linux-kernel - [PATCH 0/4] drm/bridge-connector: simplify handling of USB-C DP

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Message-Id: <20230729004913.215872-1-dmitry.baryshkov@linaro.org>
Date:   Sat, 29 Jul 2023 03:49:09 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Robert Foss <rfoss@...nel.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Simon Ser <contact@...rsion.fr>, Janne Grunau <j@...nau.net>
Cc:     Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        Harry Wentland <harry.wentland@....com>,
        Leo Li <sunpeng.li@....com>,
        Rodrigo Siqueira <Rodrigo.Siqueira@....com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, intel-gfx@...ts.freedesktop.org
Subject: [PATCH 0/4] drm/bridge-connector: simplify handling of USB-C DP

During the discussion of DP connetors, it was pointed out that existing
DP drivers supporting USB-C altmode (AMDGPU, Intel) use
DRM_MODE_CONNECTOR_DisplayPort for such connectors rather than
DRM_MODE_CONNECTOR_USB.

This patchset attempts to solve this issue. It adds USB to the enum
drm_dp_subconnector and then provides a simple yet efficient way to
define DP-in-USB subconnector type for the drivers that use
drm_bridge_connector.

Dmitry Baryshkov (4):
  drm: allow specifying default subtype for the DP subconnector property
  drm/bridge-connector: handle subconnector types
  drm/uapi: document the USB subconnector type
  soc: qcom: pmic_glink: properly describe the DP connector

 .../gpu/drm/amd/amdgpu/amdgpu_connectors.c    |  3 +-
 .../display/amdgpu_dm/amdgpu_dm_mst_types.c   |  3 +-
 drivers/gpu/drm/drm_bridge_connector.c        | 33 ++++++++++++++++++-
 drivers/gpu/drm/drm_connector.c               |  7 ++--
 drivers/gpu/drm/i915/display/intel_dp.c       |  3 +-
 drivers/soc/qcom/pmic_glink_altmode.c         |  3 +-
 include/drm/drm_bridge.h                      |  4 +++
 include/drm/drm_connector.h                   |  3 +-
 include/uapi/drm/drm_mode.h                   |  1 +
 9 files changed, 52 insertions(+), 8 deletions(-)

-- 
2.39.2