Re: Shutting down PCI devices on suspend

[Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>]

On Sun, 2004-12-12 at 18:15 +0100, Pavel Machek wrote:

> * legacy, like VGA or IDE -- okay, we need drivers for those. You need
> to reinit them on resume, anyway, so....
							
The current situation is that we can reinit /most/ VGA hardware from
userspace, but it's less than trivial to make sure that the appropriate
devices are shut down. Surely the situation is more like the following:

1) Some devices don't have drivers. In most cases, it doesn't matter
what power state they're in. Therefore, setting them to D3 (or whatever
SxD says) shouldn't be a problem.

2) For devices that do have drivers, the drivers should set them to the
appropriate power state.

I'd argue that devices that need to be in a specific power state but
whose drivers don't state this have broken drivers. If there's no driver
in charge of the device, we should be able to do whatever we want.
-- 
Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org



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