There are a couple of WARN_ON(!wm_changed); on skl, those should be gone with the skylake wm patch.
intel_crtc->atomic is a remnant from a transitional era, and it's time to kill it. :)
This series applies on top of
[PATCH 0/4] cdclk fixes
and perhaps (didn't check if it needed it)
[PATCH 0/8] Make plane updates use the atomic state.
Maarten Lankhorst (12):
drm/i915: Move disable_cxsr to the crtc_state.
drm/i915: Calculate watermark related members in the crtc_state, v3.
drm/i915/skl: Update watermarks before the crtc is disabled.
drm/i915: Remove double wait_for_vblank on broadwell.
drm/i915: Kill off intel_crtc->atomic.wait_vblank, v2.
drm/i915: Remove intel_crtc->atomic.disable_ips.
drm/i915: Remove atomic.pre_disable_primary.
drm/i915: Remove update_sprite_watermarks.
drm/i915: Remove some post-commit members from intel_crtc->atomic, v2.
drm/i915: Nuke fbc members from intel_crtc->atomic.
drm/i915: Keep track of the cdclk as if all crtc's were active.
drm/i915: Calculate visibility in check_plane correctly regardless of
dpms.
drivers/gpu/drm/i915/i915_drv.h | 2 +-
drivers/gpu/drm/i915/intel_atomic.c | 4 +
drivers/gpu/drm/i915/intel_atomic_plane.c | 4 +-
drivers/gpu/drm/i915/intel_display.c | 352 +++++++++++++++++-------------
drivers/gpu/drm/i915/intel_drv.h | 36 +--
5 files changed, 213 insertions(+), 185 deletions(-)
--
2.1.0
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