Re: [PATCH] dmaengine/ste_dma40: support pm in dma40

[Narayanan G]

On Thu, Nov 17, 2011 at 06:23:52 +0100, Vinod Koul wrote:
> runtime pm manages the device power management. It will call your
> suspend/resume callbacks when your device is idle/active and manages the
> device usage for you.
> Within your device you need to do your own management, which should be
> linked to channel being active. You should not club the two.
> 
> I am not sure if the clock framework can help you on this

Instead of switching on and off eventlines very frequently, I'll
do it in the runtime_suspend() and runtime_resume(), so that it
looks more neat and can get away with these usage counters.
I will re-work and submit a new version of this patch.

~Narayanan
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/