linux-kernel - [PATCH 4.14 189/228] watchdog: f71808e_wdt: indicate WDIOF_CARDRESET support in watchdog

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Message-Id: <20200820091617.017255435@linuxfoundation.org>
Date:   Thu, 20 Aug 2020 11:22:44 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Ahmad Fatoum <a.fatoum@...gutronix.de>,
        Guenter Roeck <linux@...ck-us.net>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>
Subject: [PATCH 4.14 189/228] watchdog: f71808e_wdt: indicate WDIOF_CARDRESET support in watchdog_info.options

From: Ahmad Fatoum <a.fatoum@...gutronix.de>

commit e871e93fb08a619dfc015974a05768ed6880fd82 upstream.

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>
Reviewed-by: Guenter Roeck <linux@...ck-us.net>
Link: https://lore.kernel.org/r/20200611191750.28096-3-a.fatoum@pengutronix.de
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@...ux-watchdog.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/watchdog/f71808e_wdt.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/watchdog/f71808e_wdt.c
+++ b/drivers/watchdog/f71808e_wdt.c
@@ -690,7 +690,8 @@ static int __init watchdog_init(int sioa
 	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",