Re: [linux-pm] [PATCH 0/8] Suspend block api (version 6)

From: Tony Lindgren
Date: Thu May 13 2010 - 17:37:32 EST


* Daniel Walker <dwalker@xxxxxxxxxx> [100513 14:28]:
> On Thu, 2010-05-13 at 23:27 +0200, Rafael J. Wysocki wrote:
>
> > Because someone would have to remove suspend blockers (or rather wakelocks)
> > from the drivers, test that they work correctly without suspend blockers and
> > submit the modified versions. Going forward, every party responsible for such
> > a driver would have to maintain an out-of-tree version with suspend blockers
> > (or wakelocks) anyway, so the incentive to do that is zero.
>
> They should work without wakelock since wakelock are optional .. I mean
> there's nothing in suspend blockers I've seen that indicates it's
> required for some drivers to work. So it's just a matter of patching out
> the wakelocks, with no need to re-test anything.
>
> You get the driver mainlined, then maintain a small patch to add
> wakelocks. Not hard at all , with lots of incentive to do so since you
> don't have to maintain such a large block of code out of tree.
>
> > Practically, as long as the opportunistic suspend is out of tree, there will be
> > a _growing_ number of out-of-tree drivers out there, which is not acceptable
> > in the long run.
>
> I don't see why your saying that. These driver should work with out all
> of this, which means they can get mainlined right now.

I agree with Daniel here. We should keep merging the drivers separate
from the suspend blocks issues.

Regards,

Tony
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