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watchdog: keembay: Update pretimeout to zero in the TH ISR

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The pretimeout has to be updated to zero during the ISR of the
ThresHold interrupt. Else the TH interrupt would be triggerred for
every tick until the timeout.

Fixes: fa0f8d51e9 ("watchdog: Add watchdog driver for Intel Keembay Soc")
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
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>
Link: https://lore.kernel.org/r/20210517174953.19404-4-shruthi.sanil@intel.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This commit is contained in:
Shruthi Sanil 2021-05-17 23:19:47 +05:30 committed by Wim Van Sebroeck
parent 0f7bfaf10c
commit 75f6c56dfe
1 changed files with 2 additions and 0 deletions
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2
drivers/watchdog/keembay_wdt.c
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@ -154,6 +154,8 @@ static irqreturn_t keembay_wdt_th_isr(int irq, void *dev_id)
struct keembay_wdt *wdt = dev_id;
struct arm_smccc_res res;
keembay_wdt_set_pretimeout(&wdt->wdd, 0x0);
arm_smccc_smc(WDT_ISR_CLEAR, WDT_ISR_MASK, 0, 0, 0, 0, 0, 0, &res);
dev_crit(wdt->wdd.parent, "Intel Keem Bay non-sec wdt pre-timeout.\n");
watchdog_notify_pretimeout(&wdt->wdd);