diff options
| author | Nick Chan <towinchenmi@gmail.com> | 2024-10-02 00:59:52 +0800 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2024-11-04 13:13:02 +0100 |
| commit | e6a08988eb5948a99d1f3b48afab4ffff01ae9a4 (patch) | |
| tree | 4364183e1edb9dda4adf8ea10d31ecabc0c191d8 | |
| parent | 51dfe714c03c066aabc815a2bb2adcc998dfcb30 (diff) | |
watchdog: apple: Increase reset delay to 150ms
The Apple A8X SoC seems to be slowest at resetting, taking up to around
125ms to reset. Wait 150ms to be safe here.
Signed-off-by: Nick Chan <towinchenmi@gmail.com>
Reviewed-by: Sven Peter <sven@svenpeter.dev>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20241001170018.20139-3-towinchenmi@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
| -rw-r--r-- | drivers/watchdog/apple_wdt.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/watchdog/apple_wdt.c b/drivers/watchdog/apple_wdt.c index 62dabf223d90..95d9e37df41c 100644 --- a/drivers/watchdog/apple_wdt.c +++ b/drivers/watchdog/apple_wdt.c @@ -127,11 +127,11 @@ static int apple_wdt_restart(struct watchdog_device *wdd, unsigned long mode, /* * Flush writes and then wait for the SoC to reset. Even though the * reset is queued almost immediately experiments have shown that it - * can take up to ~20-25ms until the SoC is actually reset. Just wait - * 50ms here to be safe. + * can take up to ~120-125ms until the SoC is actually reset. Just + * wait 150ms here to be safe. */ (void)readl(wdt->regs + APPLE_WDT_WD1_CUR_TIME); - mdelay(50); + mdelay(150); return 0; } |