From 8007935305610d577746b888bd1864b34fb0ea13 Mon Sep 17 00:00:00 2001 From: Pali Rohár Date: Tue, 26 Jul 2022 10:56:12 +0200 Subject: watchdog: armada_37xx_wdt: Fix .set_timeout callback MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ioctl(WDIOC_SETTIMEOUT) calls .set_timeout and .ping callbacks and it is expected that it changes current watchdog timeout. armada_37xx_wdt's .ping callback just reping counter 0 and does not touch counter 1 used for timeout. So it is needed to set counter 1 to the new value in .set_timeout callback to ensure ioctl(WDIOC_SETTIMEOUT) functionality. Fix it. Fixes: 54e3d9b518c8 ("watchdog: Add support for Armada 37xx CPU watchdog") Signed-off-by: Pali Rohár Reviewed-by: Guenter Roeck Reviewed-by: Marek Behún Link: https://lore.kernel.org/r/20220726085612.10672-1-pali@kernel.org Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/armada_37xx_wdt.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/watchdog/armada_37xx_wdt.c b/drivers/watchdog/armada_37xx_wdt.c index 854b1cc723cb..ac9fed1ef681 100644 --- a/drivers/watchdog/armada_37xx_wdt.c +++ b/drivers/watchdog/armada_37xx_wdt.c @@ -179,6 +179,8 @@ static int armada_37xx_wdt_set_timeout(struct watchdog_device *wdt, dev->timeout = (u64)dev->clk_rate * timeout; do_div(dev->timeout, CNTR_CTRL_PRESCALE_MIN); + set_counter_value(dev, CNTR_ID_WDOG, dev->timeout); + return 0; } -- cgit v1.2.3