Accessing the display HW from the connector get_modes hooks should be prevented during driver init/shutdown similarly to how this is done in the encoder detect hooks and modeset as explained in the following commits: drm/i915: Prevent modesets during driver init/shutdown drm/i915: Disable hotplug detection works during driver init/shutdown drm/i915: Disable hotplug detection handlers during driver init/shutdown For the DP-SST/HDMI connectors the above is already ensured, since for these the required HW access - to read out the display's EDID - happens in the encoders' detect hook, however other connectors do a corresponding detection/HW access from the connector get_modes hook. Disable the access during init/shutdown from these hooks as well. Imre Deak (2): drm/i915: Prevent HW access during init from SDVO TV get_modes hook drm/i915: Prevent HW access during init from connector get_modes hooks drivers/gpu/drm/i915/display/intel_crt.c | 7 +++++++ drivers/gpu/drm/i915/display/intel_dp_mst.c | 4 ++++ drivers/gpu/drm/i915/display/intel_dvo.c | 5 +++++ drivers/gpu/drm/i915/display/intel_sdvo.c | 8 ++++++++ 4 files changed, 24 insertions(+) -- 2.39.2
