[PATCH 2/5] drm: Add initial dnyamic power off feature

[Alan Cox]

On Mon, 10 Sep 2012 14:31:52 +1000
Dave Airlie <airlied at gmail.com> wrote:

> From: Dave Airlie <airlied at redhat.com>
> 
> For secondary GPUs in laptops, i.e. optimus or powerxpress, we have
> methods for powering down the GPU completely. This adds support
> to the drm core for powering back up the GPU on any access from
> ioctls or sysfs interfaces, and fires a 5s timer to test if
> we can power the GPU off.


Is there a reason for basically re-inventing the existing Linux dynamic
power management layer ?

Alan