[PATCH v2 4/6] ath10k: make warm reset a bit safer and faster

Kalle Valo kvalo at qca.qualcomm.com
Thu Oct 23 06:14:00 PDT 2014

Michal Kazior <michal.kazior at tieto.com> writes:

> On 20 October 2014 14:14, Michal Kazior <michal.kazior at tieto.com> wrote:
>> One of the problems with warm reset I've found is
>> that it must be guaranteed that copy engine
>> registers are not being accessed while being
>> reset. Otherwise in worst case scenario the host
>> may lock up.
>> Instead of using sleeps and hoping the device is
>> operational in some arbitrary timeframes use
>> firmware indication register.
>> As a side effect this makes driver
>> boot/stop/recovery faster.
>> Signed-off-by: Michal Kazior <michal.kazior at tieto.com>
>> ---
>> Notes:
>>     v2:
>>      * fix kernel panic on early fw crash due to CE not being fully initialized [Janusz]
> Marek reported he sees a memory leak and git bisect blames this patch.
> Please don't apply this patch yet.

Ok, thanks for letting me know. What about rest of the patches in the
patchset? I assume it's safe to apply them.

Kalle Valo

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