linux-kernel - Re: [PATCH 06/10] watchdog: keembay: Removed timeout update in the TO ISR

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Date:   Wed, 12 May 2021 07:00:02 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     shruthi.sanil@...el.com
Cc:     wim@...ux-watchdog.org, linux-watchdog@...r.kernel.org,
        linux-kernel@...r.kernel.org, andriy.shevchenko@...ux.intel.com,
        kris.pan@...ux.intel.com, mgross@...ux.intel.com,
        srikanth.thokala@...el.com, lakshmi.bai.raja.subramanian@...el.com,
        mallikarjunappa.sangannavar@...el.com
Subject: Re: [PATCH 06/10] watchdog: keembay: Removed timeout update in the
 TO ISR

On Wed, May 12, 2021 at 02:17:20PM +0530, shruthi.sanil@...el.com wrote:
> From: Shruthi Sanil <shruthi.sanil@...el.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@...ux.intel.com>
> Tested-by: Kris Pan <kris.pan@...el.com>
> Signed-off-by: Shruthi Sanil <shruthi.sanil@...el.com>

Reviewed-by: Guenter Roeck <linux@...ck-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
>