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watchdog: aspeed: Move init to arch_initcall 

Probing at device_initcall time lead to perverse cases where the
watchdog was probed after, say, I2C devices, which then leaves a
potentially running watchdog at the mercy of I2C device behaviour and
bus conditions.

Load the watchdog driver early to ensure that the kernel is patting it
well before initialising peripherals.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
hifive-unleashed-5.1
Andrew Jeffery 2017-09-20 15:00:20 +09:30 committed by Wim Van Sebroeck
parent 2050dd0610
commit d4238aa458
1 changed files with 12 additions and 1 deletions
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13
drivers/watchdog/aspeed_wdt.c
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@ -316,7 +316,18 @@ static struct platform_driver aspeed_watchdog_driver = {
.of_match_table = of_match_ptr(aspeed_wdt_of_table),
},
};
module_platform_driver(aspeed_watchdog_driver);
static int __init aspeed_wdt_init(void)
{
return platform_driver_register(&aspeed_watchdog_driver);
}
arch_initcall(aspeed_wdt_init);
static void __exit aspeed_wdt_exit(void)
{
platform_driver_unregister(&aspeed_watchdog_driver);
}
module_exit(aspeed_wdt_exit);
MODULE_DESCRIPTION("Aspeed Watchdog Driver");
MODULE_LICENSE("GPL");