[PATCH 1/3] [WATCHDOG] mpc83xx_wdt: add support for MPC86xx CPUs

Anton Vorontsov cbouatmailru at gmail.com
Tue May 13 06:53:03 EST 2008

On Mon, May 12, 2008 at 02:24:20PM -0500, Kumar Gala wrote:
> On May 12, 2008, at 1:52 PM, Anton Vorontsov wrote:
>> On MPC86xx the watchdog could be enabled only at power-on-reset, and
>> could not be disabled afterwards. We must ping the watchdog from the
>> kernel until the userspace handles it.
>> MPC83xx CPUs are only differ in a way that watchdog could be disabled
>> once, but after it was enabled via software it becomes just the same
>> as MPC86xx.
>> Thus, to support MPC86xx I added the kernel timer which pings the
>> watchdog until the userspace opens it.
>> Since we implemented the timer, now we're able to implement proper
>> handling for the CONFIG_WATCHDOG_NOWAYOUT case, for MPC83xx and  
>> MPC86xx.
>> Also move the probe code into subsys_initcall, because we want start
>> pinging the watchdog ASAP, and misc devices are available in
>> subsys_initcall.
>> Signed-off-by: Anton Vorontsov <avorontsov at ru.mvista.com>
>> ---
>> drivers/watchdog/Kconfig       |    4 +-
>> drivers/watchdog/mpc83xx_wdt.c |   63 +++++++++++++++++++++++++++++++ 
>> +++++----
> we should rename it to mpc8xxx_wdt.c

I don't see much sense in renaming the files just because the driver
now supports another line of processors... Do you really want the rename?
Please repeat if so.

Anton Vorontsov
email: cbouatmailru at gmail.com

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