From: Ville Syrjälä ville.syrjala@linux.intel.com
This series is a continuation of the earlier attempt [1]. The first two patches from that series are still needed, but since they were unchanged I didn't include them here. The rest of the original series should be scrapped.
This time I dropped the 'reject' and 'vblank_always_enable_on_get' and instead did things like Daniel suggested. This does change the behaviour of blocking vblank waits for all drivers to return when the vblank interrupt gets disabled, whereas the old series made everything purely opt-in. To fix up the remaining drivers fully, someone needs to go and sprinkle the drm_vblank_on() calls there. Daniel volunteered to do that, so I'm not going to bother.
[1] http://lists.freedesktop.org/archives/dri-devel/2014-February/054372.html
Ville Syrjälä (3): drm: Make blocking vblank wait return when the vblank interrupts get disabled drm: Add drm_vblank_on() drm/i915: Use drm_vblank_on() to re-enable vblank interrupts
drivers/gpu/drm/drm_irq.c | 73 ++++++++++++++++++++++++++---------- drivers/gpu/drm/i915/intel_display.c | 13 ++++--- include/drm/drmP.h | 1 + 3 files changed, 63 insertions(+), 24 deletions(-)