linux-kernel - [PATCH 0/7] drm/msm/dp: Support for external displays

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Date:   Tue,  9 Aug 2022 20:50:06 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Kuogee Hsieh <quic_khsieh@...cinc.com>,
        Sankeerth Billakanti <quic_sbillaka@...cinc.com>
Cc:     Sean Paul <sean@...rly.run>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 0/7] drm/msm/dp: Support for external displays

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           | 136 +++++++++++-------
 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/msm_drv.h                 |   1 +
 6 files changed, 92 insertions(+), 54 deletions(-)

-- 
2.35.1