[Intel-gfx] [PATCH v4 0/4] Fix modeset locking issue in HDCP MST

[Suraj Kandpal]

HDCP MST scenario sees modeset locking issue ever since
topology_state was added to drm_atomic_state and all modeset
locks were being taken for us causing a locking issue to occur
when we iterate over connectors to assign vcpi id, the fix
being to pass acquire_ctx to drm_modeset_lock. 

--v2
-call intel_hdcp_prepare_stream instead of intel_hdcp_required_stream
in the beginning [Ankit]
-replace intel_connector argument with intel_encoder [Jani]

--v3
-break intel_hdcp_required_stream to two parts and call
intel_hdcp_set_content_streams at beginning [Ankit]
-Move encoder_type0 out of loop [Ankit]

--v4
-rename intel_set_content_stream [Ankit]
-remove return type from intel_hdcp_prepare_stream and
intel_hdcp_required_content_stream [Ankit]

Signed-off-by: Suraj Kandpal <suraj.kandpal at intel.com>

Suraj Kandpal (4):
  drm/i915/hdcp: add intel_atomic_state argument to hdcp_enable function
  drm/i915/hdcp: Remove enforce_type0 check outside loop
  drm/i915/hdcp: Fix modeset locking issue in hdcp mst
  drm/i915/hdcp: Fill hdcp2_streamid_type and k in appropriate places

 drivers/gpu/drm/i915/display/intel_ddi.c    |   4 +-
 drivers/gpu/drm/i915/display/intel_dp_mst.c |   4 +-
 drivers/gpu/drm/i915/display/intel_hdcp.c   | 143 ++++++++++----------
 drivers/gpu/drm/i915/display/intel_hdcp.h   |   6 +-
 4 files changed, 81 insertions(+), 76 deletions(-)

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2.25.1