drm/i915: Mask out the HPD irq bits before setting them individually.
drm/i915: Mask out the HPD irq bits before setting them individually.

To disable previously enabled HPD IRQs we need to reset them and
set the enabled ones individually.

Signed-off-by: Egbert Eich <d0f3508a0b242623257f3971a925c8211f91345e@suse.de>
Reviewed-by: Jani Nikula <ba783f3beccaedfda693f41a15407d612a629408@intel.com>
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs