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| author | Georg Hofmann <georg@hofmannsweb.com> | 2019-04-08 21:25:54 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-22 08:17:14 +0200 |
| commit | 236048e53b5b21f38ae1ee3d2841a93c83205aba (patch) | |
| tree | a5a78dbd85f0e061a56f741fdf5f82fed8fccfe8 /drivers | |
| parent | 4aa215d0230222375c385559d98be8f119626a05 (diff) | |
| download | linux-stable-236048e53b5b21f38ae1ee3d2841a93c83205aba.tar.gz linux-stable-236048e53b5b21f38ae1ee3d2841a93c83205aba.tar.bz2 linux-stable-236048e53b5b21f38ae1ee3d2841a93c83205aba.zip | |
watchdog: imx2_wdt: Fix set_timeout for big timeout values
[ Upstream commit b07e228eee69601addba98b47b1a3850569e5013 ]
The documentated behavior is: if max_hw_heartbeat_ms is implemented, the
minimum of the set_timeout argument and max_hw_heartbeat_ms should be used.
This patch implements this behavior.
Previously only the first 7bits were used and the input argument was
returned.
Signed-off-by: Georg Hofmann <georg@hofmannsweb.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/watchdog/imx2_wdt.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c index 518dfa1047cb..5098982e1a58 100644 --- a/drivers/watchdog/imx2_wdt.c +++ b/drivers/watchdog/imx2_wdt.c @@ -181,8 +181,10 @@ static void __imx2_wdt_set_timeout(struct watchdog_device *wdog, static int imx2_wdt_set_timeout(struct watchdog_device *wdog, unsigned int new_timeout) { - __imx2_wdt_set_timeout(wdog, new_timeout); + unsigned int actual; + actual = min(new_timeout, wdog->max_hw_heartbeat_ms * 1000); + __imx2_wdt_set_timeout(wdog, actual); wdog->timeout = new_timeout; return 0; } |