[v2,0/7] drm/msm/dp: Support for external displays

Message

Bjorn Andersson Sept. 16, 2022, 8 p.m. UTC

Introduce support for DisplayPort on SDM845 and SC8280XP, followed by
introduction of drm_bridge based HPD handling.

The version of these patches are restarted, as the previous
drm_connector_oob_hotplug_event()-based approach was abandoned and this
only barely resembles that effort.

In this effort the HPD handling is based on the reliance of the
hpd_notify() being invoked by a downstream (next_bridge) drm_bridge
implementation, such as the standard display-connector, or a something
like an USB Type-C controller implementation.

Bjorn Andersson (7):
  dt-bindings: msm/dp: Add SDM845 and SC8280XP compatibles
  drm/msm/dp: Stop using DP id as index in desc
  drm/msm/dp: Add DP and EDP compatibles for SC8280XP
  drm/msm/dp: Add SDM845 DisplayPort instance
  drm/msm/dp: Implement hpd_notify()
  drm/msm/dp: Don't enable HPD interrupts for edp
  drm/msm/dp: HPD handling relates to next_bridge

 .../bindings/display/msm/dp-controller.yaml   |   3 +
 drivers/gpu/drm/msm/dp/dp_display.c           | 135 +++++++++++-------
 drivers/gpu/drm/msm/dp/dp_drm.c               |   1 +
 drivers/gpu/drm/msm/dp/dp_drm.h               |   2 +
 drivers/gpu/drm/msm/msm_drv.h                 |   1 +
 5 files changed, 88 insertions(+), 54 deletions(-)