USB altmodes code would send OOB notifications to the drm_connector specified in the device tree. However as the MSM DP driver uses drm_bridge_connector, there is no way to receive these event directly. Implement a bridge between oob_hotplug_event and drm_bridge's hpd_notify and use it to deliver altmode messages to the MSM DP driver.
Note, I left the original 'bool connected' field to be used by the notifiers. However I think that it should be replaced in favour of using the dp->hpd_state properly.
Bjorn Andersson (2): drm: Add HPD state to drm_connector_oob_hotplug_event() drm/msm/dp: Implement hpd_notify()
Dmitry Baryshkov (3): drm/bridge_connector: stop filtering events in drm_bridge_connector_hpd_cb() drm/bridge_connector: implement oob_hotplug_event drm/msm/dp: remove most of usbpd-related remains
drivers/gpu/drm/drm_bridge_connector.c | 17 +++-- drivers/gpu/drm/drm_connector.c | 6 +- drivers/gpu/drm/i915/display/intel_dp.c | 17 ++++- drivers/gpu/drm/i915/i915_drv.h | 3 + drivers/gpu/drm/msm/Makefile | 1 - drivers/gpu/drm/msm/dp/dp_ctrl.h | 1 - drivers/gpu/drm/msm/dp/dp_debug.c | 6 +- drivers/gpu/drm/msm/dp/dp_debug.h | 4 +- drivers/gpu/drm/msm/dp/dp_display.c | 81 +++++++++++------------- drivers/gpu/drm/msm/dp/dp_display.h | 1 + drivers/gpu/drm/msm/dp/dp_drm.c | 3 + drivers/gpu/drm/msm/dp/dp_drm.h | 2 + drivers/gpu/drm/msm/dp/dp_hpd.c | 67 -------------------- drivers/gpu/drm/msm/dp/dp_hpd.h | 78 ----------------------- drivers/gpu/drm/msm/dp/dp_panel.h | 1 - drivers/gpu/drm/msm/dp/dp_power.c | 2 +- drivers/gpu/drm/msm/dp/dp_power.h | 3 +- drivers/usb/typec/altmodes/displayport.c | 10 +-- include/drm/drm_connector.h | 6 +- 19 files changed, 88 insertions(+), 221 deletions(-) delete mode 100644 drivers/gpu/drm/msm/dp/dp_hpd.c delete mode 100644 drivers/gpu/drm/msm/dp/dp_hpd.h