linux-kernel - [PATCH v1 2/8] watchdog: f71808e_wdt: indicate WDIOF_CARDRESET support in watchdog

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Date:   Thu, 11 Jun 2020 21:17:43 +0200
From:   Ahmad Fatoum <a.fatoum@...gutronix.de>
To:     Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Knud Poulsen <knpo@...e.org>
Cc:     linux-watchdog@...r.kernel.org, kernel@...gutronix.de,
        Ahmad Fatoum <a.fatoum@...gutronix.de>, stable@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1 2/8] watchdog: f71808e_wdt: indicate WDIOF_CARDRESET support in watchdog_info.options

The driver supports populating bootstatus with WDIOF_CARDRESET, but so
far userspace couldn't portably determine whether absence of this flag
meant no watchdog reset or no driver support. Or-in the bit to fix this.

Fixes: b97cb21a4634 ("watchdog: f71808e_wdt: Fix WDTMOUT_STS register read")
Cc: stable@...r.kernel.org
Signed-off-by: Ahmad Fatoum <a.fatoum@...gutronix.de>
---
 drivers/watchdog/f71808e_wdt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/f71808e_wdt.c b/drivers/watchdog/f71808e_wdt.c
index a3c44d75d80e..c8ce80c13403 100644
--- a/drivers/watchdog/f71808e_wdt.c
+++ b/drivers/watchdog/f71808e_wdt.c
@@ -692,7 +692,8 @@ static int __init watchdog_init(int sioaddr)
 	watchdog.sioaddr = sioaddr;
 	watchdog.ident.options = WDIOC_SETTIMEOUT
 				| WDIOF_MAGICCLOSE
-				| WDIOF_KEEPALIVEPING;
+				| WDIOF_KEEPALIVEPING
+				| WDIOF_CARDRESET;
 
 	snprintf(watchdog.ident.identity,
 		sizeof(watchdog.ident.identity), "%s watchdog",
-- 
2.27.0