drm/i915: only enable sdvo hotplug irq if needed
Avoid constant wakeups caused by noisy irq lines when we don't even care about the irq. This should be particularly useful for i945g/gm where the hotplug has been disabled: commit 768b107e Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Fri May 4 11:29:56 2012 +0200 drm/i915: disable sdvo hotplug on i945g/gm v2: While at it, remove the bogus hotplug_active read, and do not mask hotplug_active[0] before checking whether the irq is needed, per discussion with Daniel on IRC. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=38442 Tested-by:Dominik Köppl <dominik@devwork.org> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch>
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