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[v7,0/3] drm/bridge_connector: implement OOB HPD handling

Message ID 20230824235636.1436665-1-dmitry.baryshkov@linaro.org
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Series drm/bridge_connector: implement OOB HPD handling | expand

Message

Dmitry Baryshkov Aug. 24, 2023, 11:56 p.m. UTC 
Note, numbering for this series starts from v5, since there were several
revisions for this patchset under a different series title ([1]).

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.

Merge strategy: since this series touches i915 code, it might make sense
to merge all three patches through drm-intel.

[1] https://patchwork.freedesktop.org/series/103449/

Changes since v6:
- Rebased on top of linux-next. Fixed the freshly added
  new drm_connector_oob_hotplug_event() call.

Changes since v5:
- Fixed checkpatch warning in the first patch (noted by intel-gfx CI).

Changes since v4:
- Picked up the patchset
- Dropped msm-specific patches
- Changed drm_bridge_connector_oob_hotplug_event to call connector's HPD
  callback directly, rather than going through the last bridge's
  hpd_notify
- Added proper fwnode for the drm_bridge_connector

Bjorn Andersson (1):
  drm: Add HPD state to drm_connector_oob_hotplug_event()

Dmitry Baryshkov (2):
  drm/bridge_connector: stop filtering events in
    drm_bridge_connector_hpd_cb()
  drm/bridge_connector: implement oob_hotplug_event

 drivers/gpu/drm/drm_bridge_connector.c        | 34 ++++++++++++++-----
 drivers/gpu/drm/drm_connector.c               |  6 ++--
 .../gpu/drm/i915/display/intel_display_core.h |  3 ++
 drivers/gpu/drm/i915/display/intel_dp.c       | 17 ++++++++--
 drivers/usb/typec/altmodes/displayport.c      | 17 +++++-----
 include/drm/drm_connector.h                   |  6 ++--
 6 files changed, 60 insertions(+), 23 deletions(-)