This v9 version has fixed crome-os NULL pointer dereference by just reordering connector status condition.
It has been tested manually with below IGT series on TGL and ICL. https://patchwork.freedesktop.org/series/82987/
[PATCH v9 12/19] misc/mei/hdcp: Fix AUTH_STREAM_REQ cmd buffer len has an Ack from Tomas to merge it via drm-intel.
[PATCH v9 13/19] drm/hdcp: Max MST content streams has an Ack from drm-misc maintainer to merge it via drm-intel.
Test-with: 20201126050320.2434-2-karthik.b.s@intel.com
Anshuman Gupta (19): drm/i915/hdcp: Update CP property in update_pipe drm/i915/hdcp: Get conn while content_type changed drm/i915/hotplug: Handle CP_IRQ for DP-MST drm/i915/hdcp: No HDCP when encoder is't initialized drm/i915/hdcp: DP MST transcoder for link and stream drm/i915/hdcp: Move HDCP enc status timeout to header drm/i915/hdcp: HDCP stream encryption support drm/i915/hdcp: Configure HDCP1.4 MST steram encryption status drm/i915/hdcp: Enable Gen12 HDCP 1.4 DP MST support drm/i915/hdcp: Pass dig_port to intel_hdcp_init drm/i915/hdcp: Encapsulate hdcp_port_data to dig_port misc/mei/hdcp: Fix AUTH_STREAM_REQ cmd buffer len drm/hdcp: Max MST content streams drm/i915/hdcp: MST streams support in hdcp port_data drm/i915/hdcp: Pass connector to check_2_2_link drm/i915/hdcp: Add HDCP 2.2 stream register drm/i915/hdcp: Support for HDCP 2.2 MST shim callbacks drm/i915/hdcp: Configure HDCP2.2 MST steram encryption status drm/i915/hdcp: Enable HDCP 2.2 MST support
drivers/gpu/drm/i915/display/intel_ddi.c | 14 +- drivers/gpu/drm/i915/display/intel_ddi.h | 6 +- .../drm/i915/display/intel_display_types.h | 20 +- drivers/gpu/drm/i915/display/intel_dp.c | 14 +- drivers/gpu/drm/i915/display/intel_dp_hdcp.c | 186 +++++++++-- drivers/gpu/drm/i915/display/intel_dp_mst.c | 9 +- drivers/gpu/drm/i915/display/intel_hdcp.c | 303 ++++++++++++++---- drivers/gpu/drm/i915/display/intel_hdcp.h | 8 +- drivers/gpu/drm/i915/display/intel_hdmi.c | 19 +- drivers/gpu/drm/i915/i915_reg.h | 40 +++ drivers/misc/mei/hdcp/mei_hdcp.c | 3 +- include/drm/drm_hdcp.h | 8 +- 12 files changed, 510 insertions(+), 120 deletions(-)