_res res;
>  
> -	keembay_wdt_writel(wdt, TIM_WATCHDOG, 1);
>  	arm_smccc_smc(WDT_ISR_CLEAR, WDT_TO_INT_MASK, 0, 0, 0, 0, 0, 0, &res);
>  	dev_crit(wdt->wdd.parent, "Intel Keem Bay non-sec wdt timeout.\n");
>  	emergency_restart();
> -- 
> 2.17.1
>

Patch

diff --git a/drivers/watchdog/keembay_wdt.c b/drivers/watchdog/keembay_wdt.c
index 039753b9932b..dd192b8dff55 100644
--- a/drivers/watchdog/keembay_wdt.c
+++ b/drivers/watchdog/keembay_wdt.c
@@ -141,7 +141,6 @@  static irqreturn_t keembay_wdt_to_isr(int irq, void *dev_id)
 	struct keembay_wdt *wdt = dev_id;
 	struct arm_smccc_res res;
 
-	keembay_wdt_writel(wdt, TIM_WATCHDOG, 1);
 	arm_smccc_smc(WDT_ISR_CLEAR, WDT_TO_INT_MASK, 0, 0, 0, 0, 0, 0, &res);
 	dev_crit(wdt->wdd.parent, "Intel Keem Bay non-sec wdt timeout.\n");
 	emergency_restart();