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| author | Anson Huang <Anson.Huang@nxp.com> | 2020-07-31 02:03:32 +0300 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2020-10-14 16:02:23 +0300 |
| commit | 743949466e55732ae7eef038abf291b9b39d3307 (patch) | |
| tree | f5f87e7a56cf271f2b2b8e14e8164c044aa532f0 /drivers/watchdog/qcom-wdt.c | |
| parent | beaabe0e2356648dfd08b52a78350bb531122ba8 (diff) | |
| download | linux-743949466e55732ae7eef038abf291b9b39d3307.tar.xz | |
watchdog: imx7ulp: Strictly follow the sequence for wdog operations
According to reference manual, the i.MX7ULP WDOG's operations except
refresh should follow below sequence:
1. disable global interrupts;
2. unlock the wdog and wait unlock bit set;
3. reconfigure the wdog and wait for reconfiguration bit set;
4. enabel global interrupts.
Strictly follow the recommended sequence can make it more robust.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/1596150213-31638-1-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog/qcom-wdt.c')
0 files changed, 0 insertions, 0 deletions